Duet3 6HC RatRig vcore3 config
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retractprobe.g Fix bed and homing coordinates, add calibrate thermal probes, etc 2021-05-28 22:35:11 +00:00
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tfree0.g pmso mix generated + ratrig + pmso 2021-05-26 21:17:05 +00:00
tpost0.g pmso mix generated + ratrig + pmso 2021-05-26 21:17:05 +00:00
tpre0.g pmso mix generated + ratrig + pmso 2021-05-26 21:17:05 +00:00

Vcore3 500^3

Intro

Configure and document a Vcore3 from RatRig with a Duet 3 6HC. The Vcore3 is a core xy 3d printer with a kinematic bed on 3 axis. The purpose of this repo is not to have a 1 fit all solution but the solution that works for my use case, I've tryed to provide all the hardware components and their setup, this may not suit your case. If you have a suggestion please consider opening a pull request. In the other hand it may help you setup your printer in a fast way, use at your own risk. Parts of the g code are not mine and were extracted from the ratrig config, duet github repos, and other sources (references on the links and external sources bellow).

Pay special attention to the stepper direction and stepper step/angle, these are not standard.

HW Config

Display
SBC
Power supply
Steppers
Carriage
HotEnd
Lighting
Fans
Bed calibration tool
Endstops
Bed heater
Filament sensor

1x Duet 3d - laser sensor

Software

Base intall

Duet light - Config link

Git config && software deployment

apt-get update && apt-get upgrade && apt-get install git
mv /opt/dsf/sd/sys /opt/dsf/sd/sys.ori
mv /opt/dsf/sd/macros /opt/dsf/sd/macros.ori
cd /opt ; git clone https://g.lgeex.com/3dprinting/duet_vcore3.git
chown -R dsf:dsf /opt/duet_vcore3
chmod -R g+s /opt/duet_vcore3 
setfacl -R -d -m u::rwx /opt/duet_vcore3
ln -s /opt/duet_vcore3 /opt/dsf/sd/sys
ln -s /opt/duet_vcore3/macros /opt/dsf/sd/macros
ls -s /opt/duet_vcore3 /root/ # yes I use root on the rasp.

Duet 3 6HC - Pins

IO

Used IO pin headers

  • io_0 - display
  • io_1 - y endstop
  • io_2 - x endstop
  • io_7 - bltouch

Stepper motors

All steppers are 0.9º

  • z left - driver2 - motion backwards (looking from the back of the printer)
  • z rear - driver1 - motion backwards
  • z right - driver1 - motion backwards
  • top right motor - driver3 - Y - motion forwards (looking from the back of the printer)
  • top left motor - driver4 - X - motion forwards
  • extruder motor - driver5 - motion forwards

Outputs

Heating elements (24v)

Heating elements in use:

  • out1 - SSR Bed
  • out2 - Hotend
Fans (24v)

Fans in use:

  • out4 - layer fan
  • out7 - hotend fan
Lighting
  • out8 - dc ssr operated leds

Temperature probes

Thermal probes in use:

  • temp0 - Bed thermistor
  • temp1 - Hotend thermistor

TODO

  • Setup filament sensor

  • Add printing tracking camera

  • All macros are untested until stated otherwise (some are cloned from duet repos, others are mine), list of tested macros:

    • Lighting (all)
    • Preheat (all)
    • PID tuning Bed && HotEnd
    • Preheat PLA / ASA / PETG
    • Musical Tunes
    • Diagnostics/Disallow unhomed moves
    • Diagnostics/E steps calibration

Electronics backplate

I've also set a exectronics backplate (to be a cut of alluminium or polycarbonate up to 4mm), you may find it in thingiverse.com.