Building an accurate tempering oven

[DIYSwede]

Thanks for sharing, Nick - excellent salvaging project, and clever use of the in situ convection fan,
thus making the temp probe positioning less crucial, and the temp more evenly distributed within.

A few tips (and your code may vary from mine):
Use a camera/ cell phone to photograph the gear before and throughout the dismantling,
thus making sure the heating elements will get connected correctly (in parallel, not in series) also after the mod.
A crude sketch is also worthwhile, and yet another for the new hook-up.

I do this regularly at work for most electrical repairs, even though I'm been at it for +30 years...
Black, blue and green-yellow electric tape is good to have around to mark wires to the appropriate connector,
as many appliances today only use white internal hookup wire.
A beeping ohmmeter is also crucial for checking which wire goes where..

When possible, use fibreglass wound heat resistant wire* for hookup,
preferably with some protective sheath between the oven & controller.

Like:*https://www.ebay.co.uk/itm/HEAT-RESI...wAAOxyg7xSaFKF


All the best
Johan