Re: Precision Piezo z probes guide for duet users reference
I'm been having trouble tuning PPOrion on my Duet3 5+. I'm a Titan/3D3v6 hotend on a CoreXY printer and a moving Zaxis. I'd like to replace my current Z-min endstop with the ppOrion.
I'm running digital pp mode, as I can't get any analog sensor value other than '1000' in the Web Control
I installed and test fine manually: flicking the nozzle fires the LEDs as well as changes the sensor output from 0 to 1000. I can G30 to home Z when using my finger, but whenever I try for an actual bed probe, the sensor seems to fire on release/return movement and not initial contact. So when my bed hits the nozzle, the slow constant pressure doesn't set off the sensor and it results in crashing and pushing my nozzle. Changing probe speed in setup doesn't make any difference.
It seems most of the forum suggestions are for RRF2.xxx. (playing with M552 "I" commands (which is depreciated in RRF3) or reverse the sensor lead polarity (which are hardwired on the Orion). Similarly, I'm not sure if having a Duet3 I/O socket instead of a Duet2 dedicated port has any impact; I'm on I/O_1in for reference, but don't think I need any specific config setup commands for that.
my config.g lines:
M558 P8 R0.3 F250 T4200 C"!io1.in" H6; PP sensor in digital mode connected it io1.in
G31 Z0.05 ; set Z probe trigger value, offset and trigger height
M557 X20:280 Y20:280 S60 ; define mesh grid
Any help would be appreciated. Thanks