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TheTechnicalNoob
But the software needs to know what position the arms are in.
Thanks for pointing that out!
Idea to eliminate all end stops:
A centering guide is laid on top of the heat bed that has a cone shaped hole in the middle.
You place the hot end nozzle into the cone, which centers the arms equally.
If the nozzle profile is inadequate, or heat is an issue, you place a cone over the nozzle.
Then turn on the printer.
Now you know the location, and the angle of each of the arms without using any end stops.
The maximum altitude can be calculated with software.
A2