PCB Etching

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Ätz-Station update 2019

AetzStation3000.jpg

We just reinstalled some pumps, tubes and wires.

Measuring Temperature

Also we installed the Gär-Lämpli to measure the temperature

The temperature is display on the LED-ring starting at 25°C on the upper left and then in a circle to 55°C on the upper right. Also color changes according to temperature. if its yellow-orange optimal temperature is reached 45-50°C.

New code can be uploaded through Audio, TinyAudioBoot, 8Bit Mixtape style. See the source here:

https://github.com/GenericLab/Unagi_Gar-Lampli

AetzLaempli.jpg

Step by Step Photolithography

see external instructions: wetpong

can someone copy all the images to this wiki?

Preparation

Mask alignment and illumination

Development

Etching

Stripping / Final cleaning with acetone

Waste disposal and Recycling

PCB waste acetone.jpg

Ätze und Entwickler ins Hagenholz bringen. Die SGMK hat ein Kundenkonto.

Downloads

File:ÄtzenHowTo.pdf