@Matteo_Ragni wasn’t referring to any reply specifically, but replicating the X and Z axis on the front side really is the only realistic way of saving this design. But at that point, you’ve basically already got a full-on portal design.
#Saintflint.
What else!
Bondtech QR will give you the extrusion force and reliability you need.
@Niklas_Smth
With this design you’re probably not able to print faster than max 30-40mm/s. In principle every extruder design is able to handle that. Even if you replicate x and z to the front you have to add so much mass that you can’t print faster (you need more current, stress the stepper and drivers too much, more backlash in the belts and so on) . Therefor it basically doesn’t matter which extruder design you choose. Sorry for that, but this will be the reality.
Sounds like you are pushing the limits of what is thought possible. All great inventions come from a mountain of failure. Once people were call crazy for trying to fly… anyway I would also like to see future update of this printer, from every design we can all learn something, well some of us anyway.
I think like everyone else I will be fascinated to see this printing at 30mm/sec or faster at the extremities of the arm. From what I can see (and I’m not an engineer) it’s going to wobble like crazy. For a cantilevered printer like this you need a very heavy base for the arm, which you might have, but its not evident from the photo.
If we are proved wrong then we will have all learned a very valuable lesson, hopefully without anyone being rude, which is the most important lesson this thread can provide.