On Friday 29 May 2020 14:20:58 Thaddeus Waldner wrote: > > I've dl'd that sprocket file, now what do I do with it to make a > > printable .stl? _Unpack it, see openscad mentioned, install openscad > > and friends, explore. For single sheeve, looks great. Obviously > > will need to figure out how to do hubless & bolt 2 together as > > central idler over a pair of skate bearings. Looks as if it should > > work if the printer does its job. > > I believe you need to render the part, then export the .stl. That > file is pretty well documented and I suppose after a lot of the > “explore” piece, a guy could get fluent in that language and coax it > to build ideas. Me, The biggest thing I’ve done is modify this file to > create a custom belt profile for a replacement pulley in a sewing > machine. This company went with a belt that looks like a HD profile > but with a 0.2” pitch... > > > Probably watching paint dry fun. :-) A potential problem, possibly > > fixable by putting the grub screws at 180 degrees, is the double > > d-flat on the worm shaft unless theres an option to do that to a > > round hole. > > I used a pair of screws at 180 degrees to keep the pulley from flexing > sideways too much when it’s clamped. > Those flats are big enough that one could use 4 screws per side, and get a really rigid mount. Getting 2 axially aligned in one test render I did, didn't work. It apparently put both nuts in the same physical space. You can do that in video, but steel doesn't work that way. ;-)
I'm assuming that the .stl to motion driver is included, but I see in one of the later videos he is touting a new case for an r-pi4, and just today, the r-pi folks have announced an r-pi4 with 8GB of dram at $75 bucks. I'm running that Sheldon very nicely with a 2GB rpi4 and an armhf kernel built for preempt-rt. That will obviously need a 64 bit kernel to use that much dram. Whats in it now for an .stl rendering engine? Thanks. 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
