CTC Dual Extruder Fan Mounts

thingiverse

I've been using the CTC Dual Extruder for a couple of days, and it quickly became apparent that adjusting the extruder heights would be a major headache. Initially, it was relatively easy with clean nozzles and all, but reaching the grub screw to adjust the height was still quite a challenge. First, I had to remove the cooling fan, catch the spacer and heat sink as they fell out, then reassemble everything - a tedious process to say the least. The problem with the stock fan mounts was threefold: 1) They failed to provide adequate cooling for the fans. 2) Accessing the nozzle grub screw was difficult. 3) The nozzles couldn't be adjusted while still hot. So I set out to create a solution that addressed these issues. I designed new fan mounts with two key features: the fans are tilted up at an angle, and each mount has a groove that allows access to the locking grub screw. To secure everything in place, I reused the original mounting screws to hold down the new mounts, along with the original spacer and heatsink. Two M3 x 16mm screws are also needed to remount the fans in their new position. Additionally, a groove must be filed into the original heat sink for access to the grub screw. By temporarily attaching my left heatsink to the new right mount (and vice versa), I used the mounts as a template to determine the optimal size of the groove. With this setup, adjusting the nozzles while still hot is now possible and accessing the grub screws is straightforward. I hope you enjoy using these new mounts. I printed them with PLA at 180 degrees Celsius and a bed temperature of 57 degrees Celsius.