Cover for the Z axis belt drive - and front drag chain support bracket.

I need to finally devise a cover for the Z axis belt drive. 

And here's the actual installation, including the linear encoder. I don't recall why I modelled the encoder on the back of the ballscrew whereas it's installed at the front. Lost in the mists of time, that one...

From the main machine assembly, here are the critical components. The belt itself isn't modelled, as Fusion doesn't manage that yet. Solidworks and Inventor do but it's not a big deal:

Something like this should work:

Section view:

But with some lugs to secure the cover to the ballscrew bracket:

Looks good.

And fits like a glove. I barely need to use the M6 fixing screws, as it's a nice snug fit over the motor bracket.

While I'm in Fusion and running the printer, here's a bracket for supporting the front drag chain:

Wow, that turned out well. In fact I will print out another one, so there are 2 of them supporting the lower section.

I think we can say the front drag chain is done now.