Messages

1

General Mach Discussion / Re: Trouble getting a smooth cut

« on: January 03, 2014, 11:55:38 AM »

I have attached a picture of what the cut looks like Code line N33210 - N42020. It is the inside cutout layer of the drawing. Also the DRO's appear to be smooth

2

General Mach Discussion / Re: Trouble getting a smooth cut

« on: January 02, 2014, 06:43:03 PM »

This is a file I am having a problem with

3

General Mach Discussion / Re: Trouble getting a smooth cut

« on: January 02, 2014, 06:33:01 PM »

 requested files

4

General Mach Discussion / Re: Trouble getting a smooth cut

« on: January 02, 2014, 06:32:01 PM »

I am having a problem attaching the requested files will keep trying

5

General Mach Discussion / Trouble getting a smooth cut

« on: January 02, 2014, 03:50:34 PM »

I don’t  know if this is a SceetCam or a Mach 3 question. I am having a problem with cuts not being smooth. As a example if I cut a 6 inch circle you get stepping of the table as it is making the cut leaving marks in the work piece This appears to be a happing in both the  X & Y axis   ( by stepping I mean the table is jerking as it make the cut ) There are some pieces that I cut where part of a cutout will be smooth and some will have this stepping.
   
The motor tuning is as follows
      Steps / min   20054
      Velocity      60
      Acceleration    15
      Step Pulse   0
      Drive Pulse   0

I am using SceetCam and Mach3 any help you can give me with this problem would be greatly
appreciated

6

General Mach Discussion / Re: Damaging Geckodrives G540

« on: August 28, 2011, 11:23:13 AM »

I only have the one driver so I can't answer your question. Just before the A drive went I was turning the A stepper with the power off. see the comments on reply #4, this could be the problem. I have steppers with the shaft on both ends and I zero the stepper using the attached knob with the power off but still connected.

7

General Mach Discussion / Damaging Geckodrives G540

« on: August 27, 2011, 03:29:45 PM »

I am having a problem with destroying drives on my Geckodrive G540. In the past 2 months
I have damaged both the Y and A drive. Gecko  says damaged caused by shorting motor wires on the Y drive and on the A drive “Possible causes were applying excessive voltage or shorting the motor leads” This last time Mach3 was working strangely  just before the drive went , with the steppers off the DRO world not jog, they would not move all 4 axis. I had to reload Mach3 software. Once in the past I had to reload mach3 software
because it was acting strangely. Has anyone had  any problems like this with the software or the CPU damaging
the drives. I am nervous to connect the drive to the CNC.

8

General Mach Discussion / Re: A axis help

« on: July 14, 2011, 07:08:32 AM »

Thanks Hood for your help, that corrected the problem but only after I installed the latest software

thanks again

Grumpy

9

General Mach Discussion / Re: A axis help

« on: July 11, 2011, 07:44:54 AM »

Thank you for your reply- I hate to sound slow put I can't find where to set the A axis to rotational

10

General Mach Discussion / A axis help

« on: July 10, 2011, 02:20:57 PM »

I need help with the “A’ axis, I have added a Stepper motor to the A axis to turn a glass cutter.
The Tangentail is active, I  have a test circle that I used SheetCam to generate the g code. The problem is the
A axis stepper just spins until it gets to a set point then it starts to cut. I thing the a axis should go directly to
the set point not spin until the DRO stops at a set point. I am also not sure how to calibrate the a axis, and if there is a special post processor I should be using. Below is the g-code if this will help 

What I am trying to do is cut stain glass. Have had success cutting straight  lines using the jog control

Looking forward to any help you can give

ed




N0000 (Filename: test Curve.txt)
N0010 (Post processor: Mach2.post)
N0020 (Date: 7/10/2011)
N0030 G20 (Units: Inches)
N0040 G40 G90
N0050 F1
N0060 (Part: test Curve)
N0070 (Process: No offset LINE, Mill/Router, 0.0004 inch diameter, 0 inch Deep)
N0080 (Mill/Router, 0.0004 inch diameter)
N0090 T55 M06  G43 H55
N0100 M08 (Flood coolant on)
N0110 M03 S100
N0120 G00 Z0.1000
N0130 X0.5000 Y2.5000
N0140 Z0.0197
N0150 G01 Z0.0000 F25
N0160 Y3.0000
N0170 G00 Z0.1000
N0180 X1.0000
N0190 Z0.0197
N0200 G01 Z0.0000
N0210 X1.7500 Y0.0000
N0220 G00 Z0.1000
N0230 X0.5000 Y0.5000
N0240 Z0.0197
N0250 G01 Z0.0000
N0260 Y0.0000
N0270 G00 Z0.1000
N0280 (Process: No offset CURVE, Mill/Router, 0.0004 inch diameter, 0 inch Deep)
N0290 Y2.5000
N0300 Z0.0197
N0310 G01 Z0.0000
N0320 G03 X0.5000 Y0.5000 I0.7500 J-1.0000
N0330 G00 Z0.1000
N0340 M09 (Coolant off)
N0350 M05
N0360 M05 M30