On Tuesday 24 September 2019 03:37:23 John Dammeyer wrote: > Silly me. In my exuberance to add feature modules to LinuxCNC I > probably should have just checked to see if Mecsoft's AlibreCAM can do > this and not wasted my time since it can. > > So then the question is what kind of G-Code does it produce? I've > attached the G-Code targeted by AlibreCAM for EMC. > > So what does it look like? Well it Loaded and ran without issues. I > used a 1/8" bit with 40% WOC. Depth was 4mm in one pass. > > The first I,J start at line 58 and notice there are moves with G1 for > straight paths before it returns to G02 arcs. N1 G17 G20 G40 G90 > … > N59 G02 X-0.0201 Y-0.0618 I-0.0012 J-0.0523 > N60 X0.0278 Y0.0856 I0.0216 J0.0745 > N61 G1 X0.0769 Y0.0558 > N62 G02 X-0.1206 Y-0.0256 I-0.0901 J-0.0619 > > Notice the spiral isn't symmetrical > Fascinating…
1: a 4mm doc is going to flex the bit, quite a bit, even in alu. The backplot doesn't know that, so I'd just mike the OD, chances are the only noticeable errors will be backlash takeups at the 90 degree points. I have seated bearings in the resultant pocket, worked fine. Xero evidence the bearing race was being pushed out of round. 2. its just removing material once the OD is complete, so its the accuracy of the OD that counts. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
