Friday, July 27, 2007
Where is home?
This is something that's been on my list for ages... to get some data on Darwin's optoswitches (H21LOI). How good are they at providing a repeatable home position?
No surprises here - it's all pretty damn accurate. A testament to some solid programming no doubt, nice one ;-) I ran the y-axis back and forwards 10 times, with a caliper strapped on. For both speeds the opto-switch arrangement homed the y-axis to the same motor step 10 out of 10 times. From the results below it's pretty obvious that even greater repeatability might be achieved by slowing the axis down before meeting the end-stop.
No surprises here - it's all pretty damn accurate. A testament to some solid programming no doubt, nice one ;-) I ran the y-axis back and forwards 10 times, with a caliper strapped on. For both speeds the opto-switch arrangement homed the y-axis to the same motor step 10 out of 10 times. From the results below it's pretty obvious that even greater repeatability might be achieved by slowing the axis down before meeting the end-stop.
