Ormerod fan duct for dc42's PCB

thingiverse

This is a basic fan duct that allows dc42's sensor PCB to be installed. The duct vents air away from the bed and not directly underneath it. I switched my printer over to dual-nozzle setup with quick-set nozzles, but had issues where the filaments got stuck in the hotend likely due to overheating caused by the previous fan duct design. With this new installation problem went away for now. As far as I'm aware RRP's kit comes equipped with essentially a fan mount, designed probably to avoid similar sticking troubles in the future. Installation: Mount the heatsink so that its top and back are fully covered except on one side opposite to the PCB side, leaving that area open. The heatsink has two screw holes for the horizontal placement allowing for air flow out of it when positioned as specified above. To hold the fan duct and heat sink in place four screws will be required. Drill through the post using 2mm drill bit then use screws provided in self tapping mode with two existing dimples on PCB acting as a guide where these should go. Two bolts then fit from the top into a mount that also supports it at the rear of the hotend and into it so that it can be held in place. For printer cooling an existing setup includes using iamburny's Z axis bracket with its design built in or look for more Ormerod projects on Thingverse website