This list is for the discussion of CNC and related topics including CAD, CAM,
EDM, & DRO.  The list focuses on the construction of home shop CNC machines
along with the technologies a CNC hobbyist will need in a Home Shop environment.
This list does NOT cover general machining techniques, speeds & feeds, or any
other type question that would have the same answer for a manual machine. This
is not a forum for the discussion of commercial shop issues, but commercial
users are welcome and encouraged to participate in the discussion of hobby
related issues and the building of machines that are likely to be used in a home
shop. This group is strictly aimed at the "home workshop bunch".

Normally this list is not moderated, but is closely monitored. New member start
out moderated and will be converted to unmoderated once we see a couple of post.
This is done to keep out spammer and other trouble makers. Any member is subject
to moderation or banning without notice if they create problems on the list or
violate any of the below rules. Moderators can be reached off list at
CAD_CAM_EDM_DRO-owner@yahoogroups.com to discuss any decision or to make
suggestion.

We feel that what makes the CCED list so valuable and actively read is that it
is very tightly focused. Members know they can subscribe to this list and learn
useful and valuable information on building a CNC machine without wasting time
on general yak and shop talk. If you are looking for a place to jaw with some
crusty machinists this is not it. If you are looking to learn about CNC
machining and how to implement this in your own workshop then you have found the
right place.

LIST RULES:
o Any request, offers, or discussion of pirated or cracked software is strictly
forbidden and can result in the posters immediate banning without prior notice.
o Flaming, Off Topic Posts, Arguments, or rabble rousing are not allowed with
the threat of immediate moderation or banning if you feel you must.
o Posting items for sale or auction is allowed as long as the items are directly
related to the subject matter of this list and the privilege is not abused.
Abuse would be considered repeatedly posting the same items in a short time
period or posting a catalog type listing. Posting the prices for items you have
to sell is acceptable and encouraged. All dealing on an item are to be conducted
privately. Listing of items you sell in your signature is acceptable if it is
related to the topics of this list and is not the primary message in your post.
o Off Topic Posts. This is a large list and we are very serious about keeping it
focused. Off topic posts are very unwelcome. If a moderator declares a
particular discussion as off topic it is to be dropped immediately. Any
discussion or comments regarding the decision are to be handled off list to the
moderators at CAD_CAM_EDM_DRO-owner@yahoogroups.com

Here is our philosophy on determining on and off topic subjects.
We have to make a division somewhere or almost anything can be construed as
being a CNC topic. The general decision is that if the item would have no
meaning if you removed the CNC part it is on topic. On the other hand if the
answer is identical without the CNC in the question it is not an appropriate
topic. As an example if you ask "how do I machine Delran on my CNC machine?" it
is off topic as it is really a general shop question. Machining Delran on a CNC
machine is no different than machining it on a manual machine. If the question
is "Will Delran work as a good split nut on my home designed CNC router ?" that
would be on topic as it is specific to CNC as the wear and acceptable backlash
are different than on a manual machine.

Off topic posts are a big deal with a list the size of the CCED. If every member
asked an off topic question even once a year that is over 8 a day. Can you
imagine the list traffic that would be devoted to non-related issues if 8 were
asked a day when you figure in the replies. If you wish to post on unlimited
subjects go to:   rec.crafts.metalworking or
http://www.metalworking.com/news_servers.html
http://groups.yahoo.com/group/jobshophomeshop

We try to apply an even measure in maintaining order on the list. Basically it
works like this: Blatant violation of well know rules get immediate moderation
or banning (reserved for spam, porn, software piracy, unsociable behavior).
Obvious violations that are questionable in intent (they may have though it was
OK) get stern warning. Pushing the envelope, but not clearly off topic gets not
so subtle reminders.

How we interpret the list rules in regard to product promotion on the list:
A onetime announcement regarding a product is acceptable if it is a new item or
product line that would be of interest to the list members and is within the
scope of the items we allow discussion on. This would meant that an offering
similar to the example #1 for drives, motors, machines, CAD/CAM/Controller
software, and other topic related items would be welcome. A similar post for
crack software, cutters, oil, air lines, pills, potions, porn, vacations, get
rich quick, etc. would not be acceptable as they do not deal with items that are
considered acceptable topics for this list.

