On Tuesday 25 August 2015 05:25:45 andy pugh wrote: > On 25 August 2015 at 03:25, Gene Heskett <[email protected]> wrote: > >> There is a sample G-code file that does that already. > >> see probe-hole.ngc in the "Examples" in nc-files. > >> I use that, which finishes the moves with the machine at the centre > >> of the circle, then I touch-off X and Y to zero there. > > > > And it zeroed me about .55 mm to the right of center. > > Something wrong there then. (And not, I am fairly sure, with the code)
I ran it one more time, giving the #1 half again as much wiggle room but it had already carved one wall, so I wound up centering it with the butt end of a digital caliper, reading the outside of the hub to the nearest flute of the bit. That seemed to work but I needed to make it about .08mm bigger, its quite hard to drive onto the shaft, which is about 9.04mm and holds the 9mm plastic pulley nice & tight. I have 2 more of those plastic pulleys, so I'll pull this one back off & use up the plastic ones making a new shaft for the 10mm bore pulleys I just bought. Those only come with setscrews, so I'll try dimpling the shaft to give them a better grip, or something. I am not equipt to broach a 3mm keyway, darn it. But since I have some mills in that size range, I can at least slot the shaft, and I'll look around for a suitable needle file for keying the pulley. But not till late this afternoon as I'm going to get some shots in my back today. Thanks Andy 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) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
