Layer fan duct and mount for Direct Drive Extruder by AndrewBCN

Last crawled date: 2 years, 11 months ago

This is a layer fan duct and mount kit for Marty Rice's awesome Direct Drive Extruder, when used with an E3D hotend. Together with the E3D 40mm cooler fan duct and mount kit I published earlier (thing #569877), it provides a complete cooling solution for Marty's extruder when used with an E3D-type hotend.
Because of space constraints, a commonly available 5015S 12V blower (centrifugal) fan is used, a mount piece is provided that attaches the fan to the extruder body. The mount piece uses 1 x M4 25mm bolt, washer and nut to attach to the fan, and 1 x M3 20mm bolt, washer and nut to attach to the extruder body.
The OpenSCAD source code for the layer fan duct is based on an earlier design by darco (Robert Quattlebaum), I cleaned up the code a little bit and modified it for this particular application.
The OpenSCAD sources for both the fan duct and mount piece are included so both parts can be further remixed.