老外制作 微波炉变压器改装电焊机大图全过程废品利用.docVIP

introBuild a Microwave Transformer Homemade Stick/Arc Welder I had no idea making a DIY welder would be so easy to do. And, its pretty much FREE ! Additionally, the stick welder you get is definitely better than anycheap commercial welder you can buy.Why is this homemade thing better than something you can buy ? Because when you factor in shipping and labor and the little bit of retail markup - the companies that make typical cheap buzz boxes will skimp on copper as much as possible. Whereas you can use enough copper in this to make something really juicy, and still spend less, to nothing, compared to a store-bought arc welder. So heres what you need to build a welder:- Two beat up old microwaves- Some 10 gauge wire- Wire nutsPeople throw out microwaves all the time, if you keep your eyes on the curbs.Or, you can get microwaves at the local thrift store for $10 each.Try the warehouse that processes donations - they have to pay to get rid of tons of broken ones.Stuff you need for welding:- Welding helmet ($16 and up)- Welding rods ($6) - Vice grip or purpose-built electrode holder ($6 for either)- C clamp for grounding clamp- Gloves - Thick nonflammable (leather) clothing that will cover your armsDisclaimer: High Voltage ELECTRICITY and lots of CURRENT! Heat, electrocution, and DANGER! You could die and you could go blind.That said, try this at home! See this for a lot of welding safety tips Here are the really good how-tos that this project is informed by:build a 70 amp welder the tiny tim welder by tim williams home made welding machine (via afrigadget)Dan Hartmans how-to is good for reference, too.And heres the quickest way to make a DC welder with a bunch of 12 volt batteries. image not found sparks! The good kind, from the weld, not the bad kind from the welder. TimAnderson me welding stasterisk call me Flashdance. stasterisk istep 1Dissect the Microwaves Invite your non-hardware oriented pals over to help help dissect your don