Printrbot Second Cooling Fan by matt448

Last crawled date: 3 years, 1 month ago

[ UPDATE ]: Crap.... I just found a big design flaw. The shroud hits the cap head bolts on the right side of the heated print bed. You have been warned. Temporarily I replaced the cap head screws with a lower profile pan head but I need to redesign the shroud so it clears the stock cap head screws. YOU MUST REPLACE THE STOCK CAP HEAD SCREWS WITH PAN HEAD SCREWS. There is a photo showing the type of screws I used. This may only apply to the E3D V6 hotend since it is shorter. The stock hot end may not have the same clearance issues. I would recommend manually moving the X and Y axis's to all the possible positions to check for any clearance issues with screws.
I was having some print quality issue with areas that were furthest away from the stock cooling fan on the left side of the Printrbot. I saw the Ultimaker 2 has cooling fans on both sides of its hot end and decided to rig up a temporary second cooling fan mount on my printer and try some prints. The quality of my prints improved dramatically so I set about designing a permanent second cooling fan mount and shroud for my printer.
This is my second design and it is still a work in progress. I'm planning on adding a small bracket to the fan mount and the shroud needs to be smoothed out. Even though it needs some small tweaks it is working well for me so I thought I would post it up in its current state.
One thing to note is I'm using the E3D V6 hot end on my printer so the current shroud is designed for that. I haven't tested it yet with an UBIS. I designed this in two parts so the shroud could be adapted for other hot ends.