combo 40mm Fan Shroud

thingiverse

I'm using a Combo 40mm Fan Shroud, specifically designed by Partfan and heatsink fan. You can find the design I'm working with at https://www.thingiverse.com/thing:2864216. There are a couple of things to note about this combo: Firstly, there's a small rectangular section on Layer 0 that covers the bottom half of the inlet (where the fan blows air towards the part). This needs to be punched or cut out after printing to prevent supports from being generated inside the duct. However, since you shouldn't need any supports in the first place, this step is somewhat redundant. Secondly, my heatbreak tube is longer than usual, which means that this shroud will sit several millimeters too low for a standard heatbreak tube. If I use it on a stock i3 mega setup, it'll hit the bed before the nozzle reaches its normal position.