I'm just happy to be finding people willing to volunteer some machine time. All of the pediatric wheelchairs I've seen have these crappy plastic handles (similar to the brakes on a bicycle) for adjusting the tilt of the seat of the wheelchair. They're complete and utter junk, and they break really easily. I think the same manufacturer makes them for braked wheel walkers as well. I've been tinkering in Google Sketch-up with a simple aluminum or mild steel replacement (powder-coated) as well as a new fastening system.
While a lot of people wouldn't even think about it, those parts wear out quick, and really aren't well designed to begin with. However, there aren't any better solutions out there. I often see a lot of tool box stickers that say something along the lines of "the guy with the most tools wins" and while it's always nice to have lots of tools, I tend to think that the guy that gets to work most with his tools wins.
As for this thread, I know there are some forum members that have children with special needs as well (or know someone that does) or even disabled or elderly veterans. I urge any of you that might need a hand in getting something designed or built to contact me! My help is always free and will remain so as long as I have a pulse.