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| Blooze Own: An F355 Six Speed N* Build Thread (Page 65/126) |
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aaron88
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FEB 27, 12:56 AM
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I use cad for a lot. Doing the design I set up a two dimensional parametric drawing with vector style graphical stress drawings. That way I can grab the suspension with my mouse and watch all the geometry, roll centers, stresses and stress directions change in real time as I move things around. Definitely a fast way to do things.
I'm using custom knuckles, so that design is still wide open. I've been posting a bit in this thread: http://www.fiero.nl/forum/F...2/HTML/117227-9.html
I really want to use rod ends but one of my design criteria was to use off the shelf common parts from auto parts stores. And I hate the lifespan of rod ends, but they are just such a great design.
How much body roll did you account for in regards to tire deflection for the rear. I got .6 degrees (about 25lb tire pressure on 275 tire).
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Bloozberry
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MAR 05, 02:24 PM
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RCR
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MAR 05, 08:42 PM
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doublec4
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MAR 05, 09:41 PM
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Nice choice on the wheels! Things are shaping up!
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Bloozberry
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APR 01, 09:28 PM
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Sage
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APR 01, 11:13 PM
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Very impressive!
As always, nice work. Wheel/tire combo looks great too.
Glad you are able to get back at it. Looking forward to future progress.
HAGO!
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RCR
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APR 02, 06:04 PM
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Very impressive (as usual), Blooze... Looking forward to seeing what you have up your sleeve...
Bob
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Yarmouth Fiero
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APR 04, 07:15 AM
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That first frame looks great Blooz. You are right about those thin zip wheels, they do a great job in steady hands. I recently got some ultra thin wheels at a trade show just to try them. Wow, they don't last as long but they are like using a surgeons scalpel. I was cutting 2 x 3 x 1/8 twice as fast as my 14" chop saw.
Are you planning to have your final cradle welded completely closed or leave it open on the ends or perhaps some well placed lightening holes? If you leave it open, have you considered having it hot dipped galvanized before you paint it? In Halifax, Argo Protective Coatings does all our shipyard work and they do a nice job. The key is to have openings in every part...... or they'll make them for you.
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Bloozberry
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APR 04, 04:51 PM
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Thanks Sage, RCR, & Yarmouth! For Yarmouth, I've been thinking about sealing the insides of the tubes but I was only considering primer until you mentioned possibly getting the whole cradle galvanized. I'll have to look into what it would cost. The downside to galvanizing is that once it's done, it makes it a lot more difficult to make any changes that need welding. The galvanized coating makes some pretty noxious gases, not to mention making terrible looking welds unless it gets ground off.
I got the second cradle side rail made up yesterday... I was careful so both are straight as an arrow and are identical measurement-wise. I left both of them several inches too long at the back end so that I could make any adjustments in length later on.


Now to get working on the cradle cross members. Rather than weld the lateral link mounts and the rear cradle mounts on the side rails at this stage, I think it would be better to complete the square box of the cradle first. That will allow any warpage or inaccuracies that creep in as a result of that process to be accounted for when welding on the various mounts later.
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fieroguru
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APR 04, 05:25 PM
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Looks great except one thing... aren't they supposed to be mirror images of each other? It looks like they are an exact duplicate.
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