Difficulties while homing Z July 16, 2014 06:39PM |
Registered: 10 years ago Posts: 28 |
Re: Difficulties while homing Z July 16, 2014 08:49PM |
Registered: 9 years ago Posts: 32 |
Re: Difficulties while homing Z July 16, 2014 11:25PM |
Registered: 10 years ago Posts: 231 |
Re: Difficulties while homing Z July 17, 2014 03:52AM |
Registered: 10 years ago Posts: 28 |
Quote
brucehvn
How are you calibrating? If you are using a piece of paper or a feeler gauge, I found that a lot of times my hotend would end up with a small bit of hardened plastic at the nozzle. This would throw off the calibration just a bit making me think the nozzle was too close. After adjusting and starting a print, the plastic would melt when the hotend heated up and then the nozzle would actually be too far from the bed causing what you are talking about.
If you setup auto bed leveling, you take the nozzle out of the equation by using a probe for z homing.
Re: Difficulties while homing Z July 17, 2014 04:58AM |
Registered: 10 years ago Posts: 231 |
Quote
borupdk
As for how i do it, i use a piece of paper and rise the heated bed in the corners (by following the procedure in the reprap wiki which i cant find now..) until I feel a very slight drag on the paper. But i do follow your train of thought. I was thinking it maybe had something to do with the firmware, because when the print is started it will home z, and will hit the height perfectly, then move up 1 cm and down again to "home" but it never hits the endstop again.
Re: Difficulties while homing Z July 17, 2014 04:56PM |
Registered: 10 years ago Posts: 28 |