flexible messes up when loading
Another attempt, this time I tried loading a flexible filament directly and it failed.
The reason is the back movement directly after loading the material. Note that I printed some flexible stuff with the MK3 but with the Mk3s this obviously is a problem, it can´t push the filament back so it winds up inside the gear. Alright it might not be a problem when the MMU2S would pull from above but for what reason is it pulling the material out anyway? And what are about using the MK3S without the MMU2S?
Alright then to another test, this time I fed the flex material to 2 and told the printer to load the material. The idler drum is not rotating.
Printer off and on again, same test this time it is pulling but it draws the filament into the gap between idler and body (see image). There needs to be some sort of downholder or the filament fed input angle higher.
SO PLEASE Prusa add a "direct feed" option to the firmware where the printer behaves like it got no MMU2S as long as this is so far from usable
this is the result when fed from the mmu2s
No difference to direct feeding, the pullback of the filament just doesn´t work.
4th time I opened the lever now and I still don´t get it why the printer is unloading the material directly after loading
I also don´t get it why the MMU2S is unloading without bearing pressure at a LOADING procedure when the material already IS under the FINDA sensor. What is the point of that? It is rotating and rotating the pulleys but of course nothing happens because it doesn´t move the bearings down. This is a not ending procedure (until the printer says to interact) of course because nothing changes at FINDA.
RE: flexible messes up when loading
Exactly the same problem 2 years after this post, my 75A flexible never loads without jamming at the bondtech gears while it's doing the so-called filament checking procedure, the loading and unloading speed is just too fast and has too many times of this movement.