On Friday 27 March 2015 23:28:12 Gregg Eshelman wrote: > I've an idea for a project involving a pair of 9x20 9-speed > quickchange gearboxes mounted side by side, with a filler between and > three gears to couple the output of one to the input of the second. > > I'll have the gearbox off my $50 9x20 but need another. > > 9 speeds on one box feeding a second box with 9 speeds... I wonder if > any combinations would be duplicates?
I believe that any combo would be the same as mirroring the combo, eg 3rd gear on box 1 and 5th gear on box 2, would be identical to 5th gear on box 1 and 3rd gear on box2. So while 1st gear in both boxes would be a set stakes and call a surveyer slow, there would not be the 81 variations with no dups. To me, with the capability in LCNC to lock axis motions together, it made more sense to put a bigger HP treadmill motor on mine, with a fixed 3/1 reduction before it got to the backgear. With a fwd only toroid mod to one of Jons servo amps, and an old 1500 WA phase linear audio amp power transformer for a motor psu, it could turn the spindle in a much bigger lathe than my toy 7x. I can still get to 1500 rpms, not fast enough for real CSS at small diameters, but usable for above 0.75" OD stuff. 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> ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
