Putting an arc in aluminum tubing
I've seen tonneau covers made with steel electrical conduit, both 1/2
and 3/4 inch diameters were used for the bows. Depending on how you want it to look, you may have to bend the bows differently. For instance, some of them have a sharp, pronounced peak in the center which you could probably do with a conduit bender, which you can find at most larger hardware stores. For a gentler bend in softer material, you might be able to bend it over your knee, but this is hard to do consistently. I've also used a form block, made from plywood, bolted down to a firm surface, either a table or sheet of 3/4 plywood. Put an end stop on one side that is half of the overall part length away from the center of the form block. Pull on the part at the other end of the part at a distance half of the part length away from the center of the form block and take care to note how far you have pulled it, so that you can repeat it if it produces the piece you want. Hope the diagram helps. - - pull back this end - v - -------------------------\ - o \ o o \ o form o\ o block o\ \ \ end stop \hold this end |
Putting an arc in aluminum tubing
A few pieces of aluminum cut over-length and forced into pockets in the
sidewalls will do it. Or simpler; wood |
Putting an arc in aluminum tubing
Thanks for all the replies I'll let you know how it turns out. Jason |
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