Radio Problems!! Please help

[arpus maximus]

More updates!

We got the steering working! We were originally going to use a van door motor and a pulley system with a belt to turn the wheel, but soon found that it was impossible to make the belt tight enough, and it would not grip. We scrapped the idea of using a sprocket and a chain because we've heard that chains are fidgety and no good most of the time (unless they're set up very precisely). So, instead we removed the steering wheel, which revealed a threaded bolt. We screwed on a threaded connector and attached the van door motor's axel directly do this threaded connector. With this setup, obviously the motor would just spin around rather than spinning the wheel, so we made a brace for the motor to keep it from spinning. Lo and behold, it turns the wheel like magic!

The brake system hit an unexpected snag today... potentiometers are far beyond me and, for the scope and time constraints of this project, are too difficult to use. So, instead of holding back on the joystick be the brakes, we will have the trigger engage the brakes and the top button disengage them. This is not exactly the most desirable setup, but it is the best and most efficient way to do what we need to do.

The brake setup uses a power window motor with a sprocket welded to the axel. We then mounted a sliding drawer rack and secured a chain to the top. When the gear spins, it pushes the rack into the brake pedal, slamming the brakes. However, the gear slips a LOT so we will have to put pressure down on it to prevent it from slipping. Either that, or use an entirely different idea. We have a week left, and we are far ahead of schedule, so anythig is possible.

ARP