Body turn/roll

[zeroaxe]

Well, I got a dolly similar to this one

I use it for the chassis. When I first made it and got the chassis up there, the steel plate I used squealed under the weight of the chassis as soon as I turned it upside down. So after some extra bracing in place, it doesnt bend as much as before. Although it works for the chassis now, it wont work straight 'out of the box' with a body. The body will hit the upright posts like the pic above. I need it to go the full 180°.

wrenchnride247, although those hoops(I ahve seen them before too, and they seem great) will work, I dont have the space to roll the body over. Plus, it is not as 'portable' as a dolly, unless you somehow rig some wheels to it to push it around once it is rolled over.

yetibone, I am with you on this one. The only way to safely turn the body over without ripping the dolly supports(that attaches to the body) or mounting points on the body itself, is to rig up some extra bracing through the body itself, and then some triangulation on the dolly supports to spread the load. Thing is, this needs carefull planning, as the triangulation braces might hit the ground or the horisontal bar between the legs



Hmmmmm......

[wrenchnride247]

You got the right idea Zero :agree: . Another thing to think about is the center of gravity for the body. What I mean is, the balance point for the body when you "flip" the body around to get to the bottom. So the body doesn't "flip" to fast and uncontrollable, and cause body flex also. The point where the rotisserie pivots, needs to be as close to the center of gravity of the body as possible. Hope this makes sense (I'm confused now )

[zeroaxe]

I agree, but I think if you want to get to the lateral(?) or horizontal line through the body where it will turn only on 'demand', you will have to go through panels. if you put a horizontal bar through the windows, the bottom would be too heavy compared to the top. The way I see it is the only way to turn the body safely beyond the point where it 'falls over' in the direction of the turning, will have to be some kind of braking/friction system.... Am I close?

[yetibone]

Originally Posted by zeroaxe

I agree, but I think if you want to get to the lateral(?) or horizontal line through the body where it will turn only on 'demand', you will have to go through panels. if you put a horizontal bar through the windows, the bottom would be too heavy compared to the top. The way I see it is the only way to turn the body safely beyond the point where it 'falls over' in the direction of the turning, will have to be some kind of braking/friction system.... Am I close?

You are correct. If you make the point of rotation at the bottom of the front and rear window openings, the body will be bottom heavy. If you build a rotis like the one pictured a couple of posts above, the body will be top heavy.

If you drill through the rotis' pipe in 45 degree spaces, you can lock the whole assembly from rotating at 0, 45, 90, 135, 180, 225, 270, 315, and back to 0 degrees from level. Most all engine stands have holes drilled through the receiver for it's engine attachment mount to lock the engine block from rotating. Some have one set of holes, some have two sets 90 degrees apart.

You'll likely not be able to make this work effortlessly by going through the front and rear windows. Unless you find the body's longitudinal center and make holes through it for the rotis, it may be more than a two handed job to rotate the body.

[wrenchnride247]

Yeti, having holes in the pivot is a must to keep body where you want it, but you guy's need to think "outside the bug" . It doesn't matter were you mount the body as long as the center of gravity is close to pivot point of rotisserie. I've drawn a "manual cad" version (don't have new auto cad '07 loaded at house yet). The dotted line is the pivot point. You just have to find the "sweet spot" to balance the body. The tubes that attach to the pivot have holes to help "find" the center point. Pictures are better than words IMO.

[yetibone]

We're on the same page... . I was only sacrificing ease of use for simplicity's sake.

What you have depicted in the manual CAD program ( ) looks perfect for the job. It could even be easily strengthened by incorperating the stock bumper mounts... :agree:

[zeroaxe]

Hmmm.... interesting indeed!! Gad I picked the brains of you folks. Seems that this is exactly what I was after! Ijust need to get the right materials that can handle the load without bending Thanks for the input and the hard work for the "Manual CAD" version :agree:


**please ignore the "thumbs down" icon in the topic line, dont know how I managed to get that in there!!!?**