On Friday 01 May 2015 05:05:33 Mark Wendt wrote: > On Thu, Apr 30, 2015 at 4:14 PM, Todd Zuercher > <zuerc...@embarqmail.com> > > wrote: > > Try searching for a J section belt, I found some listed as small as > > 8" OC length (what ever that means). > > http://beltpalace.com/heavy-duty-belts-poly-v-ribbed--j-section.html > > Outside circumference, maybe? > > Mark
Blink! That may well be the key translation to that acronym Mark, in which case an 8" OC would be way too short. I might have to rethink how I go about determining it. My thoughts up to now have been using nominally 1/2 the circumference as the belt wrap distance for the amount of belt actually in contact with the pulley's and 2x the intershaft spacing as a SWAG to be used for length. If the larger pulley is 70mm, thats nominally 110mm of wrap, and the smaller pulley is 40mm, thats 62mm of belt wrapped, and the shafts are 100mm apart, I'd have 110+62+200=372 to 380mm of belt needed. The dis-similar sizes will of course give more wrap length on the larger pulley and less on tha smaller pulley, so to be dead on I'd better look it up in the Handbook. OTOH, thats what the pivoting motor mount is for anyway. :) So a 15" OC belt would be in the ballpark. But I'd best get the pulleys made first, if I can determine the rib spacing. I'd love to put the motor behind the spindle, but that would intersect with the Z drive bolt, so it will need to remain as a sideways offset. All that of course is TBD. ;-) 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> ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
