Wednesday, September 12, 2007


First perimeters traced

I got the new xy_move routine working with the rest of the Control Panel and firmware ensemble this morning. There were a few false starts until I tracked down some code in the z_move routine that turns off the interrupts that was left over from an earlier version of the firmware.

Aside from that I hadn't run the z-axis in some time and it was a little sticky from a slight, humidity driven expansion of the wooden slide assembly. Once I ran it a half-dozen times, however, I had no further problems.

From the looks of it I can keep 95% slewing errors well below +/- 0.1 mm for line segment lengths and closer to +/- 0.1 mm for 0.1 mm line segments.

Now, I've got to hook up the code that controls the Mk 1 extruder and I should be good to go.


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