3D printed geardsworks well for threading and cost less then $1 to make (assuming you have a printer)
Yes gears are hard to design but all the gear companies have CAD files on their websites. I just go to McMaster Carr and download the CAD file, do some trivial mods to make the hubs and face width what I want and then print it. There is a Youtube video where a guy makes a printed gear and tried to intentionally break it by making very deep cuts and he can't break the plastic gear. These gears have only small loads compared to the spindle. Not bad for under $1 and an hour of your time. On Tue, Oct 26, 2021 at 5:47 AM Eric Keller <[email protected]> wrote: > I wanted to modify my lathe to cut metric threads. But it requires 7 > gears. Of course none of them are commercially available. I don't really > want to be in the business of hobbing gears, so I'm going to an electronic > gearbox instead. The stock setup was a timing belt, so hooking up a motor > is a lot easier than cutting gears. I am not positive, but I think you > could switch back and forth with the gear train setup. > Eric Keller > Boalsburg Pennsylvania > > > On Mon, Oct 25, 2021 at 10:02 PM Sam Sokolik <[email protected]> wrote: > > > We are finally getting around to converting the 73 > > cincinnati milacron lathe. > > > > https://www.youtube.com/watch?v=-J7EmnRZXjw > > > > At the end of the video I show the switch that switches between 2 > > differently geared resolvers. > > > > On the back of the hydraulic servo is a gearbox. first is a 2.5:1 > > increaser that makes it so the english resolver spins 5 times per inch > (.2" > > of axis movement - 2TPI lead screw) then there is a set of gears 127:50 > > (2.54:1) for the resolver used for metric. Than that resolver runs at > 2mm > > per rev. Amazing how it was cheaper to do this in hardware than in the > > control (ttl ic's) > > > > https://photos.app.goo.gl/yezaTdnNWZHg9Dm4A > > > > https://photos.app.goo.gl/QNDzVJmnD9HWjs8LA > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
