ADXL345 Accelerometer mount for Satsana Dual 5015 Fan duct

Looking through the options of various mounts for the ADXL345 I didn't find the perfect one for me, so I decided to make it myself.

I'm in the process of upgrading my “old” Ender 3 Pro with Klipper and a direct drive extruder and aftermarket hotend.

Since I decided on the Satsana Dual 5015 fan duct, I designed a mount that attaches to the bottom screws of the hotend cooling fan (original 4010) and wraps around the bottom of the fan duct. You could also mount it on the top of the fan duct, since the dimensions there should be the same.

It stays neatly out of the way and leaves lots of room below, so might be an option for a permanent mount, if you want to leave it on.

Probably not the best mounting position for ultra accurate results, since the vibrations on the fan duct are different than they would be on the hotend directly, but I gotta make due with what I have :)

Printing and Mounting

I printed mine with the “front” facing the print plate, but the other orientation probably should also work, as the well is small enough for most printers to get right without supports.

Print with whatever filament and settings you like. There's not much that can go wrong.

The holes on the fan side are wide enough for M3 screws to fit through and fix the mount and fan to the duct (I think I used some of the original screws and didn't measure them. Probably M3x16).
While the ADXL345 mounting holes are slightly undersized, so the M3x4 screws (M3x5 might also work) screw directly into the plastic without the need for inserts.

There's a well in the model for the solder connections to fit into, to allow the board to sit flat against the model and duct housing.

I added the (admittedly messy) FreeCad 1.0 model files as well, if someone wants to adapt it further.

Might also be a base to add on further modifications. I'm considering a nozzle cam and lights at some point, if I keep on tinkering with the printer in the future.