XY Position in Firmware for checking 9 points  

Re: XY Position in Firmware for checking 9 points

There is an announcement at the top of the forum, "Everything you need to know about MK2! (NEW Drivers & FW June 7th)". It has an attachment "CheckPoints1and9.gcode.zip". This has coordinates of two points 1 and 9. According to this, the first point is 12,-3 and the 9th point is 215,193. I have tested this file, and it seems to be OK.

Points 3 & 7 can be directly derived from this I think. If everything else is a midpoint, then that can be computed as well. That's all I know !

Re: XY Position in Firmware for checking 9 points

Thank you for the reply 🙂
I took the liberty to post the GCode here:
G28 ; Home All axes
G90 ; Set to default
M201 X1000 Y1000 Z300 E600 ; Set Acceleration
G1 Z1.000 F6000.000
G1 X12 Y-3
M0 S30 P1
G1 X215 Y193
M0 S30 P1
G1 X10 Y190

Moving the Y axis to -3 after having homed seems a bit odd, though. Maybe this movement just insures that Y is at minimum?

Re: XY Position in Firmware for checking 9 points

Moving the Y axis to -3 after having homed seems a bit odd, though. Maybe this movement just insures that Y is at minimum?
If I remember right, minimum Y is -4 (not zero - I was surprised too when I figured this out).

Re: XY Position in Firmware for checking 9 points

The probe and the nozzle are in different places. What you are seeing is the nozzle positions and not the probe position.

The probing range needs to cover as much of the bed as possible, so the nozzle will have to move our of bounds to achieve this.

Peter