Chimera Nimble drive shaft spacer and cable retainer

This simple spacer is designed to hold the two flexible drive shafts and cables that go to the print carriage and Chimera. Developed for a cartesian printer, it may also work for a delta but I do not have access to one to test this.

The two rectangular holes are for a cable tie to hold the cables in place and thus stop this spacer slipping down the drive shafts.

Other parts designed for my printers include:
- http://www.thingiverse.com/thing:1959901 (GT2 belt clamp (Prusa Y-axis)
- http: