MPMD Heatsink Casing

I found that the bowden connector on the heatsink of the MPMD was a little problematic. It is held in place by a single grub screw and with the torque of the bowden tube flexing it tends to loosen over time. I decided to try and come up with a simple printable solution so I designed a new casing for the heatsink which includes a snug collar for the bowden connector. I hope this collar will take some of the pressure off the allen screw by limiting the movement of the connector.

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