I replaced my pulleys and belts with other types, these are different in diameter.
Anyone who knows how to change the settings in the firmware?
Thanks
you can change this in the firmware.
change this file, you have to compile and upload after changes.
\Marlin - 2560\Marlin\Configuration.h
search for
#define DEFAULT_AXIS_STEPS_PER_UNIT {64.25,64.25,2560,600}
The axis order in all axis related arrays is X, Y, Z, E
actually we have 64.25 steps on X/Y Axis
We have 1.8 degree stepper motors
1/16th step are used (microstepping), meaning they take 16 pulses to move 1.8 degrees
multiply PI (3.14) times D (the effective pulley radius) Pitch Diameter 13.20 mm
it takes 3200 pulses to make 1 revolution
a Full rotation of the motor moves the belt a linear distance of 41.4690230273852707 mm/rev
So divide that by 3200 steps 0.0129590696960578971
invert (the 1/x key)
The final equation looks like this
1/(13.20 * pi / 3200) which equals 77.166033014252284 steps
you have to shorten the result, e.g, just use 3.14 as pi.
since this is theory you have to check the real distance in real.
[quote=“thev”]you can change this in the firmware.
change this file, you have to compile and upload after changes.
\Marlin - 2560\Marlin\Configuration.h
search for
#define DEFAULT_AXIS_STEPS_PER_UNIT {64.25,64.25,2560,600}
The axis order in all axis related arrays is X, Y, Z, E
actually we have 64.25 steps on X/Y Axis
We have 1.8 degree stepper motors
1/16th step are used (microstepping), meaning they take 16 pulses to move 1.8 degrees
multiply PI (3.14) times D (the effective pulley radius) Pitch Diameter 13.20 mm
it takes 3200 pulses to make 1 revolution
a Full rotation of the motor moves the belt a linear distance of 41.4690230273852707 mm/rev
So divide that by 3200 steps 0.0129590696960578971
invert (the 1/x key)
The final equation looks like this
1/(13.20 * pi / 3200) which equals 77.166033014252284 steps
you have to shorten the result, e.g, just use 3.14 as pi.
since this is theory you have to check the real distance in real.[/quote]
Many thanks,
Your post helped me a lot!!
