Hallo,
I want to build an Hevort in extra Large. Now I saw my print bed in aluminium (790X790X6) will weight 10 kg.
Now I am not sure which Nema17 stepper I should choose. I am using the duet board with 3 stepper for the print bed.
Which Stepper could you suggest for my construction

Greeds

Joel

I saw a huge printer the other day that had a fixed bed and the whole corexy-system could move up and down. This seemed to be a good solution. Otherwise I suggest fixing the bed on each corner and using four lead screws driven by one big beefy nema23 motor. All screws are connected with belts. To make sure no rod goes out of alignment in relation to the other ones.

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http://www.marinusdebeer.nl/

This link is a selection calculation page of a motor manufacturer, and the calculation results can be referred to

[www.orientalmotor.com]


Usually use less rigorous calculations in most cases.
Different people simplify differently