Sequential Mod for H-Pattern Hall Sensor Shifter ("ODDOR Gear")

thingiverse

This is a mod to make the hall sensor H-pattern shifter from Aliexpress/Banggood etc. sequential. My shifters PCB is not the same as the Project D shifter in the video from Sim Racing Corner. On my shifter the hall sensors are much smaller and soldered directly onto the PCB without the bent legs. So I'm not sure it will work for every shifter of this type. My shifter from Aliexpress has "ODDOR" lettering on the housing and the knob, but I'm not sure how many different revisions there are. The simple idea of this shifter is to put 10mm diameter magnets in the cutouts of the print which will the actuate the hall sensors from the top (in normal H-pattern mode the hall sensors are actuated with the magnet ring on the shift knob from below). Before you stick the magnets into the cutouts you need to figure out the correct orientation of the magnets! The thickness of the magnets doesn't really matter, of one magnet is not strong enough to get a stable signal you can just stack 2 or 3, I needed to stack 2 3mm thick magnets to get reliable shifting. In case the print doesnt stay inside the slot, you can just wrap a rubber band around the print and the magnet on the shift knob below it. It's not a pretty solution but I didn't have time yet to revise the design. The tolerances are pretty tight, depending on your printer calibration you need to maybe print it slightly bigger or smaller to get a good fit. I also include the step and FreeCad files if you need to customize it to your shifter. This is not completely finished yet but it's working and I wanted to upload it, if I find some time I will try to add some photos later.