Triple leadscrew belt driven bed for Hypercube

**update 2 22-12-18** I have tried adding a 10mm linear shaft to each leadscrew in the hopes that that would fix the z-wobble, it did not. I have now abandoned leadscrews and am going back to one of my previous attemps: a belt driven bed. I am leaving this thing up for anyone who wants to experiment with this themselves.

**update 1** A weakness of the current design is that the leadscrews are relied upon for keeping the build platform steady in the xy plane, which they are not meant for. The new design will incorporate 3 10mm linear shafts to adress this.





The goal
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I wanted to completely eliminate the z-banding/noise caused by stiction in the lineair bearings/bushings on the z-axis guides. I did this improving rigidity in the z-direction with a belt driven triple leadscrew build platform.

results
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The end result is an absolutely rock-solid build platform. No give **whatsoever**. You also get about about 220mm build height out of thi