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Scoovo X9H: Marlin 3D Printer Firmware

Scoovo X9H - Marlin 3D Printer Firmware

I needed to use Arduino 1.0.5 or an older version to update the firmware, as later versions could not load the add-in needed to load the RAMBo board. Without this the LCD could not be loaded.

Note: Ardunio version 1.6.7 nightly build worked. I still had to load the RAMBo board driver/plug via the preferences popup though.

https://raw.githubusercontent.com/ultimachine/ArduinoAddons/master/package_ultimachine_index.json

The first link is a zipped version of the original setup files for the Scoovo X9H 3D printer. They are covered by a general public license (GPL).


Download latest tested and updated driver from https://github.com/a4jp-com/MarlinDev/


Steps per millimeter – leadscrew driven systems

Result Leadscrew pitch Step angle Stepping Gear ratio
1066.67 3 1.8° 1/16th 1 : 1

3mm leadscrew pitch
1066.67


Steps per millimeter – belt driven systems

Result Resolution Teeth Step angle Stepping Belt
71.65 13.95625 microns 22 1.8° 1/16th 2.03mm

Example

M92 g-code can set the steps per mm in real time. Here is an example with your result for X axis.

M92 X71.65

Optimal layer height for your Z axis

3mm / 200 = 0.015

Optimal layer height ★
In 0.015mm steps

Motor step angle
1.8° (200 per revolution)

Desired layer height
0.3mm

Leadscrew pitch
42mm sample distance / 14 ridges
42 ÷ 7 = 3
3mm/revolution

Layer height Error over 10cm Number of steps Step length
0.285 0mm 19 0.015mm
0.3 0mm 20 0.015mm
0.315 0mm 21 0.015mm

0.285 – 0.3 – 0.315 etc


TR14x3 Acme Lead Screw for the Z-axis


Nozzle diameter: 0.4mm + Filament diameter: 1.75mm


MXL cog 22 teeth


MXL Timing Belts – .080″ & 2.03 mm Pitch

B 76 MXL
pitch 6.08 inches, 154.432mm
76 teeth

B 295 MXL
6mm width
pitch 23.06 inches, 599.44mm
295 teeth

Check data here:
http://www.powertechno.co.jp/p_03_06.html

Server 1: http://www.sdp-si.com/D265/PDF/D265P1003.pdf
Server 2: https://a4jp.com/downloads/D265P1003.pdf


z-thread 14mm diameter (? 2mm pitch ?)


ShinanoKenshin Step Motor

Step Angle 1.8 degrees
Resistance / phase: 2.6 Ohms

1.8°/STEP 2.6Ω
STA-42D3023 (Fake number to hide real details of the motor by Shinano Kenshin)

Maybe this is the real model number SST45D012X
2 Phase Hybrid Stepping Motor 45D SERIES 42mm (NEMA17) High Holding Torque Model Unipolar
1.8 deg. step angle
3.1V
1.2A/theata
2.6 Ohms
1.8mH/theata
237mN-m
45g-cm2
6 pins
200g
32mm

4.2″ diameter stepper motor with a flange is a NEMA 42D


Hitachi HD44780 LCD display
94v0 lcd 16×4


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