little M371 Problem

[Whiskey]

Hi,

X/Y Calibration work fine – Problem at the moment is my Z calibrtion … on M371 Command i get this position of the nozel … but why ?

SENDING:M503
echo:Steps per unit:
echo: M92 X215.00 Y215.00 Z5098.53 E450.00
echo:Scaling factors:
echo: M365 X1.00 Y1.00 Z1.00
echo:Maximum feedrates (mm/s):
echo: M203 X300.00 Y300.00 Z300.00 E45.00
echo:Maximum Acceleration (mm/s2):
echo: M201 X400 Y400 Z400 E8000
echo:Acceleration: S=acceleration, T=retract acceleration
echo: M204 S9000.00 T3000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum xY jerk (mm/s), Z=maximum Z jerk (mm/s)
echo: M205 S0.00 T0.00 B20000 X10.00 Z10.00 E5.00
echo:Home offset (mm):
echo: M206 X-2.49 Y-28.14 Z0.00
echo:PID settings:
echo: M301 P22.20 I1.08 D114.00

Thanks
Whiskey

[Whiskey]

additional – i’ve DRV8825 with 1.8° Motors

[Quentin Harley]

What is the programmed tower offset? Mine is x 100 y -65

If the y offset is not enough you get the nozzle dropping off the side. Also check the x and y min and max values. Use 0 and 200. Using less than zero will cause M370 to calculate the targets into the negative area.

[Whiskey]

#define SCARA_offset_x 100 //mm
#define SCARA_offset_y -56.5 //mm

changed min/max from x+y from your original -10/210 to 0/200
will test …

min/max change no difference ..
will change SCARA_offset_y to -70 (need about 15mm+) and check

[Quentin Harley]

The offset should do it. My current default is y -65

[Whiskey]

YESSSSSS … 🙂
i canged the offset to -80 not to -70(just for fun)
and it works … ok, now the nozel is about 5mm over the 0-Line … think i don’t care about, or?

Thanks!

[Quentin Harley]

If it fits, great!

Pictures of your first print mandatory!

[Author]

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