On Sunday 05 July 2015 23:07:21 Gene Heskett wrote: I have a new disk under construction, but it will be most of the day due to the fragility of a .03125" end mill even though its just barely long enough to reach thru a .03125" brass sheet. Door kickplate TBE. Broke one instantly at 5 ipm digging 3 thou deep in brass, so its down to about 1 ipm & making brass powder now. I have made it about 1/8" larger in order to get the opto's clear of spinning mounting bolts, and after checking the runout of the return spring holder, and made the center hole about 3 thou bigger that it is, figuring I can if I have to, slide some reynolds wrap into the gap at the right place to improve the concentricity. I might even skip the bolts, and drive a shrink fit ring onto the spring holder and put a couple drops of superglue to hold it to both. Jury rigging to be sure, but with the motor cover re-installed, nothing is going to touch it to disturb it.
I need a vacuum plate to hold this stuff flat, a std table clamp at the 4 corners of the starter sheet, with some thin 5 ply under it for sacrificial, is warping it about 6 or 7 thou up and down. First scratches said the slot duty cycle was way too wide, so I stopped, reset it to 2/3rds of the starter value, looks decent, but this is one of the reasons I've made several of these before, and put pots to adjust the led brightness to try & get a true 50% square wave from each opto. New, different opto=whole new game & rules. More later. :) 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> ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
