This Blog is about home engineering projects. Progress in physics is getting very difficult as can be seen by both the decline in frequency of discoveries, and the cost. The LHC cost more than 13 billion dollars, just to discover one particle. Even as the fundamental sciences become more difficult, the applied sciences (Engineering) are getting easier. Consequently, we are in the Age of Engineering.
Thursday, February 1, 2024
Voron Trident Can Bus EBB36 X end stop relocation
Friday, January 19, 2024
Voron Trident Can Bus EBB36 upgrade
Note: the printhead LED's connector is reversed.
also reversed is extruder motor (fixed in config).
There was a sticker on the TMC2209 that prevents heat sink to stick.
Recommended order of assembly:
Remove cable chains. Install both X and Y endstops.
best STL that I found:
https://www.printables.com/model/429169-rigid-ebb36-v12-mount-on-voron-cw2-stealthburner-t
Using BTT u2c 2.1
BTT EBB36 v1.2
https://github.com/EricZimmerman/VoronTools/blob/main/EBB_CAN.md
The End stops must be moved, also need mounts for umbilical:
https://mods.vorondesign.com/detail/ho9WEyf6msbGKhTbtM59mQ
The X-endstop uses existing mounts on the carriage.
Can Bus Cable
I used silicone wire (red/black) 18g and 22g and 1/4 inch nylon sleeve.
You have to widen the end of the
sleeve by cutting it off, putting it
on
a x-acto knife and re-melting.
It needs a stiffener 3mm nylon or PTFE
I think the opposite twist was good,
making the sleeve a bit easier.
The stiffener (either ptfe or nylon)
was critical.
It was somewhat difficult in spite of
seeing it done at work so many
times...
Very important to verify that the connectors fit well.
Setup canbus on voron: (i used 500000, and i think by doing it in this order, it propagates).
https://github.com/rlaferla/Voron/blob/main/CAN_Bus_Guide.md
Setup u2c, follow instructions from:
https://github.com/bigtreetech/U2C/issues/4
setup ebb36
Follow instructions from:
https://github.com/Arksine/katapult
and
https://github.com/bigtreetech/EBB (klipper build settings)
Wiring:
24v probe is problematic.
VERY IMPORTANT, don't forget to remove the USB jumper on the ebb36. Also, if your canbus cable power works, the power LED lights up on ebb36.
References:
https://forum.vorondesign.com/threads/can-bus-upgrade-information-and-sources.323/
https://bttwiki.com/U2C.html#optional-wiring-diagram
https://lab4450.com/product/ebb36/
https://os.ratrig.com/docs/toolboards/btt/ebb-36-12/
Commands:
edit canbus settings
sudo vi /etc/network/interfaces.d/can0
update canbus #must reboot#sudo ifconfig can0 down;sudo ifconfig can0 up
Show canbus speed:
ip -details -statistics link show can0
hit reset button on EBB36 to bring board into remote mode.
Scan with klippy
~/klippy-env/bin/python ~/klipper/scripts/canbus_query.py can0