We do not allow infomercial only posts beyond the onetime announcement spelled
out above and in example #1. This is not to say that the list can not be used
quite successfully for the promotion of a topic related product. What we do
allow is the posting of product promotion in the signature when replying to or
posting on an acceptable topic. So, if you want to participate in a discussion
and share your knowledge of the topic at hand you are welcome to include a
signature reminder or your company and product. Additionally, you are always
welcome to recommend your products when it is a suitable solution for a posters
question. An example would be if someone asks about suitable widget for their
CNC conversion. You would be more than welcome to suggest your company product
and explain why it would be a good choice if it is an acceptable product for
this application. The final acceptable way to use the list is if you are willing
to offer a special price to list members. This is the only context in which a
commercial only post is allowed beyond the initial post and is only acceptable
if it truly is a special deal, is honestly restricted to list members, is not
your only postings to the list (in other words, it is a benefit of being a
supporter of the discussion on the list), and is not done on too frequent a
basis (one a month would be about the most). It is the right of the moderator
team to determine if this type of post is being abused and delete or reject any
post they view as not conforming to the spirit of the group.

Example #1
Topic: New CCED Topic acceptable item announcement.

Dear group,
We are Hyper Co and we are now offering/selling/producing a revolutionary XYZ
widget item. This item will revolutionize hobby CNC with its ability to jump
higher, move faster, be more intuitive, etc than anything offered by our
competitors.

The details on the XYZ widget are as follows:
Blah, blah, blah.

XYZ Widget sells for $$$ and is available directly from Hyper Co of from the
Captive Widget Web Co site at www.CaptiveWidget.com

If you have further questions about the XYZ Widget please feel free to contact
us off list at sales@...

Thanks,
Maggy Marketer
Hyper Co
Anywhere USA


NOTICE:   ANY AND ALL MESSAGES POSTED TO THIS GROUP ARE CONSIDERED PUBLIC
DOMAIN, IF YOU DO NOT AGREE; DO NOT POST TO THIS LIST.   POSTING TO THIS LIST
WILL BE CONSIDERED AS ACCEPTING THIS CONDITION.   NO EXCEPTIONS FOR ANY MEMBER

Check out Dave's web page.
http://www.buildyouridea.com/cnc/spindle_05/spindle_05.html  About a
clear a discription as you'll find any where.

Need some bearings?  Try:  http://cgi.ebay.com/ws/eBayISAPI.dll?
ViewItem&item=7550420248




--- In CAD_CAM_EDM_DRO@yahoogroups.com, Abby Katt
<cncgroupnospam@...> wrote:
>
> Hi All,
>
> I'm looking at making my own belt/pulley based spindle speed
multiplier
> for my CNC mill, and was wondering what bearings I should be
using? The
> milling cutter itself will be quite small (1/8" or 3mm), and high-
speed
> so it doesn't need to be too-beefy.. the reason I ask is that
angular
> contact bearings are quite a bit larger than regular sealed-race
> ballbearings - and more expensive, I'm not sure though if the
price
> warrants the extra expenditure - a ballbearing based spindle would
be
> more streamline and easier to make...
>
> I've seen some fantastic pages of people (on this list) who've
made
> their own fantastic spindles - so this is why I ask. :)
> I intend to "open source" the design when it's done, and post all
plans,
> drawings, 3D models, construction pics, and a how-to guide on my
website....
>
> Thanks for any advice,
> Regards,
> Abby
> (http://www.silverkatt.co.uk)
>

In a message dated 11/30/2006 3:15:50 P.M. Eastern Standard Time,
cncgroupnospam@... writes:

Hi  All,

I'm looking at making my own belt/pulley based spindle speed  multiplier
for my CNC mill, and was wondering what bearings I should be  using? The
milling cutter itself will be quite small (1/8" or 3mm), and  high-speed
so it doesn't need to be too-beefy.. the reason I ask is that  angular
contact bearings are quite a bit larger than regular sealed-race
ballbearings - and more expensive, I'm not sure though if the price
warrants the extra expenditure - a ballbearing based spindle would be
more streamline and easier to make...

I've seen some fantastic  pages of people (on this list) who've made
their own fantastic spindles -  so this is why I ask. :)
I intend to "open source" the design when it's  done, and post all plans,
drawings, 3D models, construction pics, and a  how-to guide on my website....

Thanks for any  advice,
Regards,
Abby
(http://www.silverkatt.co.uk)



Abby:

When you say "high speed" what rpm range are you looking at?  If it is  up in
the 20,000 rpm range like many router spindles you will need special
bearings that do NOT have metal inner bearing retainers and also using thrust 
type
ball bearings would be recommended.

Hope this helps some.

Randy  Abernathy
4626 Old Stilesboro Road NW
Acworth, GA 30101-4066
E-mail:  cnc002@...

