Mendel X Axis Motor Bracket

by rhys-jones, published

Mendel X Axis Motor Bracket by rhys-jones Sep 23, 2010
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Mendel X Axis Motor Bracket by rhys-jones is licensed under the GNU - GPL license.

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The previous Mendel X bracket was compact, but led the toothed belt along a tortuous path with tight radii and reverses of direction. I've had the X axis belt snap (which costs far too much!), after just 4 sets of Mendel parts, and others have told me the same. With this, the design is larger, but less prone to belt failure. We've printed about 8 Mendels with it now with no sign of belt wear.


The X-axis ground rods need to be shorter, at 463 mm long. Also the X axis spacers and two sets of bearings and associated fastners are no longer needed. The motor is attached by 4 shorter, M3 x 12, cap screws not on the original BOM. Finally, the belt needs to be attached inside out compared to before, and as such the motor direction needs to be reversed.

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I'm wondering if theres a way to install one of these without having to cut the rods. I'm thinking of a slight redesign of the X carriage and the two end pieces...

I printed and installed one of these. I notice my belts make a bit of a racket rubbing on the washers with the teeth inside... I'm thinking about beveling the edges of the teeth a bit to stop the noise...

I haven't run it yet, this is just pushing the cart back and forth, or turning the motor.


It definitely runs perfectly... maybe there is a broken bearing in your mendel?

Thats interesting. We've got 5 machines with this on. They are all ok, Is it on any set of washers in particular or is it all of em?

I thought this was designed by Adrian, did you design it?

Yeh I did, Adrian did the Wiki documentation though as he managed to build it before me. I thought I'd dump it here too as more people seem to browse thingiverse for mods