Revision as of 09:12, 13 November 2021

Friction

11/14/21 gets us 13-23 lb friction on Y1
Y1 has more friction than Y2 - due to autoparallel-Y piece being on Y1 side and less stiff? Y1 axis rotates around the Y axis as does slide into y-autoparallel piece. Y2 doesn't due to stiff x connection.

Y1 belt kept rubbing on idler side. Idler was slightly slanted, and wobbly pulley on x motor did not help.
Enlarging hole in pulley from 6 to 8 mm is difficult with mag drill. Did it in 0.4 mm drill increments - drilling is not self-alogning even with this small increment
Z pulley wobbly and bent from too string vice hold
Z and y1 pulleys replaced - these were wobbly
Drilling was done in 1/64" (0.4 mm) increments starting with 1/4". Motor shafts are 8 mm, pulleys were 6 mm
X autoparallel is implemented with oversized x mount holes on x1
Y autoparallel is implemented with autoparallel y 3D prints and nylon bushings; nylon bushings are longer than needed
Y and Z only use hollow shaft. Hollow shaft uses nylon bushings, solid shaft uses bronze oiled bushings

At half inch cutting speeds of 20 ipm or 500 mm/min - this is prior to pulley size calibration of about 30% larger pulley
11/12/21 gets us 25 lb towards negative y1, 20+ for both directions of y2, and 20+ lb for both directions of x
Positive y1 - data?

@@ Line 1: / Line 1: @@
 =Friction=
+*11/14/21 gets us 13-23 lb friction on Y1
+*Y1 has more friction than Y2 - due to autoparallel-Y piece being on Y1 side and less stiff? Y1 axis rotates around the Y axis as does slide into y-autoparallel piece. Y2 doesn't due to stiff x connection.
 =Alignment=