Ian & David, I'm going to drop a couple of my own $.02 in here. Ian, if you mean precision is required to do anything, you're just flatly wrong. Watt's steam...
I have two large motors (about 2+ HP) that were discarded by my gym. They seem to be in good shape, so I'm not sure why they were replaced. However, they are...
THere are tons of blogs, forum and threads discussing the conversion of treadmill motors to run all kinds of shop tools. I did a quick google search and...
... On the treadmill, they were probably set up with a VFD (Variable Frequency Drive), a device which converts single phase to 3 phase and changes frequency....
Great job!! Thanks again and again Dave. I'm still working on the Make post. The software is not written to make it easy to list alternative methods of doing...
Hi Group I have looked at the drawing for the lathe, The concrete might be fine for ia machine. The big problem is getting the parts in alinement. The are too...
Hi all Yesterady some colleagues of mine told me that there are some kind of resine-type concrete that is very strong, is not srinking at all.They cost...
Ease of alignment has always been the main consideration. A carefully held spacer can be used to set the distance between the ways. A piece of float glass...
I have used and made a few rotary converters in the past using single phase 220V. The US Farm Bureau (or other agency) used to publish a pamphlet on making...
dear friends, it is used. appears to be from an industrial production setting. is defective should be thought of as parts horse. and sold. regards, ron w h ...
Hi Thi is an other round ways old lathe: http://tiny.cc/6q0ts Seems that it was common practice construction style in light-way lathes.And these ways are not...
Hi Costas Unsupported round ways are a terrible idea (I think). Supported ways are a different thing altogether because you get a lathe bed that can be...
... Actually, they aren't, but they must be massive and will flex and ring if not massive enough. Supported round ways have two HUGE advantages: They can be...
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Jan 5, 2012 7:22 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the multimachine group. File : /MM cost...
for smaller machines the round ways (better to have one beefy round bar IMHO) aren't too bad. The Unimat had other problems. That lathe looks to be at least a...
I suggest you read about the original Yeomans design. The projectiles had a finished weight of over 3200 pounds and his round ways were only supported in the...
Dave A spread sheet about materials and prices would be wonderful. I don't know how to answer questions about costs since used stuff prices depend on where you...
 I'm not against them Pat. On larger lathes, or even on say this beat up Prazi SD-300 I have (haven't even used it yet), I would guess some supports would be...
... You are going to need to be a bit more specific about this. Somewhere between $20 and $3,000 depending on how much you plan to do and how much scrounging...
Very well said Dave! I think I earlier mentioned my shock at the increase in ENCO prices. Making your own stuff is going to be the only choice for a lot of...
Hi I had hoped that the very restricted Makezine project format would produce a good pdf. I thought that I had seen a mention of pdf file output but I can't...
An other problem rises too if we are speaking about round ways supports. It is sure that tese supports canot be angle iron, but some kind of machining must be...
Hello Costas, I do not think the support needs to be perfectly flat. Imagine the edge of the support as a series of mountains and valleys. The differences in ...
HI Shannon
The supports under the ways will work for the vertical forces in the machine.
 I think he is asking about the horizontal forces on thr ways?
 DId...
Good morning, Keith, I did not. But, I do not think there would be a pure horizontal force imparted by a rotating work piece. There would be an angular force ...
Hi Shannon, If there are "angular forces" these can be resolved into a vertical component and a horizontal component which is what Keith is referring to -...
