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Simple Induction Heater Helps with Homebrew Shrink-Fitting

Posted on October 26, 2020 by Dan Maloney

Machinists have a lot of neat shop tricks, but one especially interesting one is shrink-fitting tools. Shrink-fitting achieves an interference fit between tool and holder by creating a temperature difference between the two before assembly. Once everything returns to temperature, the two parts may as well be welded together.

Set Your Nuts (and Bolts) Free with this Induction Heater

Posted on May 22, 2019 by Adam Fabio

[Amon] built an induction heater to break stuck bolts loose. If you work on cars, machines, or anything big and metal, sooner or later you’re going to run into stuck nuts and bolts. Getting them unstuck usually involves penetrating oil, heat from a torch, and cheater bars. Heat usually works …read more

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