XY Position in Firmware for checking 9 points
 
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XY Position in Firmware for checking 9 points  

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andreas.s2
(@andreas-s2)
Eminent Member
XY Position in Firmware for checking 9 points

I am keen on moving my Extruder via commands to the positions of the 9 z-calibration points manually. Does anyone know the 9 X and Y points of the z-calbration function?

Thank you 🙂

Opublikowany : 11/07/2016 10:13 am
Shree Kumar
(@shree-kumar)
Trusted Member
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 !

Opublikowany : 11/07/2016 2:56 pm
andreas.s2
(@andreas-s2)
Eminent Member
Topic starter answered:
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?

Opublikowany : 11/07/2016 3:22 pm
Shree Kumar
(@shree-kumar)
Trusted Member
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).

Opublikowany : 11/07/2016 3:27 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
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

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Opublikowany : 11/07/2016 4:36 pm
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