Lulzbot Mini 25mm Heatblock fan replacement

thingiverse

Worrried by the "bad stories" about the standard 5V squirrelcage fan I planned ahead and ordered a 25x25x7mm 5V fan and made a fan duct that fits the original fan mount insert using the original hex screw. Lulzbot now upgraded their Mini to have a bigger Heatblock fan as well. Use M2x3x3 inserts to mount the fan. I mounted the fan so that it blows into the heatsink. The duct needs to be rotated slightly (away from the insert) to slide onto the hegaxon heatsink because of the tight enclosure fit at the back. BioLumo made a 40x40mm version, but I wanted to keep my Mini as mini as possible.http://www.thingiverse.com/thing:1587110 update: made the hot-insert pockets a little deeper to prevent material flowing back into the inserts and widened the screw pocket a little to make a better fit, Print Settings Printer Brand: LulzBot Printer: Mini Rafts: No Supports: No Resolution: .25 Infill: 85% Notes: Make sure to print in ABS or the duct may melt from the heatblock heat. I've not seen any deformation on my version since I've installed it.