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Old 04-07-2021, 12:55 PM
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Graham08 Graham08 is offline
Master Fabricator
Join Date: May 2006
Location: Iron Station, NC
Posts: 1,800
Nice work on the tunnel! You don't need a ton of expensive tools to do nice sheet metal work in the thinner you proved here. I have a couple sets of those handheld shears that do really well when you don't have a shear. Careful marking and a steady hand will get nice, straight cuts. I have had a set of Milwaukee 18 gauge shears forever, and more recently got a set of Kett 14 gauge capacity...they really do cut 14 gauge well. I've found that clamping the material to something solid while you're cutting makes a big difference in how straight the cuts come out.

Are you planning to hit the seams around your tunnel with seam sealer at some point? Plug welding works great, but it can allow moisture to get between the panels and rust down the road.
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