Revision as of 17:20, 12 November 2019

It is useful to do in-situ 3D printing of 250 kW Windmill Towers with metal 3D printing using WAAM.
- Possibly with a sort of combination of the WAAM/D3D Metal Printer and a Hangprinter (Possibly using 3 or more construction cranes arranged in a polygon with each verticy being a crane)

Cost of a 200' Tower, 4' Diameter, 1/4" Wall Thickness

Metal 3D printing - with MIG welders, 250 amp each at 30V
Welding wire - $68 for 44 lb - [1]
Alibaba shows 50 cents per lb - [2]
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.

@@ Line 1: / Line 1: @@
 *It is useful to do in-situ 3D printing of [[250 kW Windmill Towers]] with metal 3D printing using [[WAAM]].
 **Possibly with a sort of combination of the [[WAAM]]/[[D3D Metal Printer]] and a [[Hangprinter]] (Possibly using 3 or more construction cranes arranged in a polygon with each verticy being a crane)
+=Cost of a 200' Tower, 4' Diameter, 1/4" Wall Thickness=
+*Metal 3D printing - with MIG welders, 250 amp each at 30V
+*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.