Smartrapcore Alu - Strengthened and anti resonance Upgraded Parts

These are remixes of parts for the Smartrapcore Alu by Smartfriendz.
Please see my other things for some other parts I have reworked. (I might add them all to one listing at some point).

Update please see this for improved version of the rear pulley holders: http://www.thingiverse.com/thing:1655402

X and Y (L and R) motor mounts
L and R Bearing holders (also the rear y-axis smooth rod holders).
R side xy smooth rod support with proper locating lug

With the motor mounts the only addi