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...
CAD_CAM_EDM_DRO@yahoo...
Sep 1, 2008 9:02 am
95608
Thanks for the reply Martin, I'll try this out when I get a break from work next. The MPG is only about 10 inches from the breakout board. It actually works as...
... some very nice stepper motor stages. ... Take a look at the Gecko G540. Uses parallel port, not USB, but it's a plug & play self-contained 4-axis,...
Has anyone used a Compumotor SM233 series servo motor with an IDC B8961 indexer? I am having a bit of trouble setting the configuration on the controller using...
Hi Glen: If using a breakout baord that takes 3.5 volt signmals, you need nothing, just ignore the A- and B- pins and hook up A+ and B+ .. Its nice to have...
Hi to all, I have a new 4th Axis Indexer program for Drilling and Milling XL Timing pulleys using Mach3 Mill at: http://www.cad2gcode.com/pulley Take a look. ...
My highschool science club is the proud owner of a couple VEX kits - erector sets with brains. We are thinking of making a CNC project with this VEX - more as...
Thanks for the comments. It looks like I am trying to fit a round peg in a square hole, maybe?? I'm interested in VEX stuff because we have it and we have a...
... I have a new revised Timing Pulley program for those who require Metric. Plus I added a few more things to help those who are just starting in CNC that...
... VEX would be an excellent choice for making something like a pen plotter. The controller with it is more than capable of the job, much more so than a...
We have VEX motors too, not just servos, so we can do multiple revs. We also have optical encoders - not quadrature, and 4 degree resolution. Curious about...
Hi Chuck, " Am I getting from you that the controller and C might not fit CNC use?" Not at all. I am glad you asked, so I can clarify. If you are happy with...
Hello all. I am getting rid of some Servo Motors that I had purchased 3 years ago from Jeff Davis with the intention of retrofitting my Mill/Drill. Well time...
her is a pdf on linear and circular interpolation that may be of some use <http://www.ieor.berkeley.edu/~goldberg/pubs/XY-Interpolation-Algorithms.pdf> chris ...
Completely acceptable, bill List mom In a message dated 9/14/2008 11:42:55 P.M. Mountain Daylight Time, rob@... writes: I hope this list mom finds this...
An associate of mine has a CNC'd Bridgeport for sale in south western Florida. It is stored in an air conditioned building and he would like to move it before...
Would anyone have any information on adding a bevel feature to a cnc plasma cutter table. We need this feature to assist starting the plasma arc when cutting...
Hi guys, I have a problem I've been working on for several weeks now and I need any help I can get. I appologise in advance long post but I'll try to cover...
Hi Jon, Thank you for taking the time to read it all AND answer, I appreciate it! ... It's an AVR chip and I think it's interrupt driven. The stated ...
... Ahh, that's very interesting, but I don't think speed has anything to do with it. I think it is noise. ... VERY unlikely. An awfully complicated chip,...
... As another option, try powering the encoder with a battery supply (9V battery through a 7805 with 1uF tantalum or MLCC caps on both input and output) and...
David G. LeVine
dlevine144@...
Sep 24, 2008 5:44 pm
95631
Hi Jon, hi David, *********************************** Ahh, that's very interesting, but I don't think speed has anything to do with it. I think it is noise. ...
Sounds to me like a ground loop problem, and a significant one since it would exceed the limits of the differential encoder. Trouble is, such problems are a...
You say: "USDigital recomends the 26C32 receiver while the HP-UHU has the SN75115... big difference?" Yes there is quite a difference, the 26C32 is an RS422...
... Well, it was certainly worth a try..... ... It's not the motor, since TWO other encoders work, up the the speed limit. ... Interesting. I'd expect the...
Have you checked with an Ohm meter that all shielded cables are grouned at only one end? If there are any unused conductors in any of the encoder cables, they ...
Hi guys, Thank you for all the advice, I'll mix some comment here... First, the termination is not in series with the encoder-lines, it is one 120ohm resistor...
