Homed Height

bulka

I changed the calibration on bed config file using :http://www.escher3d.com/pages/wizards/wizardbed.php

bulka

@bulka said in Homed Height:

M665 R55.41 L355.00 H366.75 B170.00

what I'm not sure about this command ... the parameter R and L ( don't kill me )

I don't understood perfectly how to calculate it...

I changed the M558 as suggested in the wiki ( and by you ) to M558 P5 R0.4 H20 F120 T6000

dc42

@bulka said in Homed Height:

@bulka said in Homed Height:

M665 R55.41 L355.00 H366.75 B170.00

what I'm not sure about this command ... the parameter R and L ( don't kill me )

I don't understood perfectly how to calculate it...

I changed the M558 as suggested in the wiki ( and by you ) to M558 P5 R0.4 H20 F120 T6000

L is the rod length measured between bearing centres. If you are using Haydn Huntley's magnetic rods, each rod carries a label on which its length is written, so use that figure.

R is the delta radius. The exact value will be found by calibration, so you need to provide only an approximate value. Use the horizontal distance subtended by any rod, measured between bearing centres, when the effector is central.

bulka

ok.
changed to:
M665 R168 L360 H366.75 B170.00
M666 X0 Y0 Z0

I'll try to start auto calibration

bulka

Calibrated 6 factors using 16 points, deviation before 1.322 after 0.029

bulka

change calibration to 7 factor:

Calibrated 7 factors using 16 points, deviation before 1.201 after 0.016

Dougal1957

@bulka not wise to use 7 factor if you know your rod length properly use either 6 or 8

bulka

ok, I read after your answer on wiki: " typical delta printer builds, 6-factor is best"

Changed beg config file:

13:21:29
Calibrated 6 factors using 16 points, deviation before 0.017 after 0.014

13:23:13
M665
Diagonal 363.663, delta radius 173.193, homed height 366.386, bed radius 170.0, X -0.034°, Y -0.209°, Z 0.000°

13:23:09
M666
Endstop adjustments X0.20 Y0.83 Z-1.03, tilt X0.00% Y0.00%

If I'm not wrong...after calibration....the Diagonal was changed....it's wrong to use 6 factors using 16 points?

Dougal1957

@bulka the drag rod length was changed by the previous 7 factor cal you need to manually reset the rod length and run it again with either 6 or 8 factor cal

bulka

done thank you

thank you DC