Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Re: Crazy step idea!
A couple of problems with your idea:
The way you have it arranged, the motor is going to travel, half the distance of the step. That is going to make it difficult to mount the motor. It's probably going to have to be on a track, too. That's just extra complication.
Or have you just drawn the arms that link it to both steps? If that's the case, you've got two long rods sideways across the full width of the Jeep, which will be likely to catch on trail obstacles and be damaged.
Also, the winch motor is a relatively high-speed motor. It could run at 6,000 RPM, or more. Your arrangement only has it making a few revolutions between positions. It won't reach full speed, but it will be going pretty fast when it hits the stops.
You're going to need switches to stop the motor at its limits, and they will need good protection against mud, sand and salt spray. Also, the motor will need good protection from the elements.
A winch motor is way more powerful than you need, and way too fast. If you want retractable steps, I'd suggest that you start with a window or power antenna mechanism from a junkyard.
Instead of the steps sliding out, consider supporting them from four links, maybe six inches long. Then the step can swing down and out. Swinging the steps will be easier to engineer than a slide, and easier to repair when it gets banged up.