Messages

21

General Mach Discussion / Re: Cutting wrong dimensions in only one spot

« on: October 25, 2019, 02:44:27 PM »

And pic rotated, so cut issue is at 8 o clock.  Not 10 o clock as mentioned in first post

22

General Mach Discussion / Re: Cutting wrong dimensions in only one spot

« on: October 25, 2019, 02:21:04 PM »

Pic didn't load first time

23

General Mach Discussion / Cutting wrong dimensions in only one spot

« on: October 25, 2019, 01:14:56 PM »

Mach3, ESS Smoothstepper, Rhino5, Madcam.

I've tried backlash compensation on and off. Have my CV settings at .1, no other CV boxes checked. Tried IJ mode absolute and incremental. Talked with CAM developer about all settings.  Post is cutting with G2/G3. 

I've played with motor settings. Tried cutting at 1IPM.... I'm stumped.

Pic shows what's going on. Black shape is what I'm trying to cut. Red shape is cut part measured on CMM. I'm always getting this deviation at around the 10 o'clock position no matter what I try. The toolpath is correct, I really believe it's something in mach3

24

General Mach Discussion / Re: Cut quality problem

« on: September 22, 2019, 06:46:16 PM »

Thanks! Back to the Cam forum now!

25

General Mach Discussion / Re: Cut quality problem

« on: September 22, 2019, 01:09:49 PM »

Here is the gcode in attachment. I used this to skim the part .002" to see if the cut quality was better. Finish turned out exactly like original

26

General Mach Discussion / Re: Cut quality problem

« on: September 22, 2019, 09:30:29 AM »

What about my look ahead option,  it's set at 200 right now. What's the harm in trying 400, or even 1000? Pros and cons to really high look ahead numbers?

27

General Mach Discussion / Re: Cut quality problem

« on: September 21, 2019, 02:52:16 AM »

2 more pics

28

General Mach Discussion / Re: Cut quality problem

« on: September 21, 2019, 02:43:51 AM »

This was my thought too. What's the work around for this?

29

General Mach Discussion / Cut quality problem

« on: September 20, 2019, 11:59:18 PM »

Running Mach3, ess smoothstepper. Rhino drawings, madcam cam. When I run newfangled wizards cuts are nice and clean, through cam I get this. Any ideas?

30

General Mach Discussion / Re: Spindle problem... slowly decreases RPM until stop.

« on: February 25, 2015, 07:56:11 PM »

Vfd settings?