 Rotisserie design 101, moment resisting connection at the pivot shaft? |
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| bondo |
 Apr 10 2007, 10:14 PM
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Practicing my perpendicular parking  Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California  |
I'm in the midst of over-designing a rotisserie.
The basic idea of a rotisserie is that the bolt on parts that go where the bumpers mount extend a shaft from the center, which acts as a pivot. What I need to know is, is a 914 strong enough that those "shafts" coming out from the front and rear just need to be held up off the ground, or do they also need to be held straight and level? I basically need to know what forces are placed on the uprights... whether it's just a vertical force, or a vertical force plus moment. |
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| VaccaRabite |
Apr 11 2007, 06:38 AM
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
If you are building one, keep it simple instead of complex.
Eastwood's twirler is complex, as it has to work for a lot of different cars. it sells, if I remember correctly, for around $1200. I built mine for $250. You do need a steel bar that goes across the bottom of the structure for stability. I would not make it adjustable height. Make a fixed height and look at some of the lifting mechanisms that folks here have made to raise and lower thier tubs on it. Frankly, a stripped 914 tub is light enough that 2 guys can lift it pretty easy. Zach |
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| bondo |
Apr 11 2007, 04:38 PM
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
QUOTE(Vacca Rabite @ Apr 11 2007, 05:38 AM)  If you are building one, keep it simple instead of complex. Haha... I'm building what may be the most complex rotisserie ever made. Hint: binding will not be a problem. (IMG:style_emoticons/default/biggrin.gif) The total cost will end up being around $200-$300, but I did get much of the materials for free. |
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Posts in this topic
bondo Rotisserie design 101 Apr 10 2007, 10:14 PM
McMark In my experience vertical plus moment.
If you... Apr 10 2007, 10:32 PM
bondo
In my experience vertical plus moment.
If you... Apr 10 2007, 10:43 PM John
If you are building one, keep it simple instead ... Apr 11 2007, 05:35 PM bondo
[quote name='bondo' post='887134' date='Apr 11 20... Apr 11 2007, 06:24 PM woobn8r Why not actually use two engine stands as a base..... Apr 11 2007, 10:05 AM Vacca Rabite
Why not actually use two engine stands as a base.... Apr 11 2007, 01:19 PM woobn8r I see yer point....
I was thinking of an adjustabl... Apr 11 2007, 01:30 PM |
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