Comments (5)
Good thing you put the FeatureRequest here. I had posted mine on moggieuk/Happy-Hare#9
from ercf-software-v3.
Yes, I do think this is possible (although harder than it seems because of slight calibration mismatch that is amplified over a large distance (the length of bowden tube). It would require a high degree of calibration between extruder (moving original filament) and gear (moving new filament) as well as some logic to compensate.
All that to say it is one the "ideas" list but I have experimented yet...
from ercf-software-v3.
Happy to consider a PR for the enhancement :-). Have you considered the cases:
- tool change while old fragment is still in the bowden tube
- sensing the "butting" up to old filament
- gap between old and new filaments when hitting extruder
from ercf-software-v3.
Pushing new Filament behind old one is btw a good way to do this calibration.
Cut the filament before it goes into the ERCF, push the "new end" until it gets grip in the ERCF and then see if they have the a gap when both ends reach the Toolhead. Tune until you have a small gap at the toolhead (Extruder slightly faster than ERCF Gear) and then go to the previous settings without gap.
from ercf-software-v3.
Not sure why this should be challenging, I'm already using syncro extruding without any issue, so while printing both extruder and ercf are pushing the filament, it's just a matter to find a safe way to know if the filament is clogged or finished. Then the other problem is to sense when the new filament touch the old one, then continue printing with syncro enabled.
from ercf-software-v3.
Related Issues (20)
- Stallguard homing position? HOT 2
- Extruder doesn't heat up when switching filaments after print HOT 1
- Sensorless homing (selector) and travel delta when moving. HOT 3
- Sync extrusion problem: the gear motor current setting seemed do not work reliably HOT 1
- Multiple Klipper Installations on One Pi HOT 8
- Moonraker.conf Creates INVALID HOT 6
- Fatal error when changing extruder HOT 4
- The value 'encoder_sensor' is not valid for SENSOR HOT 1
- Feature Request - Add support for Mellow Fly ERCF Can board HOT 1
- Add compatibility with Spoolman HOT 2
- Feature Request(?): Is it possible to have two klipper instances HOT 2
- Latches HOT 1
- Fwature Request: Retry on load failure HOT 2
- Misleading line comments HOT 1
- False trigger of "gate empty" HOT 3
- Resume Temperature Issue HOT 6
- MCU 'ercf' shutdown: Timer too close HOT 3
- Feature request: Allow using extruder gears as filament sensor HOT 2
- variable mmu diseapear after update
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from ercf-software-v3.