Motor end for Rostock

by Johann, published

Motor end for Rostock by Johann Mar 24, 2012

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Rostock is a delta robot 3D printer.

This part is the bottom bracket that holds a NEMA17 stepper motor, a pair of 8mm smooth rods and a plywood board.

Newer versions of the OpenSCAD source files will be published here: https://github.com/jcrocholl/rostock


Print three of these and install them at 120 degree angles on a plywood rectangle of 300x350 mm, with two corners cut off diagonally. The plywood mounting holes are sized to work with #11 wood screws or M4 screws, no nuts needed.

Clamp the smooth rod with 16mm M3 screws, washer on the outside, hex nut on the inside. Stainless steel fasteners are recommended.

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Motor end for Rostock by Johann is licensed under the GNU - GPL license.

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for a 1 meter tall rostock what would the recomended rod thickness? 10mm rods or 12 mm rods?

I know its a late reply, but FWIW I always use stainless fasteners on something like this. The price difference is almost nothing and it means your beautiful printer won't end up with rusty fasteners.

Looking forward to the continued development of the printer!

I would love to see the legs be able to go inverted for a ridiculously tall print area too ;)

why are you recommending stainless steel fasteners?