I furnish technical support, repair, and other related  services for your
industrial woodworking machinery. My background as Senior  Service Engineer for
the SCMI Group for nearly fifteen years with factory  training, combines with
my extensive background in electronics, mechanics,  pneumatics, electrical and
CNC machinery to offer you needed support for your  machinery. Services
include but are not limited to the  following:


[Non-text portions of this message have been removed]

Since Sargon is out of business, where does one find scales, adaptors
or information on converting other brand of scales that are compatible?
Thanks,
Ray Hill

I would think you want angular contact bearings to support the side loads
you'll encounter in cutting operations.  If you're just drilling, you may
not need them.

Doug


On 12/1/06, cnc002@... <cnc002@...> wrote:
>
>
> In a message dated 11/30/2006 3:15:50 P.M. Eastern Standard Time,
> cncgroupnospam@... <cncgroupnospam%40silverkatt.co.uk>writes:
>
> Hi All,
>
> I'm looking at making my own belt/pulley based spindle speed multiplier
> for my CNC mill, and was wondering what bearings I should be using? The
> milling cutter itself will be quite small (1/8" or 3mm), and high-speed
> so it doesn't need to be too-beefy.. the reason I ask is that angular
> contact bearings are quite a bit larger than regular sealed-race
> ballbearings - and more expensive, I'm not sure though if the price
> warrants the extra expenditure - a ballbearing based spindle would be
> more streamline and easier to make...
>
> I've seen some fantastic pages of people (on this list) who've made
> their own fantastic spindles - so this is why I ask. :)
> I intend to "open source" the design when it's done, and post all plans,
> drawings, 3D models, construction pics, and a how-to guide on my
> website....
>
> Thanks for any advice,
> Regards,
> Abby
> (http://www.silverkatt.co.uk)
>
> Abby:
>
> When you say "high speed" what rpm range are you looking at? If it is up
> in
> the 20,000 rpm range like many router spindles you will need special
> bearings that do NOT have metal inner bearing retainers and also using
> thrust type
> ball bearings would be recommended.
>
> Hope this helps some.
>
> Randy Abernathy
> 4626 Old Stilesboro Road NW
> Acworth, GA 30101-4066
> E-mail: cnc002@... <cnc002%40aol.com>
>
> I furnish technical support, repair, and other related services for your
> industrial woodworking machinery. My background as Senior Service Engineer
> for
> the SCMI Group for nearly fifteen years with factory training, combines
> with
> my extensive background in electronics, mechanics, pneumatics, electrical
> and
> CNC machinery to offer you needed support for your machinery. Services
> include but are not limited to the following:
>
> [Non-text portions of this message have been removed]
>
>
>


[Non-text portions of this message have been removed]

Hi Folks:
Does anybody know or uses a 5 axis CAM program. Could you sugest me
one?

Maxi
  __________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ˇgratis!
ˇAbrí tu cuenta ya! - http://correo.yahoo.com.ar

[Non-text portions of this message have been removed]

I got mine from http://www.digitalreadoutsystem.com/index.html
I got the jenix replacement and an adapter from them at a good price
Dan Mauch
low cost stepper and servo motors.
cases for Gecko drives
kits and assembled 3-4 axis drives
www.camtronics-cnc.com
www.seanet.com/~dmauch
----- Original Message -----
From: "smallhand27" <smallhand27@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, December 01, 2006 11:54 AM
Subject: [CAD_CAM_EDM_DRO] Sargon scales help


> Since Sargon is out of business, where does one find scales, adaptors
> or information on converting other brand of scales that are compatible?
> Thanks,
> Ray Hill
>
>
>
> Addresses:
> FAQ:  http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@...,
> timg@...
> Moderator:  pentam@... indigo_red@... davemucha@...
> [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS:  General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it
> if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop   I consider this to be a
> sister site to the CCED group, as many of the same members are there, for
> OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>

Mach3 is 6 axis.
Dan Mauch
low cost stepper and servo motors.
cases for Gecko drives
kits and assembled 3-4 axis drives
www.camtronics-cnc.com
www.seanet.com/~dmauch
----- Original Message -----
From: "Maxi Bertotto" <tiwanacote@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, December 01, 2006 1:20 PM
Subject: [CAD_CAM_EDM_DRO] 5 axis CAM program


Hi Folks:
Does anybody know or uses a 5 axis CAM program. Could you sugest me
one?

Maxi
  __________________________________________________
Correo Yahoo!
Espacio para todos tus mensajes, antivirus y antispam ˇgratis!
ˇAbrí tu cuenta ya! - http://correo.yahoo.com.ar

[Non-text portions of this message have been removed]



Addresses:
FAQ:  http://www.ktmarketing.com/faq.html
FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com

Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
List owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@...,
timg@...
Moderator:  pentam@... indigo_red@... davemucha@...
[Moderators]
URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO

OFF Topic POSTS:  General Machining
If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
http://www.metalworking.com/news_servers.html

http://groups.yahoo.com/group/jobshophomeshop   I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.

NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
bill
List Mom
List Owner


Yahoo! Groups Links

Maxi, there are several 5 axis CAM's out there, the bigger question is does it
provide code that has the kinematic offsets already in the code. Mach3 doesn't
[currently] do any type of kinematic offset for tool tip position. Let us know
if you find such a CAM program.

Jarrett

----- Original Message -----
From: Maxi Bertotto <tiwanacote@...>
Date: Friday, December 1, 2006 3:20 pm
Subject: [CAD_CAM_EDM_DRO] 5 axis CAM program

> Hi Folks:
> Does anybody know or uses a 5 axis CAM program. Could you sugest me
> one?
>
> Maxi
> __________________________________________________
> Correo Yahoo!
> Espacio para todos tus mensajes, antivirus y antispam ˇgratis!
> ˇAbrí tu cuenta ya! - http://correo.yahoo.com.ar
>
> [Non-text portions of this message have been removed]
>
>
>
> Addresses:
> FAQ:  http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> wanliker@..., timg@...
> Moderator:  pentam@... indigo_red@...
> davemucha@...  [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS:  General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop   I consider this to
> be a sister site to the CCED group, as many of the same members
> are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING
> THEM.  DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>

Dan,
Thanks for the help.
Ray Hill

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jarrett & Heidi Johnson
<hjjohnson@...> wrote:
>
>       What is the implications of building a power supply and
computer box
> together?
>
>        I've been tossing around the idea of building a dedicated
power
> supply box which not only houses the power supply but has the
needed VFD,
> G100, drives and spindle control interface card [ Digispeed?] as
well as
> any other little relay's etc. In addition to this I'd like to
mount my
> computer components right into this same box, MoBo, Drives, Video
card and
> have a touch screen and industrial keyboard. Is having all of this
in 1
> control box asking for problems? Should I be segregating the
computer
> components from the rest of the power supplies and VFD [ partition
the box
> to help eliminate RF and other gremlins into the works]?  I'd
beening
> thinking about just buying a bare bones kit from TigerDirect.ca
[or the
> like] and using the guts outta it, not the case [well maybe switch
out my
> old plane Jane case on my home comp. for the new one if it was
fancy].
>
>       Crazy?
>
>       Jarrett Johnson
>
I think you are asking for a long frustrating project.  The more you
can do to separate low level logic systems and high power circuits
the better.  It may work with no problem.  It may reset your
computer everytime the motors get under load or it may just wait
until you have expensive project 80% done and ruin it.

Grounding/shielding for minimum RFI and EMI interference is the
subject of entire books (I know because I have one).  It CAN be done
but it takes a lot of testing and understanding of how HF signals
are propagated across common connections and through the air.
Putting signals inside a cabinet helps keep them from transmitting
to the world.  Put two systems into the same case actually works
against you since the crosstalk in the cabinet is greater.

We could design a switching power supply in a few hours.  It then
took days to minimize the noise so the control electronics would not
pickup the PWM power spikes.

If you want to move the PC out close to the controller, consider
either having two separate metal compartments for each side.  You
power supply and motor drives in one side and your computer and
breakout card in the other.

Any wire over 12" long becomes an antenna for RFI.  Running them in
close proximity lets them more easily "talk" across.  The inverse
square law applies to RFI where the strength of the field is 1/4 if
the distance is doubled.  That is in open air. Closed insde
a "faraday shield" the calculations are much more complex

Hi all
I'am tunning a Rutex R2020 I've just recieved , I placed it on the
first slot on the motherboard (for x axis) the other two slots have
the two R2020 for y and z axis . The y and z axis were working
perfectly during the past month of testing .

The problem is that once I plug the encoder to the x axis drive the
three axis stops moving and if move they move with a very big error
(non stable ), if I un-plug the x axis encoder the two other axis ( y
& z) restarts moving perfectly.

I'am using quality type shielded encoder cables
I replaced the encoder and the encoder cable with the ones on the y
drive but the same problem.

I think there is a very big noise problem since it affects the y and z
axis .



Any help, Ideas ?

Did you check the motherboard. I still think that is where your fault is,
you have swapped everything else around, the motherboard is the only common
component to keep the fault occurring from the same place. As I said the
encoder output signal from the card seem to love to pick up noise from the
SPI interface, they are not buffered so that noise goes straight back into
the card.



My Rutex R2020 drives are now running like a dream, even after I blew one up
with my owne mistake and repaired it. Got some issue with the G100 and Mach3
we are trying to sort, but the servo's are looking good.



