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Old 02-25-2011, 06:01 PM
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timboellner timboellner is offline
Motorized Bicycle Elite Member
Join Date: Apr 2009
Location: Towson Maryland
Posts: 434
Default Re: New tank inspired by Silverbear and Tinsmith

Had the day off so I laid out the tank bottom and tunnel for the underside.

Pretty challenging to figure out how much pitch I would need on the undertube to make the tank sit almost level but slightly sloped
to the back end to drain toward the gas cock.

The difficulty lies in figuring out where to put the 1/2 inch lap joints so that when it gets soldered up I will have access and a way to get to all the joints
effectively to produce a good leak-proof seam that I can clamp while I cook it together.

It not only has to look good but more importantly has to be strong and leak-proof.
I did recheck what I have already done and found a tiny pinpoint hole in a corner (circled in sharpee). I'll hit it again and recheck it.
Here's the pics of the bottom and tunnel layout.

Tomorrow it gets formed on the bending brake and possibly soldered up.
Thanks for viewing.
Attached Images
File Type: jpg 2004_0101stuffnew0005 (1008 x 756).jpg (147.3 KB, 105 views)
File Type: jpg 2004_0101stuffnew0006 (1008 x 756).jpg (174.8 KB, 118 views)
File Type: jpg 2004_0101stuffnew0009 (600 x 450).jpg (51.1 KB, 133 views)
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