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multimachine · Open Source machine tools

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  • Members: 7019
  • Category: Crafts
  • Founded: Aug 17, 2004
  • Language: English
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Messages 9265 - 9295 of 17156   Oldest  |  < Older  |  Newer >  |  Newest
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9265 Eric Smith
white_knight... Send Email
Jun 1, 2009
8:05 am
If all you want is to make the points for drilling(say to turn between centers) of rough stock... that design would work fine. I suppose. A good, quality,...
9266 Eric Smith
white_knight... Send Email
Jun 1, 2009
8:11 am
One serious downside to using water... RUST. Most cheap tire/rim packages you're gonna find will be steel(better for resisting the peening of steel shot...
9267 Ian Newman
ian_new Send Email
Jun 1, 2009
9:18 am
Hi,   Alignment of the tailstock centre would be easy to achieve:   Hold a boring tool in the lathe chuck at the headstock.   Mount the tailstock between...
9268 Ian Newman
ian_new Send Email
Jun 1, 2009
9:24 am
Hi,   You can make a simple and cheap rack by welding a length of roller chain (the drive chain from a bicycle or motor bike would do) along the place where...
9269 Bruce Bellows
snookered1ca Send Email
Jun 1, 2009
12:49 pm
I would also check to verify that the chuck jaws are square to the bed. Then a boring should be parallel to the bed. Bruce ... From: Ian Newman To:...
9270 Bruce Bellows
snookered1ca Send Email
Jun 1, 2009
12:52 pm
Any fluid will prove problematic to control. With a solid wheel a clutch can be added and a brake if necessary, even a crude one such as a steel contact band...
9271 Charles Mitchard
charlesmitchard Send Email
Jun 1, 2009
1:01 pm
Could not a couple or more flywheels from say a truck engine be used? Bolt a few together to get the total mass required? Leave the ring gear on and maybe that...
9272 keith gutshall
drpshops Send Email
Jun 1, 2009
3:01 pm
Hello David  Here is how I see the fitting together.  If you put the 3/4 ways on the block and the carriacge plate on them.  That only leaves 3/4 in to fit...
9273 Jeff
jhan5en Send Email
Jun 1, 2009
3:11 pm
Bruce You could use a bent boring bar and an uncentered 4 jaw chuck. It doesn't matter because the cutter rotates at a single point in space. The tailstock...
9274 Ian Newman
ian_new Send Email
Jun 1, 2009
3:12 pm
Hi Bruce,   I used this method when I built my first lathe - a watchmakers size lathe using some T section angle iron as a bed.   I made two temporary...
9275 Pat Delany
rigmatch Send Email
Jun 1, 2009
3:25 pm
How about combining ideas from Charles and Bruce by bolting a brake drum to the back of a flywheel using a simple steel band on the outside of the drum and a...
9276 Pat Delany
rigmatch Send Email
Jun 1, 2009
4:56 pm
How about having just a worn out truck brake drum on a shaft with 2 pillow blocks. Use the outer surface of the drum for a band type brake and also a surface...
9277 keith gutshall
drpshops Send Email
Jun 1, 2009
5:08 pm
Hello Eric A center finder is a most useful tool for around the shop.  It works good for round stock to find the center.  I use it on square stock also.  It...
9278 Greg and April
gregh80915 Send Email
Jun 1, 2009
5:25 pm
I have a old air horn compressor ( small vehicle ) that I'm going to use to pressurize the fuel tank ( and old propane tank ), to feed the fuel to the furnace....
9279 Pat Delany
rigmatch Send Email
Jun 1, 2009
7:59 pm
How about mounting the brake drum on the back of the block using a piece of pipe the size of the cylinder bore. Pat...
9280 Darwin Wandler
darwinwandler Send Email
Jun 1, 2009
8:06 pm
I just have to respond. As usual US insurance and private interests lie to it's citizens about reality. No one that needs life threatening surgery is delayed. ...
9281 keith gutshall
drpshops Send Email
Jun 1, 2009
8:44 pm
Hello Pat  A tranportable MM lathe??  I think is is a do able, a smaller ,simple machine that is movable.  Look at the new photo # 100-0086 . It is all on...
9282 Pat Delany
rigmatch Send Email
Jun 1, 2009
9:48 pm
what folder is it in Keith?...
9283 Darwin Wandler
darwinwandler Send Email
Jun 1, 2009
10:08 pm
I would like to apologize to the group for my rant. I would like to ask one question that will supersede all misinformation. Which would you rather have? A...
9284 keith gutshall
drpshops Send Email
Jun 1, 2009
10:22 pm
Hello Pat  The photo is in drp shops 1 folder.  the last two photos in the 2nd row down. photo 7-8 in folder.    Keith Deep Run Portage Back Shop " The...
9285 David LeVine
sirdave144 Send Email
Jun 1, 2009
10:22 pm
... Keith, the leadscrew and nut only need to sit below the gap. A heavy steel block can transfer the movement. We are only talking a 3/4" x 2 " x 2" block...
9286 David LeVine
sirdave144 Send Email
Jun 1, 2009
10:25 pm
... Also consider big disk brakes. One hell of a lot of cast iron and rated for well over 1,000 RPM, if memory serves. -- David G. LeVine Nashua, NH 03060...
9287 Ian Newman
ian_new Send Email
Jun 1, 2009
11:21 pm
Hi, Some things to think about when using gears from bicycles: I think most bike gears give a total range between highest gear and lowest gear of between 2 to...
9288 Pat Delany
rigmatch Send Email
Jun 2, 2009
1:49 am
Thanks Ian I had in mind to power the machine by some kind of a sprocket attached to a 10 speed hub. I was hoping for an easy way to get a 5 to 50 rpm lathe...
9290 keith gutshall
drpshops Send Email
Jun 2, 2009
3:02 am
Hello David  I am thinking we are two different pages.  Pat is talking about bolting the ways flat down on the block,with no  riser bar. That would leave...
9291 Ian Newman
ian_new Send Email
Jun 2, 2009
6:18 am
Hi Pat, I think that you are right about belt drive - if it comes down to it, it is quite simple to make vee pulleys and round rope can be used in the drive if...
9292 Jeff
jhan5en Send Email
Jun 2, 2009
6:26 am
Pat The old flat belt lathes had a massive amount of weight between the two bushings that were spread as far apart as possible. It was all this weight that let...
9293 Charles Mitchard
charlesmitchard Send Email
Jun 2, 2009
12:11 pm
... would be able to cope with quite large power transmission situations, but the gear assemblies designed for bicycles would be quite lightly built. I build...
9294 Pat Delany
rigmatch Send Email
Jun 2, 2009
4:51 pm
A picture is in a new folder "1 Bike powered MM". Explanation: The machine would have only 2 speeds (slow and very slow) that are selected by moving a chain...
9295 Lance
crashbone123 Send Email
Jun 2, 2009
5:23 pm
Complete except for steady rests. Has QCGB, 5" 3 jaw and 6" 4 jaw Contact me off-list for the seller's phone number. Unit located near Buffalo, NY USA lance ...
Messages 9265 - 9295 of 17156   Oldest  |  < Older  |  Newer >  |  Newest
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