I am having trouble getting G28 Home axes to work. I get the message "no axes with home switches defined". I checked other posts about the same message but...
OK, First off, which version are you using? Next, have you set "Home is Limit:" in General Config? Have you set limit switches in Config I/O IF so, un select...
Thanks Art, I am using v4.01 I have set Home is Limit in General Config. Port 10 is set to Home X switch. All my limit switches are daisy chained together...
Dennis, If you go to the files section, under the users 4.01 folder, you can download my version TCNC_V401enhanced.zip There is a pdf file that explains the...
Thanks Art, I downloaded your enhanced zip file and put it on my machine. I also separated out my switches so X is on port 10, Y on 12 and Z on 15. The...
Do you have backlash compensation enabled? If so, I found that problem also! Disable backlash compensation. I never got around to trying to fix that as I...
Thanks Art, that's what it was. I don't think I can make a mill with no backlash, even Bridgeport has .005. I will just turn off the limits when I'm using...
I don't think this is a TurboCNC issue but maybe someone can help me. I an using a much modified chinese TB6560 driver board and I have used it with no...
Can you switch the X axis inputs to one of the other axes to confirm that the problem is with the board's Y and Z? Does changing the acceleration settings...
As I said in my post all the motors work on the X axis and dont work on the Y and Z. I tried setting the speed and acc to the same setting that work on the X...
Can you back to your original settings on all motors and verify things are as they were? Then modify the settings on one axis only and determine the new...
Dennis, Please explain your logic in thinking that no microstepping will improve accuracy. For my machines microstepping is not about increasing or decreasing...
I am using a 15A 24V supply. The motors are all NEMA 23 173 oz.in on X and Y and 465oz in on Z. They work fine at 1/16 step so they should have plenty of...
I see what your saying, I have not tried that but I doubt if the signal from the computer is the problem because both Y and Z work fine if I set them to half...
When I go back to the original settings everything works fine, if I go to half stepping all axes everything works fine, if I go to full only the X axis works....
In the real application of small CNC machines the benefit of microstepping (half stepping, etc.) is almost always a reduction in the nasty effects of motor...
Hi Dennis, I've been following the thread and I agree with Daniel about the need, or not, of micro-stepping. However, I am curious as to why this set-up...
Dennis, I also forgot to mention something regarding the reference you provided for microstepping inaccuracies. Although their analysis is correct the errors...
Thanks for all the advice, you have all given me a lot to think about. I looked at ways to improve accuracy after I ran into some accuracy problems running...
I think you need to reduce the start frequency and acceleration in turbocnc to match the change in microstepping. Otherwise you'll be trying to start the...
In a message dated 12/16/2012 9:23:13 P.M. Eastern Standard Time, titanium@... writes: Although their analysis is correct the errors associated with ...
Can anyone suggest some free-to-use (or very cheap) CAM programs that generate 3D toolpaths based on a 3D model (such as an STL file)? In the past I've used...
If you have a brushed DC spindle motor you could also be picking up some RF interference from a sparky motor. ... Way back when I first started in home CNC I...