Regs Mark









   _____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of shadi_salhab_78
Sent: 02 December 2006 17:47
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Noise Problem



Hi all
I'am tunning a Rutex R2020 I've just recieved , I placed it on the
first slot on the motherboard (for x axis) the other two slots have
the two R2020 for y and z axis . The y and z axis were working
perfectly during the past month of testing .

The problem is that once I plug the encoder to the x axis drive the
three axis stops moving and if move they move with a very big error
(non stable ), if I un-plug the x axis encoder the two other axis ( y
& z) restarts moving perfectly.

I'am using quality type shielded encoder cables
I replaced the encoder and the encoder cable with the ones on the y
drive but the same problem.

I think there is a very big noise problem since it affects the y and z
axis .

Any help, Ideas ?





[Non-text portions of this message have been removed]

For anyone interested the following CNC / Laser components are avilable
for purchase on Ebay.

Synrad 10W CO2 Laser w/ power supply item# 290057506675

Anorad 11" Precision Linear Stage item# 290057508883
w/ ball screw

Anorad 9" Precision Linear Stage item# 290057510779
w/ ball screw (2 available) item# 290057511529

Kollmorgen Servo Amplifier item# 290057514265
Servostar CD CE06250

Rotary Table w/ Direct Servo Drive item# 290057517281

Please go to my photos section : Aunderdog's projects

Hey all I had posted about a week ago my new project for a column
support system that also acts as a tramming system. It worked very
well but had a few shortcomings. It was mounted directly to the
bench which is a plywood top. It had alot of flex. This made it
harded to use for tramming than it should have been.

So I broke it all down and revamped it and took the opportuninty to
do what I had been wanting to for awhile.

The mill is now on a flat sturdy base plate (1" thick yahoo-luckily
they were out of 3/4" and upgraded me for no charge) and the
supports are intgrated and the whole thing is as solid as a rock.
The base is mounted with rubber pads to the bench to reduce
vibtration and allow it to compensate for any uneveness in the table.

Once everything was installed it took all of 5 minuted to tram it in
whithin .001. No percievable movement when you push the column by
hand now and it does not go out of alignment when you do so. Which
is one of my inspirations for this project in the first place.


Also included are photos of the fourth axis installed.

Time to start making chips again.....yay

Next is to add a blower or vac system to the mill head to evacuate
swarf.


Any comments are welcome. Thank you for looking.

>>
> I think you are asking for a long frustrating project.  The more you
> can do to separate low level logic systems and high power circuits
> the better.  It may work with no problem.  It may reset your
> computer everytime the motors get under load or it may just wait
> until you have expensive project 80% done and ruin it.
>
> Grounding/shielding for minimum RFI and EMI interference is the
> subject of entire books (I know because I have one).  It CAN be done
> but it takes a lot of testing and understanding of how HF signals
> are propagated across common connections and through the air.
> Putting signals inside a cabinet helps keep them from transmitting
> to the world.  Put two systems into the same case actually works
> against you since the crosstalk in the cabinet is greater.
>
> We could design a switching power supply in a few hours.  It then
> took days to minimize the noise so the control electronics would not
> pickup the PWM power spikes.
>
> If you want to move the PC out close to the controller, consider
> either having two separate metal compartments for each side.  You
> power supply and motor drives in one side and your computer and
> breakout card in the other.
>
> Any wire over 12" long becomes an antenna for RFI.  Running them in
> close proximity lets them more easily "talk" across.  The inverse
> square law applies to RFI where the strength of the field is 1/4 if
> the distance is doubled.  That is in open air. Closed insde
> a "faraday shield" the calculations are much more complex

Thanks for taking the time to reply and bring questions to light.

Reading your note, it would appear I have a bit of a excercise on my hands
:-). If I was to build my entire box so as to have each level of
control/power/function in its own partitioned section, would this help?
What I wanted to do was have the computer part, the mobo, drives, keyboard,
screen etc all in the top compartment, the screen is one of those
industrial flush panel mount touch screens [not sure if touch screen's are
worse for RF emissions or not]. Then below that is the control compartment.
The control compartment would house the G100, and motor drives. The
compartment below that would be the power supply compartment, it would have
the motor power supply as well as [possibly] the computer UPS. Then the
final compartment below that would house the VFD. Every single power,
control or sensor wire in every compartment will be sheilded and star
ground to a single point [most likely in the power supply compartment].
Each 'compartment' would be seperated from its neighbouring compartment by
a 20ga steel panel, these panels would be as tight fitting as is possible,
however this would be openings as needed for cables to pass through.

Does this still sound as bad as first thought?.

