The Metal Delta RepRap v1 uses a upside down Rostock-like stage to move a substrate under a MIG welder. We have demonstrated steel printing using standard welding wire. For details see: G.C. Anzalone, C. Zhang, B. Wijnen, P. G. Sanders and J.M. Pearce, ÃÂLow-Cost Open-Source 3-D Metal Printing, IEEE Access (in press). DOI: 10.1109/ACCESS.2013.2293018 open access preprint
How to build, BOM, Instructions - the build is pretty easy by RepRap standards - less than a day when you have the full BOM. Total cost, including the welder is <$1200.
We're sure jpearce would love to see what you've printed.
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