Lowe's is super expensive for aluminum. At the time I got most of my aluminum at McMaster-Carr. Much cheaper than Lowe's (about half their price). But since then I have found that Aircraft Spruce is even cheaper for aluminum.
Current prices
4' x 4' sheet of .040" thick 6061 aluminum
Aircraft Spruce $38 (part#03-30540)
McMaster $137 (part# 89015K82)
Sheets available in sizes up to 4' x 12' at Aircraft Spruce
1"x1/4" 6061 aluminum bar
Aircraft Spruce $1.15 per ft, (part# 03-46300)
McMaster $16 per 6' piece (part# 8975K24).
I got my Lexan at at Piedmont Plastics, a local plastics supply house, but don't know their current prices.
I used 1/8" thick Lexan and about 40 feet of aluminum bar.
Last edited by basjoos; 04-18-2012 at 03:11 PM..
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