Simon's adjustable Y motor bracket
by Wired1, published
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Redesigned Y motor bracket for the Mendel Prusa 3D printer. Features top tensioner bolt to make belt tensioning easier, and it works.
Modelled in heeksCad. It is intended to work with Y-carriage I designed and which doesn't have a built-in tensioner.
The photo below with it on the end of my Mendel Prusa is to show how it fits with the rails and is not where it goes on the machine :)
Inspired by two earlier designs both of which are good ideas but needed further development - this places the adjuster on the top rail where it is easy to access and the whole thing fits better.
Just print it - I didn't need to drill out any of the holes on the one I printed.
3 perimeters, 3 layers, 0.35 nozzle, 0.25mm layer height, 25% infill at 90 degrees fill angle.
I have removed the earlier version that was a bit too tight and replaced it with Y-adj_S2d which has a corrected top rail arc.
The adjuster screw is a M4 and needs to be 40mm or more long.
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Simon's adjustable Y motor bracket by Wired1 is licensed under the Creative Commons - Attribution - Non-Commercial license.
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