Typhon's Airtripper BSP for MakerFarm i3v / M3 Mount

thingiverse

This is a modified version of the great Bowden Extruder featuring the BSP fitting by Airtripper. The modifications I made are designed to work better with the MakerFarm i3v printer and its existing hardware from the Wade's geared extruder kit. I also adapted the mounting holes for M3 screws, which are usually more abundant in users who own Prusa i3 and i3v models. The main changes I made here are: 1: The mounting legs were extended so that screws can be easily accessed from the top of the unit. This is especially important when using a tapped hole instead of a nut and bolt system like the original Airtripper design used. 2: The mounting holes were shrunk to use M3 screws, which most Prusa model users will have available in abundance. 3: I extended the 25mm screw mount to 30mm for better uniformity, allowing the use of three 3M x 30 mm screws instead of two 30mm and one 25mm (it's easier to source parts of the same size than multiple different sizes). 4: I created a custom mounting plate to attach the unit above the left z axis rod on the MakerFarm i3v (This part is optional, designed only for the i3v 8" model by reusing parts from the wooden spool mount) 5: I tried to reuse some parts from the Wade's extruder like springs and the 50mm screw to tension the idler, a 20mm M8 rod for the bearing, and three 10 mm screws used to attach the motor to the Wade's by using them with the mounting plate and BSP connector. Required hardware: 3 - M3 x 30mm socket cap screws (One included with the i3v) 1 - M3 x 6 mm button cap screw 3 - M3 x 10mm socket cap screws (5 if using the included X Plate to mount to MakerFarm i3v) (Three included with the i3v; the other two can be a bit longer if 10 mm not available) 2 - M3 x 30mm screws (from the Wade's geared extruder kit) 3 - M5 x 20 mm socket cap screw 2 - Washers (from the Wade's geared extruder kit) 2 - Springs (from the Wade's geared extruder kit) 1 - Nut and small drive gear from the i3v 1 - BSP fitting and nut 4-50mm screws and two nuts per each of them to keep an additional grip, instead of using 7 Steps for assembly: 1. To attach the Typhon Airtripper extruder to the i3v use 3 M3x10 mm from top. 2. To attach the idler to extruder use M3 x 30mm screws. You will also need a nut and washers (both of them 50mm). This can be used to make better tightening instead using hex key, since longer travel helps with hand tightening. 3. The rest is assembling by steps given by Airtripper's instructions