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Aluminum T Skirts [message #201448] Tue, 12 March 2013 20:04 Go to previous message
kerry pinkerton is currently offline  kerry pinkerton   United States
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma:
Senior Member
Larry from Menomie asked if I could make him some T skirts that were 1/2" smaller to clear the larger tires he runs on his coach. Today I made them and here is how. For you email types, the album is at:

http://www.gmcmhphotos.com/photos/g6320-aluminum-t-skirts.html

But the text is in this thread so it might be easier to click on each photo as it comes up in the post.

I started out by tracing one of my original skirts on a piece of .063(1/16")3003 H14 aluminum (the most common alloy and thickness for car and bike work).

http://www.gmcmhphotos.com/photos/data/6320/z_001.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_001.jpg

I then used a thin piece of metal to loft in the new curve. Larry wanted a 1/2" more clearance flowing into the original curve.

http://www.gmcmhphotos.com/photos/data/6320/z_002.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_002.jpg

Once I had the final lines, I used 3/4" tape to make the cut line. The material under the tape will be shaped to form the lip of the skirt.

http://www.gmcmhphotos.com/photos/data/6320/z_003.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_003.jpg

Cut it out.

http://www.gmcmhphotos.com/photos/data/6320/z_004.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_004.jpg

If you are going to make two of something, it's best to mark them for cutting out both at the same time to ensure you start with two identical blanks.

http://www.gmcmhphotos.com/photos/data/6320/z_008.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_008.jpg

The first cut is a rough cut and the panel is trimmed to the exact line with hand shears or in this case, a Harbor Freight Beverly Sheer knock off....a pretty good tool once it is adjusted properly. Like most stuff from HF, this is a 'kit' that requires some tweaking to work well.

http://www.gmcmhphotos.com/photos/data/6320/z_006.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_006.jpg

This is a deburring tool that takes off any sharp finger slicers.

http://www.gmcmhphotos.com/photos/data/6320/z_007.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_007.jpg

The top of the skirt is bent slightly just to give the panel some strength and keep it in control as it's being shaped.

http://www.gmcmhphotos.com/photos/data/6320/z_009.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_009.jpg

The bottom of the skirt also has a flange and the side flanges are cut so they can be bent over the bottom flange later.

http://www.gmcmhphotos.com/photos/data/6320/z_010.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_010.jpg

Now for the shaping. This is a tipping tool. Really simple, just a slit in some square stock.

http://www.gmcmhphotos.com/photos/data/6320/z_011.jpg
http://www.gmcmhphotos.com/photos/data/6320/z_011.jpg

More in the next post.


Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
 
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