UPDATED - Sidewinder X1 - Mount for Biqu H2 Extruder

So, I designed this mount for the H2 extruder a while ago, since there weren't many options around.

It slots securely inside, guided by the two indexes that should easily make the stepper rest against them. The extruder body is fastened by three M3 screws, two above and one below. The side bracket holds the stock breakout pcb via a couple of M3 screws which go through and fasten on the other side using two pressed-in nuts. The pcb bracket itself is a separate part which is secured to the main body using two M3 screws. I modeled it this way so it can be printed laying down negating weaknesses along layer lines.

Assembly should be fairly straightforward: the mount is to be fastened on the carriage plate with M3 screws (pay attention that the screws don't poke outside on the other side, scratching the extrusion, in case use shorter ones), then the extruder slots in and gets locked in, then the pcb is secured. Lastly the fan ducting can be mounted (i am currently using this https://www.printables.com/it/model/267010-biqu-h2-v2v2s-fanduct-for-single-dual-5015-fan-sta ) along with the probe if you have it (some options for mounting are included).

I printed it in ESun ABS+, in order to give it enough heat deflection in the case i'm going to enclose the printer. If you don't plan to enclose it, regular PETG/PCTG should be just fine, just remember to slice it to have some strength, so to give it at least a couple of mm on each side.

I don't recommend printing it in PLA, as it might creep over time, unless you know a really strong PLA blend that you're sure can whitstand heat and load.

On the left side I added a protrusion that should end flush with the X carriage plate, which allows a magnet or a piece of metal to be glued on it, to trigger the endstop, since the extruder fan would otherwise collide with the X axis stepper before the carriage plate could touch the endstop and trigger it.

All in all, it feels rigid and it improved my input shaping compensation, compared to the previous mount.

Design and description by Gaviols , licensed CC-BY.