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Messages - Geoff 330

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1
General Mach Discussion / Re: Motors keep adding steps
« on: March 12, 2018, 12:10:56 AM »
Thanks, I'll do some research and see what I think will work best

2
General Mach Discussion / Re: Motors keep adding steps
« on: March 11, 2018, 11:41:12 PM »
I am not at building circuit boards.  I am completely new to CNC.

3
General Mach Discussion / Re: Motors keep adding steps
« on: March 11, 2018, 09:46:18 PM »
Yep, 3.3 volts.  The Bob has a USB input for power and is hooked up but does not seem to be doing anything.  Any suggestions.  At this point I don't know where to go.  Another new parralel card? Diagnostic for the usb?  Separate power source to a better Breakout board?  I'm open.  Just want to get this working.

4
General Mach Discussion / Re: Motors keep adding steps
« on: March 11, 2018, 09:05:22 AM »
Finally got a chance to try some things with no change in problem.  The motors won't move if I uncheck the active lows in the ports and pins.   The set up I followed was for my Bob.  It is a cheapo sainsmart 5 axis.   Joe's, how would I determine what my volts are?  My parralel port card is new and I specifically checked to see if it was 5V when I bought it but did not test it. There is a 5v indicator light on the breakout board that is lit but seems dim.

5
General Mach Discussion / Re: Motors keep adding steps
« on: March 08, 2018, 08:17:36 PM »
Thanks for the response.  The motors are not grinding and jog just fine.  I just slowed the acceleration and velocity down with no change in the problem.  It seems to not move in the negative direction while running gcode.  I end up with my z axis all the way up and the xy diagonally off the work piece. 

6
General Mach Discussion / Re: Motors keep adding steps
« on: March 08, 2018, 03:31:07 PM »
After watching programs run it appears that it is not completing steps. Several times the motors are not moving when they should be.  When the next line of code starts it is not in the right position for that line. Not sure how to fix that.

Any help would be appreciated.

7
General Mach Discussion / Motors keep adding steps
« on: March 08, 2018, 07:28:33 AM »
Obviously new to this but I have been trying to understand it all.  I am at the got road runner to load and cycle though the program stage but the machine appears to be adding steps for all three axis.  I did use the calibration and it is moving the proper distance through that, but it does not fix the problem.  It just keeps working diagonally up to the corner, way off the piece.

 It's been a long process to get this up and running.  I bought an eBay CNC machine that ended up having a bad breakout board.  I put a new board in and wired it (after lots of videos) and it seems to do everything it should but when I actually run it, it trails off.  I have most likely done something I shouldn't have but can't figure it out.  As my father would say "I don't even know, what I don't know".

Any help would be greatly appreciated.

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