Coating instructions

[Pferdebockwurst]

I bought a can of Plastik 70 Super but I'm really not sure where to apply the coating. @rbaron unfortunately, your Twitter thread about the coating process isn't accessible anymore. Can someone please tell me which parts of the sensor must be excluded from the coating?

[rbaron]

Sadly I've ditched twitter for the most part. But this is the video I had there:

https://github.com/rbaron/b-parasite/assets/1573409/410142f7-b048-4441-b6cc-818e977ba255

And this is the result I aim for:

For the record I know little about conformal coating. I am sure there are less megalomaniacal ways to achieve better results. But I've had good experience with this, and more importantly, fun building the spinning jig (#63).

I started #79 to gather more ideas and knowledge on the topic.

[Pferdebockwurst]

Sadly I've ditched twitter for the most part. But this is the video I had there: coating.mov

And this is the result I aim for:

For the record I know little about conformal coating. I am sure there are less megalomaniacal ways to achieve better results. But I've had good experience with this, and more importantly, fun building the spinning jig (#63).

I started #79 to gather more ideas and knowledge on the topic.

Thanks. Great idea! So you didn't mask anything on the PCB? Looks like you even sprayed on the chips and battery holder?!

[rbaron]

@Pferdebockwurst lately I've been masking by holding a piece of cardboard so I only spray the bottom half. I've also gone wild in the past and sprayed everything, then removed the coating from the batt clip with a cotton swab and rubbing alcohol. While everything works, I haven't measured the impact on the temp sensor (it has an opening that likely shouldn't be filled...). But these days I just coat the bottom half.