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General Mach Discussion / Re: Need Help Getting ShopMaster Stepper Motors Running Under CNC Control
« on: January 04, 2013, 08:22:17 PM »
I put the CNC cabinet back together, put the 5 volts to the system from a hard drive tap and the software fired the CNC motors right up with all three axis running backwards! I changed the dir pin to low active and the direction arrows were corrected. The table has never been used and has sat since 2008. The motors were grumbing a bit so I turned them off used the power feed a couple times. This freed up the X-axis nice and smooth. When I was doing the Y-axis, for some reason the table is phyically jammed toward the end of its travel (over 1/2" to go though) so I'll now need to look into that.
It also it shredded a belt for one of the speeds on the lathe. The back of the belt rides against an idler and the alignment is such that the belt easily comes off the idler and wedges up by the axle. The fix would be to push the pully on to the motor shaft another 1/4", but this is a press fit and easier said than done with the machine now in place.
It also it shredded a belt for one of the speeds on the lathe. The back of the belt rides against an idler and the alignment is such that the belt easily comes off the idler and wedges up by the axle. The fix would be to push the pully on to the motor shaft another 1/4", but this is a press fit and easier said than done with the machine now in place.