Monday, October 02, 2006
Mothra XY axis testing
With all 3 axes working I thought I'd fire up a small test program. This is a vb6 prog that sends pulses to the printer port, which go to a uln2803 directly to the steppers. With my current setup I can only control 2 motors, so I manually lowered the dremel tool into position and gave it a go:
It may be hard to see, but this is a tiny set of squares with some zigzags off to the side. Total size measures .5" x .75" It does need to be locked-down a little better (YZ arm tends to sway) but I suppose it aint bad for a first-timer. Max speed is about 1" every 5 seconds, using nema 17's (5.25" drive stepper motors) I wrote a quick+dirty program in vb6 to draw it.
I guess it's about time to start working on the extruder...
A printer port driven stepper controller could be a great thing for newbies to have. With that they could get into designing and testing their xyz positioning system without going through all the drama of having to build up PIC boards. It might well make getting into making a reprap a lot easier for newcomers.
Nice work BTW. Very cool to see simple shapes cut into a block of wood.
Links to this post: