All the connectors/bolts/washers/extrusions you need to 3D print & create your very own extrusion without the aluminium!
This extrusion is surprisingly strong
This is a work in progress and I will be adding more parts to it as I go along. All uploaded STLs have been printed and tested.
The barnut I made was broken... but thanks to Coogrr you can find a fixed single and double barnut here : http://www.thingiverse.com/thing:845489
The extrusion piece can be printed on any settings. I print it at 0.4mm layer height and no infill, it is still solid as a rock.
For anything with a thread print it at 0.1mm or as good as you can.