qu-bd MBE water cooled extruder

This is an experiment to water-cool a qu-bd MBE extruder. It is designed to mount directly on an ord-bot hadron carriage, but could be mounted on almost any printer.

It will need a bowden drive to feed the filament. It uses a GPU heatsink 40mmx40mmx12mm (ebay "Aluminium Water Cooling Heatsink Block Waterblock Liquid Cooler New For CPU GPU" goes for $4.99 inc shipping)

It uses 2x 5mm screws/nuts to hold the cooler flat against the MBE body.

I plan to drill the two bolt holes in the M