Laying down even amounts of metal with a mig is surprisingly difficult. Many years I had to build up some shafts so I rigged up a setup in an old lathe with the torch clamped in the tool post. The problem I found was that if you get a high spot you end up depositing more metal on the high spot than the lower spots. This makes sense because as the high spot approaches the nozzle you will deposit more wire and as it moves away you will deposit less wire. As I had to turn the shafts back down to size it didn't really matter but it certainly wasn't pretty.
Les On 28/03/2017 17:24, Roland Jollivet wrote: > I'm confused about not owning one either. > I keep looking at the items made, at trade shows, and in plastic it all > looks like junk. Good for fridge magnets mostly. > But they're so popular. I must be missing something... > > Metal printing on the other hand, would be very useful, but the cost of > powders is high. > > Far more useful would be a 'printer' using a mig welder (instead of laser), > to lay down metal for further machining. > eg; > https://www.youtube.com/watch?v=oaIOrQi2HLM > > Roland ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
