welight
Well-Known Member
Aluminum is crazy expensive at Lowes/Home Depot. Aluminum extrusions should only be $3-4.00 lb for small qty. For large qty it’s 1.5-2.00 $/lb. Google metal distributors in your area, Metal Supermarkets etc. Aluminum has a density of .1, so thickness x width x length x .1 = weight. ¼” x 2” x 12” flat bar weighs .6 lbs/ft. If its angle say 1 ½” x 1 ½” x 1/8 it’s basically the same weight as a 1/8” x 2 7/8” flat bar (1 ½” + 1 ½” = 3 less the thickness 1/8”).
If you want a 90 deg square corner on the inside of your profile (angles) it’s called architectural type, typically 6063-t5. Structural has a radius fillet (for strength) and is typically 6061-t6 but you won’t be able to fit against anything due to the inside rounded corner. I was at home depot today, they had a 1 ½” x 1 ½” x 1/8” angle x 36”. I think the price was around 45.00 cdn = 35.00 US Funds and it only weighs 1.25 lbs …… what rip off. I mentioned in a previous post to buy utility grade( any 3000 or 5000 series aluminum) if you’re buying sheet or plate up to ¼” thick, it’s half the price of 6061.
The Metal Guru.[/QUOTE]
We shipped Growmau his kits so hopefully lots of videos imminent, he is using 80/20 rails. We did not consider sending alu rails as it would have added freight cost that would have been silly relative to your ease of buying alu locally and cheap. We want to add value where possible not cost
Cheers
MArk
