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Here is a link to my gallery showing pictures of a cage I'm working on in a 1967 Mustang for the new NASA Vintage Iron class. This was a really nice car to be doing this to! There was a little rust in the floorboards, but not bad for the age of the car. It was actually very refreshing to weld into a car that predates ultra thin sheetmetal, E-coatings, and seam sealers! http://tubularfab.com/gal2/main.php?g2_itemId=2214Second I have pics of a cage that was built per NASA / SCCA rules in 1994 Mazda RX-7. This is one tiny interior to fit a cage in! It presented a lot of challenges from being tiny, having a weird rounded shape, and having a big structure just in front of the rear hatch where the main hoop really wanted to be. I am happy with the result, though! http://tubularfab.com/gal2/main.php?g2_itemId=2148I try to get the tubes as tight against the inside of the car as I can - no gaps between the cage and the car. I also try to make sure all the tubes come together in "nodes" so all thier centerlines hit one common point. I can't get them perfect all the time, but I do try! Both of these cages were tacked together in place, then dropped down for welding the top side of the joints. There is a pic or two of the Mazda cage in dropped position for welding. Once it's welded I jack it back up into place and build "plinth" boxes under the main hoop and a-piller tubes.
Reply:Nice work..The Mustang is a '66 Shelby clone or a 2+2...Nobody in their right mind would cut up a REAL Shelby to do that to it in this day and age.....zap!Last edited by zapster; 03-13-2010 at 05:59 PM.I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Is it? I was thinking he told me '67 - shows how up I am on old Mustangs...When did you start coming back on here? I hadn't seen you in ages...
Reply:I'm hit or miss...Sure is quiet here now..The Mods have been good on this site lately.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:nice work. interesting about how you drop the cage,,,,,finish welding it, and then raise it back up into position.Is this how it is normally done? I have always been curious how some of these cages are built and how the welder actually got his torch around some of the tubes to weld them.
Reply:Well, if you want the cage tight against the roof you either make it so you can drop it to weld, or you cut the roof off, or (and probably happens more often than you'd think) you don't weld the top... I like the drop method. There are 2 ways to do it:1. With the attachment points built up on "plinth" boxes like I mentioned above. I like this method for a couple of reasons - it gives more room for the cage to slide around when you drop it, plus you can get creative with the boxes and tie them into the chassis in multiple planes for more strength.2. You can also make the cage tubes go all the way down to a flat plate on the floorpan. Cut a hole just big enough for the tube to go through the floor, then slide the base plates in so the tube doesn't go through the hole when you tack it all up. Slide the plates out, and drop the cage through the holes to weld the top. This method does not let you move the cage around as much as the plinth method, but is still very effective. |
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发表于 2021-8-31 23:56:28