At £4,000, this electric induction hob was one of the priciest on the market ... as you are yet to find another that would be an exact fit for the hole that would be left in your very expensive ...

The easiest way to shrink-fit machine tooling is with induction heating, and commercial rigs exist for doing the job. But [Roetz 4.0] decided to build his own shrink-fitting heater, and the ...