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@oliof @deckingman Sorry, I pulled the thread a bit offtopic.
A delta would need some sort of probe, no matter how good the build is.
In my case it's an 18mm capacitive probe, which doesn't care about surface material, as long as it's the same stack of materials it probes. (no hidden screw heads or magnets at some points).My main intention was to vote for DD extruder instead of Bowden. (and promote my idea of an offset-effector)
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@o_lampe can you get a round stepper motor with a hollow shaft? I was thinking that you could mount it on top of something like a Sherpa, and use bevel gears to transmit the power to the hobbed inserts. That would centralise the mass and shape of the extruder drive. There would have to be a small bend in the filament paths after the stepper motor, to avoid the shaft, but I don’t think it would be that extreme.
Ian
TronXY X5S with Duet 3 MB6HC and Roto toolboard : Cartesian bed-slinger with Duet 3 Mini 5+ WiFi and 1LC : RRP Fisher Delta v1 with Duet 2 Maestro : Polargraph with Duet 2 WiFi
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@droftarts I'm always open for new ideas
I tried to picture how to combine the beveled gears with dual drive gears. It would need a two stage drivetrain to avoid offset.
I'll try to draw a sketch (and post it in a new thread)Sorry again for OT
Olaf -
@droftarts speaking of hollow shaft extruders, you have seen this, right? https://www.youtube.com/watch?v=YTADdWiFQnI
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Taking about these lightweight delta extruders, have you seen this:
https://www.youtube.com/watch?v=eI0tD69wD18 -
Nice solution there but it is also top-heavy.
