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Printer Calibration and firmware

Posted by Xecut0r 
Printer Calibration and firmware
July 12, 2015 03:53PM
Marlin firmware, home on all axes ok, have set z to stop around papers width from surface. Using ABS 3mm filament, 0.4mm nozzle. extruding around 250deg using hairspray on heated glass

Steps per unit: M92 X80.00 Y80.00 Z533.33 E961.70
Maximum feedrates (mm/s): M203 X500.00 Y500.00 Z5.00 E25.00
Maximum Acceleration (mm/s2): M201 X9000 Y9000 Z100 E10000
Acceleration: S=acceleration, T=retract acceleration M204 S3000.00 T3000.00
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), E=maximum E jerk (mm/s) M205 S0.00 T0.00 B20000 X20.00 Z0.40 E5.00
Home offset (mm): M206 X0.00 Y0.00 Z0.00
PID settings: M301 P22.20 I1.08 D114.00

My nozzle is grinding into previous layers. and wavy lines especially first layer

Leadscrew driven system prusa calculator says 4000

0.8 pitch m5 (is all m5 same pitch)
1:1 gear ratio (What is this)

If I set 4000 in firmware Z drives very fast and will lock up with high pitch sound when try homing, I wanted to try the repetier firmware it's not working like the marlin the config.h
open | download - First layer.jpg (405.9 KB)
open | download - infill.jpg (420.1 KB)
open | download - marlin_Configuration.h (35 KB)
open | download - Repetier_Configuration.h (25.5 KB)
Re: Printer Calibration and firmware
July 13, 2015 11:14AM
4000 steps per mm, agree. (for M5 standard (M5 fine is 0.5 pitch so; 6400) measure it)

Why have you got; Steps per unit: M92 X80.00 Y80.00 Z533.33 E961.70

(No wonder you're hitting previous layers.)

The speed should be the same whatever the Steps per unit.

Have you tried just moving z and measuring it?

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