Piper 2 - T-Rex 5015 Radial Fan Mount

thingiverse

The standard axial fan design simply wasn't providing enough airflow or cooling for high-speed/higher temp PLA printing on the Piper 2. I didn't want to re-invent a fan cooler nozzle just yet, but I needed the air flow that radial fans produce. Packaging is a challenge since there's less than 25mm to position a vertical fan either in front of or behind the Piper 2 X-Carriage. With another Piper 2 builder's suggestion, I'm using the T-Rex MK3 fan. I've asked the T-Rex designer if he can make the mount hole smaller and extend a flange so the 5015 fan can snap into the nozzle. My tests have been good with the current T-Rex MK3 design. The yellow part is the fan/cooler nozzle mount and the red part is the T-Rex MK3 Nozzle: https://www.thingiverse.com/thing:2022857 You can purchase 5015 Radial Fan (12v, 24v, and 5v options) here: https://www.amazon.com/gp/product/B07DB7DLMM To assemble the parts, you'll need: * 6-32 x 3/4" taper head screws with nuts. I used 1" long screws cut down to 3/4" * 6 x 3/8" sheet metal screw - holds mount and T-Rex fan together. Note: Round head screws may scrape on the gantry EMT pipe. The T-Rex nozzle is centered to the E3D nozzle, about 1mm up from Z0 and about 13mm back. The T-Rex nozzle directs air flow down on print, not across the top of the nozzle. Here are some Benchy images - Left hand benchy is T-Rex and 5015 radial fan, right hand benchy is axial fan cooler. Both were printed at 150mm/s and 228C on a heated glass bed.