kf9j
RRCRat Rig Community [Unofficial]
•Created by kf9j on 3/4/2025 in #fix-my-printer
Lost communication with Toolboard
I am bringing up a v-chonk with standard parts including skrat 1.0, and EBB42 V1.2 . All the components appear to be working: I can home, extrude, generate a height map and run the other calibration macros. But when I try to print anything the pi loses communication with the toolboard just after the prime_blob is started and the z axis starts to rise. It is very repeatable; not at all random.
So far I have:
-changed the Pi from a 3 B+ to a 4
-changed the USB cable to a higher quality
-Confirmed the usb ends are securely attached
-Tried to secure the usb c end with and without cable ties
-confirmed the 24V to the EBB42 is stable
-tried moving the cable away from the stepper motors
-read about every post I can find on the similar issues
-made changes in the /boot/config.txt to delay usb drops
-moved usb connections around on the Pi to confirm there is not a usb port issue.
-confirmed from the lsusb logs that the toolhead disconnects and then immediately reconnects.
I am out of ideas on what to do next. I would be grateful for any suggestions..... thanx.
ratos-debug.zip
897.87 KB
3 replies
RRCRat Rig Community [Unofficial]
•Created by kf9j on 2/1/2025 in #ratos-support
v-chonk: does not return to xy safe-home location before homing z
I am having an issue with homing on a v-chonk, RatOS V2.1 RC3. When homing z the tool head stays at location 0,0, which puts the superpinda sensor off the bed. Since the sensor can't trigger, the bed crashes into the hotend. I have tried to center x and y before homing z, but the carriage moves from the center to the homing position when I do a G28 Z.
23 replies