Latest revision as of 17:20, 12 November 2019

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 *25 lb/hr Metal core wire - [https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.impact-net.org/uploadFiles/94C58000001B5.filename.Monday_Breakout_9_John_Hartnett_Welding_Economics.pdf&ved=2ahUKEwiY9YOZ6vzaAhUl5YMKHX60BXsQFjADegQIARAB&usg=AOvVaw0giA1UJFUas0IrrCLWRvKG]
-=Cost of a 200' Tower, 4' Diameter, 1/4" Wall Thickness=
+=Links=
-*Metal 3D printing - with MIG welders, 250 amp each at 30V
+*[[3D Printed Windmill Tower]]
-*Welding wire - $68 for 44 lb - [https://weldingsupply.com/cgi-bin/einstein.pl?PNUM::1:UNDEF:X:70S603544]
-*Alibaba shows 50 cents per lb - [https://m.alibaba.com/showroom/035-welding-wire.html]
-*12' length of diameter. 12 SF per foot of height. 6" build per hour. 400 hours for tower, or just 17 days. Could possibly increase to 12 welders, at 8 days for the tower.
-*'''This tower is 24000 lb - 120 lb/ft'''
-*It would be useful to make wire for reduced cost. If produced from scrap, tower could cost not $24k but 1/10th.