Yes, The the best and newest tooth profile the GT3 from Gates. These are quiet and have there smallest backlash and also the smallest belt tension requirements.
Running a pass of a ball nose might make a working pully but the profile will not be exact. If you must MAKE a uleey the trick is to go the the SDP/SI web sight (or McMaster Carr, or whatever) and download a CAD file for the part. It is easy to mill a pully if it lacks flanges. So make it in three parts and make some big washers to use as flanges if needed. You can also print a GT3 pulley. Be careful with Chinnese suppliers they abuse the name convention. In China "GT3" is a GT profile with a 3mm pitch. But elsewhere GT3 is the profile and you say "GT3 with 5mm pitch and 9mm width" or whatever. Just like gears the profile changes with the pulley size because when you band a belt the teeth point inward depending on how tight you bend the belt. So if making you own, use a CAD file from a catalog. Youcan also buy GT profile bar stock and slice it like bread to make custom pulleys. Then you get a perfect profiles and any custom hub you like. What I do is make a metal hub in steel and then press fit/epoxy a 3D printed ring of teeth over the hub, These hold up really well and are easy to make. On a pulley all the stress in on the hub and set screw. The teeth only need to be as strong as the rubber teeth in the belt, Aluminum is overkill. PLA works there. But PLA hubs fail very quickly. On Fri, Jul 24, 2020 at 12:04 PM John Dammeyer <jo...@autoartisans.com> wrote: > What's the quietest profile/size belt for driving a spindle with 2HP up to > 3000 RPM. > > I recall someone saying the round groove is the best for this. Since > we've been talking about gear cutters are there special cutters for that > belt profile available? > > Thanks > John > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
