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Bus roll-over jigs & rotisseries...

Posted: Sun Nov 24, 2013 5:12 pm
by Merlin
I vaguely recall stumbing upon info' & plans for a split bus rotisserie a few years back. I haven't been able to find really definitive photos of these and I've only managed to source haphazard info' on them from a few who've tried it.

I'm more keen on a roll-over with steel casters on both sides and some custom touches, as opposed to a rotisserie. I have an idea of what I'd like, but I really would like to know from those who've done it, where one should be bolting the jig to, what type of steel to use, what's involved, etc.

If you can help, please be so kind as to click on the Reply button and share. ;)

Thank you.

Re: Bus roll-over jigs & rotisseries...

Posted: Sun Nov 24, 2013 5:17 pm
by retrovan
Sent Splitz info on a roll over, think he did build it, and used it for his dads bus.

Why not ask him to give you the Pro's and Con's

Herman

Re: Bus roll-over jigs & rotisseries...

Posted: Sun Nov 24, 2013 5:46 pm
by Sambabus
The rotisserie bolts onto the suspension mounts, and they are made of probably 75mm x 75mm cold rolled square tubing. Pierre has a rotisserie he built from scratch. Pm him

Re: Bus roll-over jigs & rotisseries...

Posted: Sun Nov 24, 2013 6:12 pm
by Merlin
Thanks chaps.

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 3:25 am
by Barry
Did one for Sean's bus, sent it with when it went up to Jacques.
Rolled two lengths of 50mm(?) tubing into hoops, tied together on top with square tubing and bolted to the chassis ends front and back. Had feet that would slide out to either side and the whole deal was on castors/feet. It could be moved and rolled by one person, easier with two.

https://www.facebook.com/media/set/?set ... 743&type=3

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 7:35 am
by Merlin
Hi Barry,

Thanks for the fantastic photos and write-up.

Ballpark, what would it cost to build something like this?

Thanks.

Nic

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 9:14 am
by leonniel
I would also like to know!

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 8:35 pm
by Bugger
What I did was built the hexagon out of 50mm square tubing and mounted it on the front and back suspension mounts and also with a removable piece on the top to secure the to hexagons.
To make moveing it easy it I used 2 lengths of the same Square tubing then as a spacer used another tubing in between
then used a Big base plate welded togeter to the outer pieces of tubing and fitter wheels on the outer corners
so if you roll the hexagon into the wheelers then the weight acts as a the clamping force by scueezing both the outer pieces together and clamping the Hexagon tube firmly inbetween the roller frames

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Below is all the notes I have


Step one: Build a 30 degree jig out of 2 x 2 angle iron; Weld the two 23 inch angle iron sections (long point to long point) with 15 degree cuts @ a perfect 30 degree angle. To verify true degree reference length of A sq. + B sq. = C squared.

Step two: Cut your 0.23622047 decimal inch wall thickness 2" x 2" tubing @ 15 degree cuts to length. Mark all lengths, 21 inches and 23 inches. (Please see foot note). Pair the correct to plans sections in two, double check and make minor adjustments if needed. Break the rotisserie into a top and bottom, each should share parallels angles and one side. Using Jig, weld pairs, then weld pairs together. Now you have a complete multigon making a 360 degree circle, I.E. 12 30 degree angles make 360 degree multigon. Repeat this step for second multigon.

Step three: Cut your multigon "B" to a top and bottom, note location to plans. Insert "b" solid stock in bottom half and weld in place @ all four locations. Slide top half of multigon back in place and drill out a hole for a holding pin. Remove top half.

Step four: Weld "A" in place. Note "a" (receives a 2 inch x 2 inch tubing)

Step five: Make your mounting bracket arms and plates. Mount the plate's (flat 1/2" steel plate) in place on your vehicle, and get ready for some muscle work. Slide the arms in place on the multigon. Raise the vehicle to center point of gravity. Raise the bottom half multigon with all in place, steady the bottom half w/ tack welded temporary stabilizer. Weld the arms "C & D" to the 1/2 plate that is bolted on your bus. Note: the bracket arms should be removable from the "A" pockets. Note: "c & d" were designed for barndoor bus, when building rotisserie for non barndoor; mount plates in place and correct the dimension width on arms prior to welding. Allow 1/2 inch of total play.

Step six: Build a safety bar. See jpg. This is very important. You don't want the bus rolling back on your ass or squashing your precious hands! Please note safety bar jpg. Use this bar.

Step seven: Lift the top half's of the multigon's in place and safety pin. Roll that bus over, safety bar the position and fix that nasty rust to factory standards. If its worth doing, do it right!

Foot note: 21 and 23 inch length's can all be changed to 23 inches. This will simplify the layout but make the overall height taller and you should consider the height of your garage opening prior to making this change.

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 9:07 pm
by Merlin
Pierre, you definitely get a gold star on the board for that. :D

Thank you.

I'll print all of it out and see what we can organise. :)

N.

Re: Bus roll-over jigs & rotisseries...

Posted: Mon Nov 25, 2013 9:31 pm
by leonniel
Wow thx!