Well then! This is extremely off-topic, but maybe you can help me out with something... How would you go about mechanically stopping a shaft from rotating more than 900 degrees/2.5 turns?
I'm modifying my G27 wheel to belt drive instead of gears (because they're loud, notchy and generally not as good as belts for this application), but I can't for the life of me work out how I can stop the shaft at either end of the rotation range.
Logitech's own system is a tiny pinion at the tip of the steering column which moves a plastic rack, then a lobe on the column itself rests on stops on either end of the rack so you physically can't turn the wheel any further. I wanted to mimic that but the logistics of it when I'm using off-the-shelf parts, a 25mm stainless steel pipe as a steering column and very limited tools and workshop experience kind of put a stop to that.
Then I thought I could use some string or rope, the idea being that it would be slack when the wheel is centered and precisely long enough that it could wrap around the steering column 2.5 times before running out of slack. Great idea, right? Well, so far I've only tried 3mm steel rope and it's far, far too springy when coiled and it can't wrap around a 25mm radius anyway, so it just loads the shaft which will kill the motors or FETs quickly, I guess. I've ordered some 2mm steel rope and some polymer bailing twine to experiment with, but I have absolutely no knowledge of different strings or ropes to try.
Another option could be a sort of solenoid used in conjunction with a rotation sensor, the idea there being the solenoid is triggered when one full rotation from the centre position is made to move a block into place which will then stop the shaft from rotating by engaging with a lug or block on the shaft, basically like an electromechanical version of the Logitech system. But that's expensive, requires external power and just isn't very elegant.
Do you have any ideas please?
On topic: I happened to find an image about an hour ago showing that if you remove the screws from the front of the DFP's wheel, you can pull the Gran Turismo badge off and access the screws that hold the wheel to the base through that but it seems like more effort and you almost certainly have a screwdriver you can use to take the entire front off as I described (which you'll have to do anyway), so. Anyway, photos:
You should be able to see the larger screws through these holes. Unscrewing those leads to:
I actually completely forgot you don't have to feed the cable through the wheel to separate it from the base, there's an intermediate connector in the shaft itself. Handy!