The reason I'm going to all this is because I want a control box which
moves along the machine. My machine is 20ft long and i'd like to be able to
position the control box anywhere along the length of the unit just by
sliding it down. The entire box will ride on its own set of rails mounted
to the outside of the machine. This should save me from walking 20-40 feet
each time I want to access the control. I do plan to use a pendant, but
that doesn't preclude someone from having to move back and forth to the
control unit.

Totally open to suggestions! [and thank you to all who have already posted]

Sincerely
Jarrett

Mark,
I've checked the mother board it has no fault (seems) , I removed the
pullup resistors as Tom told me ,it solved part of the problem put it
still there !

Shadi





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mark Vaughan" <mark@...> wrote:
>
> Did you check the motherboard. I still think that is where your
fault is,
> you have swapped everything else around, the motherboard is the only
common
> component to keep the fault occurring from the same place. As I said the
> encoder output signal from the card seem to love to pick up noise
from the
> SPI interface, they are not buffered so that noise goes straight
back into
> the card.
>
>
>
> My Rutex R2020 drives are now running like a dream, even after I
blew one up
> with my owne mistake and repaired it. Got some issue with the G100
and Mach3
> we are trying to sort, but the servo's are looking good.
>
>
>
> Regs Mark
>
>
>
>
>
>
>
>
>
>   _____
>
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of shadi_salhab_78
> Sent: 02 December 2006 17:47
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Noise Problem
>
>
>
> Hi all
> I'am tunning a Rutex R2020 I've just recieved , I placed it on the
> first slot on the motherboard (for x axis) the other two slots have
> the two R2020 for y and z axis . The y and z axis were working
> perfectly during the past month of testing .
>
> The problem is that once I plug the encoder to the x axis drive the
> three axis stops moving and if move they move with a very big error
> (non stable ), if I un-plug the x axis encoder the two other axis ( y
> & z) restarts moving perfectly.
>
> I'am using quality type shielded encoder cables
> I replaced the encoder and the encoder cable with the ones on the y
> drive but the same problem.
>
> I think there is a very big noise problem since it affects the y and z
> axis .
>
> Any help, Ideas ?
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Jason,

Looked in the photo's section and could not find "underdog"???

George


-----Original Message-----
From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jason
Sent: Saturday, December 02, 2006 5:49 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] New column support, base and fourth axis
added

Please go to my photos section : Aunderdog's projects

"Aunderdog" - its there - I just looked at it.

Regards,
Tony

At 07:45 03/12/2006, you wrote:
>Jason,
>
>Looked in the photo's section and could not find "underdog"???
>
>George
>
>
>-----Original Message-----
>From: CAD_CAM_EDM_DRO@yahoogroups.com
>[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jason
>Sent: Saturday, December 02, 2006 5:49 PM
>To: CAD_CAM_EDM_DRO@yahoogroups.com
>Subject: [CAD_CAM_EDM_DRO] New column support, base and fourth axis
>added
>
>Please go to my photos section : Aunderdog's projects
>
>
>
>
>
>Addresses:
>FAQ:  http://www.ktmarketing.com/faq.html
>FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
>Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
>Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
>List
>owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@...,
>timg@...
>Moderator:  pentam@... indigo_red@...
>davemucha@...  [Moderators]
>URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
>OFF Topic POSTS:  General Machining
>If you wish to post on unlimited OT subjects
>goto:   aol://5863:126/rec.crafts.metalworking or go thru Google.com
>to reach it if you have trouble.
>http://www.metalworking.com/news_servers.html
>
>http://groups.yahoo.com/group/jobshophomeshop   I consider this to
>be a sister site to the CCED group, as many of the same members are
>there, for OT subjects, that are not allowed on the CCED list.
>
>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING
>THEM.  DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>bill
>List Mom
>List Owner
>
>
>Yahoo! Groups Links
>
>
>

Is it the the "Photos" section? I can't find it either.

Thanks,
John

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Tony Jeffree <tony@...> wrote:
>
> "Aunderdog" - its there - I just looked at it.
>
> Regards,
> Tony
>
> At 07:45 03/12/2006, you wrote:
> >Jason,
> >
> >Looked in the photo's section and could not find "underdog"???
> >
> >George
> >
> >
> >-----Original Message-----
> >From: CAD_CAM_EDM_DRO@yahoogroups.com
> >[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jason
> >Sent: Saturday, December 02, 2006 5:49 PM
> >To: CAD_CAM_EDM_DRO@yahoogroups.com
> >Subject: [CAD_CAM_EDM_DRO] New column support, base and fourth axis
> >added
> >
> >Please go to my photos section : Aunderdog's projects
> >
> >
> >
> >
> >
> >Addresses:
> >FAQ:  http://www.ktmarketing.com/faq.html
> >FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> >Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> >Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> >List
> >owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@...,
> >timg@...
> >Moderator:  pentam@... indigo_red@...
> >davemucha@...  [Moderators]
> >URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> >OFF Topic POSTS:  General Machining
> >If you wish to post on unlimited OT subjects
> >goto:   aol://5863:126/rec.crafts.metalworking or go thru Google.com
> >to reach it if you have trouble.
> >http://www.metalworking.com/news_servers.html
> >
> >http://groups.yahoo.com/group/jobshophomeshop   I consider this to
> >be a sister site to the CCED group, as many of the same members are
> >there, for OT subjects, that are not allowed on the CCED list.
> >
> >NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING
> >THEM.  DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> >bill
> >List Mom
> >List Owner
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
>

