That’s so awesome. I was considering going down this path as well as some components in my mother board failed(camera and fans) and i was considering going down the BTT route as well. I may give it a try in the coming weeks once the switchwire project is complete.
With regards to the PCB, it’s a bit harder to do one off pcb’s here in Australia, do you have spares when you made them? If you have spares I would be happy to pay for cost and shipping, the mod is printed, and is functional (tested on my switchwire build, so all good to go). I either have the choice of going down the PCB route or wiring harness, which isn’t the worst thing i suppose
I think the IR height sensor is a good idea, i raided my arduino box and found that i have a few of these(when i was helping my niblings with electronic projects). Wondering what the accuracy level is like.
I’m not sure yet, I haven’t gotten around to putting my AD3 back together and testing it (too many projects on the go + Work ). In theory the accuracy should be decent as the components used are very capable.