Raise3D N2 Extruder Cooler filament cover

thingiverse

I've been having issues with pure PLA filament jamming in my Raise3D N2+. The company recommends using Polymaker or their own brand, which could be due to the blend they use. However, the problem with pure PLA on this printer is that the extruder body gets hot, and when combined with the enclosed acrylic cover, it causes the PLA to soften. When retraction becomes heavy in the model, the extruder ends up eating away at the soft PLA. This design allows for a cooler environment for your filament and enables you to attach an extra fan to your printer! Print Settings: Rafts - Doesn't Matter; Supports - No; Resolution - 0.2mm; Infill - 20%; Notes: You need to print this in PETG or something with high temperature resistance, as PLA is prone to warping. PETG is my top recommendation for printing this model. To assemble the part on your printer, use the standard bolts you secure your acrylic cover with, but only two can be used with this design. Next, test if your print has properly aligned with the channel by feeding some filament through and loading it. Then, plug a fan into the 12V constant ON plug. You can see where to do this in the photo below (thank you TobyCWood for providing this helpful image). I used a 10mm fan from my first Prusa i3 kit, but you might need to tape or glue your fan into the housing port depending on its size. Use two M3 x 20mm hex bolts to mount the fan on the print. It shouldn't require much pressure to screw it down, as the holes are just small enough for the bolts to dig in a bit.