Steel Gantry Machine 1500x750x200

**toomast** · 14-01-2018

I use 2 flute 6mm cutter from sorotec.de.
Inside measurement is spot on. Thats the reason I can not blame the cutter diameter? Or am I missing something?
I think this kind of problem has been there from the start. But now I recalibrated all my axis with Mitutoyo digital indicator and all is repetable within .005mm (i dont claim the machine to be that accurate) First axis calibration was with digital caliper which accuracy cant be trusted below 0.02mm. So now I see this strange variation.This part X and Y measurements with caliper dont vary more than 0.02mm.

**Neale** · 14-01-2018

I've just made an edit that you might not have seen. Yes, it does look like an offset problem in the CAM settings for the exterior cut. Can you go back to your F360 operations and double-check?

**toomast** · 15-01-2018

For Compensation Type I use In Computer.

Click image for larger version.

Name: f360.jpg
Views: 336
Size: 116.5 KB
ID: 23593

I will try other options today - will try changing tool offsets in Mach3.
Although I have been using my machine for a year now, I am quite clueless about G-code :( If I need something to change I always go back to CAM and repost...
For faster/better workflow I should compensate in Mach3 I guess.
For roughing passes I leave 0,5mm stock which is default by F360.