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Re: Homemade Bandsaw Blade Welder
Malcolm Parker-Lisberg
An old microwave will provide a transformer that is easy to rewind. The primary an secondary are separated. The core is rated to at least 600W You remove the fine wired secondary winding, cut through the wire, punch the remainder out from the laminations and add a new secondary winding using welding cable.
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Make sure you discharge the high voltage capacitor with an insulated screwdriver, as it can still hold several kilovolts. The transformers also make good spot welders. Malcolm I don't suffer from insanity I enjoy it! Mene, mene, tekel, upharsin The writing is on the wall. Ha-ktovet al ha-kir -------------------------------------------- On Tue, 5/7/19, ac9459427@... [4x6bandsaw] <4x6bandsaw@...> wrote:
Subject: [4x6bandsaw] Homemade Bandsaw Blade Welder To: 4x6bandsaw@... Date: Tuesday, May 7, 2019, 2:55 PM ? I have been attempting to repair broken blades using silver solder and a torch. Results have been somewhat uneven. Some blades held up pretty well while others broke again at the joint. I did some net research on blade welders but found they are outside my price range. I did find some used ones on eBay but still rather pricey. While searching I came upon the website below which describes a homemade blade welder. It looks to be a rather challenging project but doable. Has anyone built one of these and if so, what was the result? The author wound his own transformer for the power supply. I doubt a transformer like this is available and winding your own is probably the only alternative. I've rewound transformers in the past but nothing of this type. I find this intriguing but before I forge ahead I thought I'd solicit opinions from the group. 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