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-finished mounting prototype on nano drive

-added new and improved bearing holders

-redid the surgical tubing tension more securley and tighter.

-added mechanical stops to the tension so it doesn't over correct.

still not sure if surgical tubing will be enough

FIgure out how we want to tension:

--> protoype the idea with pistons to see the grip and compression (may need parts printed to do this properly)

--> test with code to see if it will work without pistons

eh