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E_STEPS_PER_MM Calculation confused smiley

Posted by Citrushund 
E_STEPS_PER_MM Calculation confused smiley
June 02, 2013 03:45PM
Hey all.

I just installed my new Mendel90 by nophead. Awesome machine, my bed is calibrated within .05 and im pretty happy with that result.

Im kinda stuck with the problem to calibrate the extrution feed.

I measured 120mm filament and marked it.
Extruded 100mm with 60mm/s
Measured 15,71mm
Means it must have run, 104,29mm equals to 4,29 to much right ?

How can i correct that in this line ?
#define E_STEPS_PER_MM ((3200 * 39.0)/(11.0 * 6.75 * 3.142))

Martin
Re: E_STEPS_PER_MM Calculation confused smiley
June 02, 2013 05:24PM
Hi Martin,

hatte einen ähnlichen Wert und einfach einen weiteren Multiplikator aus der Division 100/104,... hinzugefügt. Bei dir würde es dann so aussehen:

#define E_STEPS_PER_MM ((3200 * 39.0 * 0.9589)/(11.0 * 6.75 * 3.142))

du kannst natürlich ebenso den Term um den Bruch (deine gemessenen Daten) ergänzen - wie es dir gefällt.

Grüße
ebenso Martin ;-)
Re: E_STEPS_PER_MM Calculation confused smiley
June 09, 2013 07:22AM
Vielen dank grinning smiley
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