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Dan, did you find a 2deg stepper? if not I have some. Now you have solved the tool changer for your lathe design one for the verticle mill???????? Brian, Ont, Can. ps what plastic parts do you want to

I am currently working on two new projects. 1. An automatic tool changer for my CNC lathe. 2. An injection molding machine to make plastic parts. On the tool changer I bought a heavy duty tail stock

That would be great about putting the converter on your web site. I dreaded having to convert excellon drill files to G code and add the Z up and down. Even cut and pastig is inefficient.. Especially

I caled some time ago and US digital Tech support said it had to do with HP not making a encoder head that would work. This sounds dumb but thats what they told me. Dan

Per the recent request for lurkers to de-lurk: I recently received some linear components from Bill Scalione, and now have to decide what kind of machine to build with them. I have two sets of 1"

This may not be a practical solution for your radius problems, I'm just learning about this stepper motor cnc stuff myself, but how about adding a rotary table to your program "Z"? Axis? Tracey By

[What a good idea! I second the motion. I've been trying to follow this discussion, but this would help put it in perspective. I think there's a market for a CD that would install realtime linux and a

Tim Goldstein wrote: It really doesn't matter. this is the ABSOLUTE position. You generally never work in absolute positions, except maybe when calibrating permanent fixtures onto the ma

Tim Goldstein wrote: OK, I'll take a look at it and see how badly it looks as a .gif or whatever. You won't believe how scrambled the original printed document was. If the henscratched corrections

Tim Goldstein wrote: Yeah, but it has to match to within .00000001" or so! Which is crazy, since my machine only has resolution of .000025" on the fin

of at

It's really quite simple. I chased this waskelwy wabbit down a few months back, meself, so hopefully I know of what I speak. The SENSORs that US Digital relies on, namely those made by HP, are

I hooked up my home switches for the lathe and tried the function out. Over all it works just as Jon described. HOMING_POLARITY controls the direction the axis moves when you hit the home button and

Jon, If you want to scan it I have an FTP server available to me that we could put the images on. Tim [Denver, CO]

At the risk of replying to myself I think that such a program would need to check arcs and for erroneous ones in IJ format it could suggest solutions that move the center point keeping either the

for I drew this in CAD and it's an 1/8" arc, but I think there must be some teeny, tiny error at maybe the .0000000000000x level. I'll ask Fred how we can verify code produced by CAM systems and what

Hi Tim, From my understanding it should be possible to use more than one parallel port. Mo

Matt & Jon, Thanks very much for the explanation of what I, J, and K mean in circular moves. I think I see the light and hope it is not a train!! Had a little bit of a chance to play with using I & J

Dan Mauch wrote: I generate plot files and drill files from PCB CAD software. I used to use Accel's Tango, but I'm using Protel's Adv Pcb for windows, and using Protel 98 at work. Each has pluses

Dan Falck wrote: I don't have my home or limit switches hooked up, either. But, I went through this with Fred (or maybe Matt) some time ago, and think I understand it. The home switch must be set