Tag: switch

YIHUA 850AD Digital Display Hot Air Desoldering Station: Power inlet + power switch retrofit (WHL #85F1)

Small-ish update on the Yihua hot air station: Standby power draw is now zero!

But as is common, things weren’t quite as straight-forward as I had hoped for. Let’s start with a quick teardown of the unit, as promised. The lid is uneventful in that it has the same color on the inside as it does on the outside – and surprise, surprise, the holes go straight through Other than that, most of the chassis space is taken up by the pump, which is very reminiscent of the unit of the Toolcraft hot air station at work, even the sizing of the cable ties. […]


3D printed switch repair parts (#P31F1)

Some more details on the Bosch oven repair. These are the replacement parts that I ordered from Sculpteo, which, according to its own website, is the market leader in online ordered printed parts. Sculpteo also happened to be bought by BASF this spring, and they’re mainly printing in France but offer support in German (with offices in Germany, I think). They offer laser cutting as well but charge additional shipping cost for those, which made me skip parts of my order…

The part in question was already featured in WHL #61 (crappy automated model generation) after which I recreated it by hand. […]


Bosch Gourmet 8400 oven mode selector switch repair (Dreefs 4-DPS/260) (#P31)

A long, tedious blog post for today. This has been in the making for about 9 weeks and I’ve been looking for parts for another year or two. Pictures have been taken on multiple occasions in multiple locations, so it’s a hotchpotch that somewhat reflects the process. This is the use case for the 3D model generation of the WHL #61 post.

Our Bosch Gourmet 8400 microwave and baking oven has been there for as long as I can remember. It’s a huge and darn heavy thing for a microwave oven (27l volume!), and rather small for a baking oven with grill (broiler) functionality. […]


Black 0-9 Digits Single Unit Pushwheel Thumbwheel Switch (WHL #11)

Folks, this is a big one. I will split into two articles to make the item review available now and show the finished project later (once I got a box around it). Maybe even three articles to post DMM comparison data. Today, I will show the unit and the first measuring results.

Back in January ( :neutral: ) I bought a 10-pack of these dials for 5.33€ including shipping at AliExpress. I saw these in the EEVblog forums and decided to have a go. And now you know the purpose of the assorted SMD resistors in WHL #10 ;)

First things first: Shipping took ages, and quality is very Wan Hung Lo’ish. […]