Now I have confirmed my design works in operation, I have published my custom mounting bracket design which I needed to enable the ERCT filament buffer to work with the #ERCFv3 #3dprinting #ercf
https://www.printables.com/model/1554025-erct-filament-buffer-mounting-bracket-for-2020-ext

Took some investigation, but I have solved the binding problem of the linear rods/bearings which the selector runs along. Took out the rods to check for straightness. Rolling them on a marble slab confirms a subtle bend in both of them. But by marking the face on the inside of this curvature on both rods I was able to reinsert them so they both curve in the same plane, and now the selector does not bind at points along the axis. #ERCF

I think the ERCFv3 is now functionally complete! This rebuild only drew blood 3 times. Calibration next. #ERCFv3 #Voron #3dprinting #ERCF

Some minor modifications and I have my Siboor ERCFv2 kit LED pcb working in the ERCFv3. I think I have solved the ERCT filament buffer mounting too. Just some wiring modifications to finish and I can do the final assembly. #ERCFv3 #ERCF #3dprinting

Now the ERCFv2 is in pieces, assembly of the ERCFv3 can commence. Most of the components apart from the 3D printed parts will be reused in this upgrade. #ERCF #ERCFv3 #3dprinting

The next challenge is the software set up. This seems very poorly documented compared to the build guide. I may have to get involved in helping improve that. I have not found anywhere that mentioned you need to build and flash firmware to the board. I guessed this was needed from having run into this headache on my Voron 0.2 build. Found the manual for the BTT MMB board online which details how to do this, but no mention this was needed in the kit or ERCF documentation. #ERCF #Voron #3Dprinting