Over the holidays I managed to break a BLTouch pin and due to shipping delays it was going to take a long time to get a pin replacement so I decided to revisit Z stall probing and it turned out to work fairly well for me. Though smashing the nozzle into the bed isn't a comfortable experience. There is nearly 1mm of flex on the print head as it pushes down before it stalls, which is a bit unnerving.
On the plus side the results are pretty consistent, and there is no XY offset.
The hard part is finding the balance between high enough speed, low enough current, and reliable movement.
@Ladusse said in Configuring Stall Detection:
@jay_s_uk thanks. I ask this question because when I home my Z axis it isn't very constant with my limit switch. Do you have a tip to be more constant like speed, proximity switch instead of limit switch?
The usual technique is to home once quickly to get it there and then back off and home again more slowly. Simple switches usually have little metal flaps to increase the striking area, but they can also increase variability, so removing the metal flap can help as long as you're lined up to hit the little switch.
Other things in your Z axis stage can be the cause of variability as well like flexible lead screw couplers, or spring mounted beds that would remain regardless of the probe/switch used.
