I'm specifically looking to adapt the rear thru axle (12x142mm) to fit onto a standard QR hub/axle on my direct drive trainer. Unfortunately, my trainer is too old (original Elite Turbo Muin), so it cannot be converted using a converter like Wahoo and Tacx have. I think I have to add things to the bike side if I want to make it work without having to buy a new trainer. I feel like it should be possible to have a piece fit in to the drive side of the thru axle to let a QR skewer screw in and another piece on the non-drive side to fill in the gap and sit on the axle itself. I would then send the skewer through the whole thing.
Is this possible? If not, why?