I pulled the two (x min side) used ender motors off the LR4 and put them on johnny5 (v5) for xy movement because the bigger cnc motors are so loud.
Not loud anymore. Want a quieter v5? One datapoint says use smaller motors. I plan to take the xmax motors off the other side of the gantry for the other smaller printer (herbie) next, but need to run some epoxy fills first in the morning.
For the last year my LR4 “flowrida” cnc has been running with klipper from two different reclaimed 3d printer control boards. 3 channels (x an z) on a mini e3v3 and the 2 y channels on a trigorilla board with 2 bad channels. This setup was surprisingly simple to get working. With my latest request for used boards. I picked up an skr pro that has now been put in place on this cnc to replace those two boards that were not well secured. Rewiring and securing the board mount are complete, but reworking the config file has been a bit of a challenge. The cnc runs on 12v and each time the system motors are enabled to move, klipper shuts down and was giving an IFCNT error. This error has been seen by others online when the motors are not wired to power (not the issue). It is also seen when jumpers are incorrectly set next to the tmc 2209 drivers (those were set correctly with the diag pin bent on each one). After a few evenings of testing by commenting out the 2209 driver section and googling and stewing, it turns out that the uart channel was set incorrectly and the tx pin cannot be included in the setup. Answers as to why are not apparent at this time, but it works now.
Same error showed up on the octopus pro board that replaced the blown one on the johnny5 printer. The z channel uart pin is bad, but an extra unused channel worked instead and the error is gone. The h2v2s lite oozes and the nozzle backs out with heat… Still working on that. Finished the filament buffer… Getting to the chameleon. The touch screen stopped working. Shes dead Jim. I put a pi 5 on it and a spare smaller touch screen on so johnny5 will be operational tomorrow.
Herbie, the smaller high temp v5, is throwing an under temp error on the extruder, so still more minor things to fix…
