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In The Shop Shop talk, shop tools & fixtures, shop wear, anything for the shop that is not covered in another forum.

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Old 05-31-2016, 09:48 AM
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Roadster Shop Chassis--Interesting Mitering Technique

I ran across this today over at Lateral G:

http://www.lateral-g.net/forums/show...t=52986&page=2

I thought the technique for mitering square/rectangular tube was pretty interesting. I like that they are making the outside radiused instead of coming to a point, it really looks nice and sounds like it speeds up production for them. The things you can do with the right equipment!
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Old 05-31-2016, 10:38 AM
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I am going to have the guys put that technique into our new Dragon software for the square and rectangle machine.

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Bend-Tech Dragon web site:
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Old 05-31-2016, 11:05 AM
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Grabbed a few photos to share here:







[IMG][/IMG]

I like this kind of cut work. I did something like this on my rear bumper a long time ago, but not as nice as what's shown above.





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Last edited by TheBandit; 05-31-2016 at 11:36 AM.
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Old 05-31-2016, 11:52 AM
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Quote:
Originally Posted by fabcam View Post
I am going to have the guys put that technique into our new Dragon software for the square and rectangle machine.

.
Cool! A Dragon would be on my wish list if I was doing fab work for a living.

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Originally Posted by TheBandit View Post
Grabbed a few photos to share here:
Thanks! That way they'll be preserved if something happens to the linked thread.
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Old 05-31-2016, 01:27 PM
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I went on the Roadster Shop's website to look at the Camaro spec chassis from that thread - pretty interesting. Laser scanning has enabled full CAD designed chassis' for these old cars. They even have an IRS setup for my Nova - just a mere $16k for the full chassis. If I had lots and lots and lots of money to burn...
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Old 05-31-2016, 01:47 PM
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We demoed the FARO setup they show here at work a few weeks ago. The laser is really slick, just like spray painting. I imagine the files they're generating for an entire car are HUGE...the point clouds are really dense. It's overkill for what we do, where we just need the coordinates of features instead of the full surface.

I think the $16K version of the chassis is the one that's welded up from 10 gauge sheet. Expensive, but the cost is justified by the sheer amount of labor involved.
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Old 05-31-2016, 04:57 PM
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Some day I might pony up for an aftermarket frame and suspension setup. There is much better stuff available now to facilitate better geometry, accept late model components, provide room for wider wheels, etc. Both front and rear could use some modernizing.

Thanks for posting the detail.
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Old 06-01-2016, 06:50 AM
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RS does some beautiful stuff!
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Old 06-01-2016, 08:39 AM
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That's a great way to deal with square tubing. I wonder how it works for a 90 degree corner. I have some stuff I'd like to use that for in the future. I wonder if I can line it all up on my cnc plasma table to cut out a few of them.
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Old 06-01-2016, 01:00 PM
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I bet it would work fine for a 90 degree corner as long as you relieve enough material to allow for the outside radius. The beauty of having that integrated into BT Dragon will be having all the geometry worked out for the cut automagically.
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Old 06-01-2016, 01:09 PM
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Quote:
Originally Posted by stock93 View Post
That's a great way to deal with square tubing. I wonder how it works for a 90 degree corner. I have some stuff I'd like to use that for in the future. I wonder if I can line it all up on my cnc plasma table to cut out a few of them.
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I bet it would work fine for a 90 degree corner as long as you relieve enough material to allow for the outside radius. The beauty of having that integrated into BT Dragon will be having all the geometry worked out for the cut automagically.
We have it worked out for a 90 degree corner. You need to hold it in position to weld it because the spring back will give you a little trouble with the edges meeting up. We are implementing 2 different styles. 1) is with the typical 45 degree chanfer and the other with it cut back so that one side is seamed perpendicular to the edge.
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The Designers of Bend-Tech Products
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Bend-Tech Dragon web site:
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Old 06-01-2016, 02:04 PM
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Cool. I'd like to see a demo of that when you guys get it dialed in. I'm much more interested in a dragon that can also do square and rectangle. Non rotational cutting is definitely a must have as well. Man I'm going to need a bigger shop at this rate...
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