Hi all,

I found it hard to buy (second hand) linear slide with enough rail
length sutitable for our project.  My idea is to keep the blocks and
machine my own rail. Has anybody done this before ? Any inputs will be
thanked.

Regards,

Horace.

Some big machines don't need high accuracy.

We make some machines where a mm error wouldn't bother us. We use 50mm thick
wall steel box section, mount it on a frame with bolts welded on the corners
so it can be shimmed, BUT it is mounted with its cross section at 45 degrees
to the frame bed. We then use 90 degree V rollers on our gantry, which is
20mm thick about 20cm square with four V rollers. It is very cheap and works
very well, the rollers do need to grip tight so there are some losses due to
drag. If there is an error out of true we just adjust the bolts and shims.
The main frame is bolted to the building on installation to get the rest of
it's rigidity.



May not be suitable for you but worth a thought



Regs Mark



   _____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Horace, T.L.Ho
Sent: 03 December 2006 12:57
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Linear slide with DIY rail



Hi all,

I found it hard to buy (second hand) linear slide with enough rail
length sutitable for our project. My idea is to keep the blocks and
machine my own rail. Has anybody done this before ? Any inputs will be
thanked.

Regards,

Horace.





[Non-text portions of this message have been removed]

Is it in this yahoo group?  I can't see it in the photos section either.

Dan


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "John Hansford" <kz1927@...>
wrote:
>
> Is it the the "Photos" section? I can't find it either.
>
> Thanks,
> John
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Tony Jeffree <tony@> wrote:
> >
> > "Aunderdog" - its there - I just looked at it.
> >
> > Regards,
> > Tony
> >
> > At 07:45 03/12/2006, you wrote:
> > >Jason,
> > >
> > >Looked in the photo's section and could not find "underdog"???
> > >
> > >George
> > >
> > >
> > >-----Original Message-----
> > >From: CAD_CAM_EDM_DRO@yahoogroups.com
> > >[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jason
> > >Sent: Saturday, December 02, 2006 5:49 PM
> > >To: CAD_CAM_EDM_DRO@yahoogroups.com
> > >Subject: [CAD_CAM_EDM_DRO] New column support, base and fourth axis
> > >added
> > >
> > >Please go to my photos section : Aunderdog's projects
> > >
> > >
> > >
> > >
> > >
> > >Addresses:
> > >FAQ:  http://www.ktmarketing.com/faq.html
> > >FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > >Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> > >
> > >Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > >Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > >List
> > >owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@,
> > >timg@
> > >Moderator:  pentam@ indigo_red@
> > >davemucha@  [Moderators]
> > >URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> > >
> > >OFF Topic POSTS:  General Machining
> > >If you wish to post on unlimited OT subjects
> > >goto:   aol://5863:126/rec.crafts.metalworking or go thru Google.com
> > >to reach it if you have trouble.
> > >http://www.metalworking.com/news_servers.html
> > >
> > >http://groups.yahoo.com/group/jobshophomeshop   I consider this to
> > >be a sister site to the CCED group, as many of the same members are
> > >there, for OT subjects, that are not allowed on the CCED list.
> > >

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Horace, T.L.Ho"
<skyfroghorace@...> wrote:
>
> Hi all,
>
> I found it hard to buy (second hand) linear slide with enough rail
> length sutitable for our project.  My idea is to keep the blocks and
> machine my own rail. Has anybody done this before ? Any inputs will be
> thanked.
>
> Regards,
>
> Horace.

Hi Horace,

what type of machine ?

Many people have used 80/20 for their machines.  I think it comes in
up to 20 foot lengths ?  maybe on 10??

The slides are not too hard to make, and not too expensive to buy.

you can buy a lenght, and then mount that on some larger structure for
support over the span.

Dave

Horace,

If its the round rails you are talking about, I would
think it would be easy to use the correct sized drill
rod or silver steel. However, I wouldnt dream of
trying to machine the "rectangular" rails with bearing
grooves!

