R/C servo operation working September 01, 2016 05:12PM |
Registered: 8 years ago Posts: 475 |
Re: R/C servo operation working September 01, 2016 05:43PM |
Registered: 10 years ago Posts: 293 |
Re: R/C servo operation working September 01, 2016 07:18PM |
Registered: 8 years ago Posts: 475 |
Re: R/C servo operation working October 07, 2016 08:05AM |
Registered: 7 years ago Posts: 109 |
Re: R/C servo operation working October 10, 2016 12:17AM |
Registered: 7 years ago Posts: 3 |
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unromeo21
Successfully implemented this and it's working like a charm! I always wanted a "touch" probe, as I am using different bed materials and with different optical characteristics, so an infrared sensor is out of question.
One thing to add, maybe others will experience this as well: The servo would rattle and jump positions after the extruder stepper was enabled and running, having all the wires in the same bundle from the X carriage. One solution would be to shield the servo wires and use twisted pairs for the stepper, but I found that if the control line was pulled high after the position change, it would just disable the servo control and leave it in the last position. Now, without any position control, the servo won't actively hold it's position, and it's easier to move by hand or if the pulling force is high. In my case, just a pin hold down by a weak spring is not even close to change the position of the servo on it's own, so it's safe to "turn off" the servo during the print. I just added M106 P1 I0 S0 after every M106 P1 I1 F50 S0.xx in my probe deploy / retract scripts.
Re: R/C servo operation working October 10, 2016 03:58AM |
Registered: 7 years ago Posts: 109 |
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Eddygara
Could you post pics of the wiring you had to do too get this running?
Re: R/C servo operation working October 10, 2016 02:57PM |
Registered: 7 years ago Posts: 3 |
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unromeo21
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Eddygara
Could you post pics of the wiring you had to do too get this running?
The answer is right at the beginning of this thread ...