--- On Mon, 3/25/13, jeremy youngs <[email protected]> wrote: > http://www.ebay.com/itm/3Axis-Nema-23-Stepper-Motor-425oz-in-CNC-Mill-Controller-SD-2H044MA-driver-/130835449799?pt=LH_DefaultDomain_0&hash=item1e766687c7 > > > i like the idea of using a capstan with offsetting > weight , if you > use 2 motors for x,y then use the same weight in tension the > motors > will see nothing but frictional resistance . If your capstan > is > sufficently large you should see very good accel and top > feed rates , > i think you could do this for less than 500 easily
I explained the idea to Ned and he wants to add that to the torch. He also wants to build an X-Y table for his plasma cutter capable of holding 4x8 foot sheets. Would have to make it around 8.5x9 foot so the head could cover the whole sheet. Not a problem building the table, he has plenty of precision ground shaft and linear bearings at his shop that have been laying about, looking for something to be done with them. Think that same kit on ebay would be strong enough for the X-Y table? I figure a cable drive at both sides of the gantry with a synchronizing shaft at one end, could use two of the motors for that axis and just always command them the same. ------------------------------------------------------------------------------ Own the Future-Intel® Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