Regards,

Brian





___________________________________________________________
All new Yahoo! Mail "The new Interface is stunning in its simplicity and ease of
use." - PC Magazine
http://uk.docs.yahoo.com/nowyoucan.html

Hi Mark,

Thanks for your inputs. Yeah linear slide shouldn't be too expensive
because people can think of many solutions and make them by
themselves. Box section beam is a good idea, but if we use it we
will have make blocks ourselves too.

Regards,

Horace.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mark Vaughan" <mark@...>
wrote:
>
> Some big machines don't need high accuracy.
>
> We make some machines where a mm error wouldn't bother us. We use
50mm thick
> wall steel box section, mount it on a frame with bolts welded on
the corners
> so it can be shimmed, BUT it is mounted with its cross section at
45 degrees
> to the frame bed. We then use 90 degree V rollers on our gantry,
which is
> 20mm thick about 20cm square with four V rollers. It is very cheap
and works
> very well, the rollers do need to grip tight so there are some
losses due to
> drag. If there is an error out of true we just adjust the bolts
and shims.
> The main frame is bolted to the building on installation to get
the rest of
> it's rigidity.
>
>
>
> May not be suitable for you but worth a thought
>
>
>
> Regs Mark
>
>
>
>   _____
>
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Horace,
T.L.Ho
> Sent: 03 December 2006 12:57
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Linear slide with DIY rail
>
>
>
> Hi all,
>
> I found it hard to buy (second hand) linear slide with enough rail
> length sutitable for our project. My idea is to keep the blocks
and
> machine my own rail. Has anybody done this before ? Any inputs
will be
> thanked.
>
> Regards,
>
> Horace.
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
<dave_mucha@...> wrote:
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Horace, T.L.Ho"
> <skyfroghorace@> wrote:
> >
> > Hi all,
> >
> > I found it hard to buy (second hand) linear slide with enough
rail
> > length sutitable for our project.  My idea is to keep the blocks
and
> > machine my own rail. Has anybody done this before ? Any inputs
will be
> > thanked.
> >
> > Regards,
> >
> > Horace.
>
> Hi Horace,
>
> what type of machine ?
>
> Many people have used 80/20 for their machines.  I think it comes
in
> up to 20 foot lengths ?  maybe on 10??
>
> The slides are not too hard to make, and not too expensive to buy.
>
> you can buy a lenght, and then mount that on some larger structure
for
> support over the span.
>
> Dave
>

Hi Dave,

Not that long, what I need is around 3-4 foot only. You can find
many of one foot long with nice blocks on eBay, this is why it came
up with the idea of DIY rails.

Regards,

Horace.

Hi Brian,

Not round but rectangular. Ye I aggree with you it should not be
easy to make them, the tolerance could be as small as 0.01mm only so
that blocks can slide on it nicely. Maybe we should make the blocks
too :)

Thanks for your input.

Regards,

Horace.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Brian Worth
<electromodeler@...> wrote:
>
> Horace,
>
> If its the round rails you are talking about, I would
> think it would be easy to use the correct sized drill
> rod or silver steel. However, I wouldnt dream of
> trying to machine the "rectangular" rails with bearing
> grooves!
>
> Regards,
>
> Brian
>
>
>
>
>
> ___________________________________________________________
> All new Yahoo! Mail "The new Interface is stunning in its
simplicity and ease of use." - PC Magazine
> http://uk.docs.yahoo.com/nowyoucan.html
>

Just to let everyone know, Dolphin CAD/CAM has been released to North
America. Great features, low cost and price is really low for a
limited time due to marketing and advertising of building the name.
The website is www.cadcamconsultants.net and I'd advise and hobby or
machine shop user to get it while it is what it is.

Just got mine in the mail last week. Still waiting for the license code ?????
Jim
On 12/4/2006 5:56:50 PM, thecadcamconsultants (thecadcamconsultants@...)
wrote:
> Just to let everyone know, Dolphin CAD/CAM has been released to North
> America. Great features, low cost and price is really low for a
> limited time due to marketing and advertising of building the name.
> The website is www.cadcamconsultants.net and
> I'd advise and hobby or
> machine shop user to get it while it is what it is.
>
>
>
> Addresses:
> FAQ:  http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe:  CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe:  CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner:  CAD_CAM_EDM_DRO-owner@yahoogroups.com,  wanliker@...,
timg@...
> Moderator:  pentam@... indigo_red@... davemucha@... 
[Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS:  General Machining
> If you wish to post on unlimited OT subjects goto:  
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you
have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop   I consider this to be a sister
site to the CCED group, as many of the same members are there, for OT subjects,
that are not allowed on the CC

[Non-text portions of this message have been removed]