# Potting electronics **URL:** \ **Category:** DIY STUFF\ **Created:** [July 5, 2020, 9:45pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384 "2020-07-05T21:45:35Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 7, 2020, 12:39pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/21 "2020-07-07T12:39:40Z")
Black miliput (epoxy putty) is great for vactrols and you don’t have to bake them. ---
**Author:** ![Maxhirez](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/maxhirez/32/42_2.png) [@Maxhirez](https://lookmumnocomputer.discourse.group/u/Maxhirez)\ **Post date:** [July 7, 2020, 2:03pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/22 "2020-07-07T14:03:16Z")
This is either completely unrelated or the perfect video for you-I don’t know, Crafsman doesn’t seem to try to do anything functional with the PCBs: [![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/1/1b50fd8dc68c2cb5d13e458e58a245791b815e0d.jpeg "Circuit Board + Resin Jewelry [Upcycled Pendants] Computer PC Board Necklaces") ](https://www.youtube.com/watch?v=ryK6aYZqkoM) (I’m about 99% sure that’s the presenter’s real voice and accent. I’m a little troubled that it might not be though. Their website says they anonymize the character out of fear of hate-speech so it’s hard to know if there’s any appropriation going on there.) ---
**Author:** ![Caustic](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/caustic/32/15588_2.png) [@Caustic](https://lookmumnocomputer.discourse.group/u/Caustic)\ **Post date:** [July 7, 2020, 4:02pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/23 "2020-07-07T16:02:39Z")
The crafs man will abide. Good to see this content here even as a non-sequitur. ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 7, 2020, 4:40pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/24 "2020-07-07T16:40:43Z")
I’ve already posted this elsewhere, but I post it here because I find it very inspiring. This guy is describing the whole construction process so you may want to skip to step 12 or thereabouts. He’s using what he thinks is a polyester resin, but the basic idea is the same. If I should ever “git gud” at this I may then aspire to achieve the beauty of this finished article, in which case I’ll start to fix my mignons onto the front panels with their own LED lighting. > **[Crystal CMoy Free Form Headphone Amplifier](https://www.instructables.com/id/Crystal-cMoy-Free-Form-Headphone-Amplifier/)** > > Crystal CMoy Free Form Headphone Amplifier: This headphone amplifier circuit is different to conventional modern construction techniques in that it is air Wired,P2P (Point to Point) or free form wiring just like in the good old Valve days before the... ---
**Author:** ![feralbeagle](https://avatars.discourse-cdn.com/v4/letter/f/c6cbf5/32.png) [@feralbeagle](https://lookmumnocomputer.discourse.group/u/feralbeagle)\ **Post date:** [July 7, 2020, 5:26pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/25 "2020-07-07T17:26:08Z")
Did you mean something like this? ![](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/1/17d78c6ccd497f866533dac824879c2073396b40.jpeg) ---
**Author:** ![feralbeagle](https://avatars.discourse-cdn.com/v4/letter/f/c6cbf5/32.png) [@feralbeagle](https://lookmumnocomputer.discourse.group/u/feralbeagle)\ **Post date:** [July 7, 2020, 5:46pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/26 "2020-07-07T17:46:32Z")
Here is the article > **[Raytheon Lectron](https://en.wikipedia.org/wiki/Raytheon_Lectron)** > > Lectron was a modular electronic experimentation kit designed to introduce youth to basic electronic circuits and theory. > The Lectron kit consisted of electronic components installed within individual "building blocks" with a clear plastic base, an opaque white top with the component's schematic symbol and permanent magnets attached to the leads of the enclosed components. Each building block was magnetically attached to a metal plate serving both as a work surface and ground, eliminating the ... ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 7, 2020, 8:30pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/27 "2020-07-07T20:30:52Z")
> [@feralbeagle](#): > > Did you mean something like this? Close enough. In problemspace the issue I’m tackling is the need to painlessly integrate digital logic and audio signals (0 to 3.3V or 0 to 5.0V) into the analogue environment during the prototyping phase. The tools I’m creating are similar in the sense that they’re encapsulated circuits with defined behaviour and can be indefinitely reused. The only difference is that I’m not asking to construct entire circuits from these _mignons_, I’m only using them to make it easier for digital logic (0-3.3V or 0-5V) to talk to analogue modular components. The circuitry is not dissimilar to Bela Salt and Bela Pepper, the Mutable Instruments modules, and more recent stuff like CTAG’s TBD. My approach is closer to Raytheon’s than to any of these guys. ---
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 7, 2020, 8:35pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/28 "2020-07-07T20:35:02Z")
Been thinking about the Grammar for you @Bitnik Mignon (means “cute” in French I think) **Possible plurals depending on your taste** Mignons, mignice, mignay, mignodes, mignieces **Possible contractions** Mig, migs, despicable mi’s, mimi ( perhaps no) **Logic and function** Mignon, migon, mignor, migor, mignand, migand Ok ok, so I’m stuck in bed and bored… sue me! ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 7, 2020, 8:43pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/29 "2020-07-07T20:43:01Z")
I’m thinking of sticking with French. So a boxed mignon would be mignon à boîte, a transparent potted mignon would be mignon en verre, one with a breadboard on top would be mignon à chapeau, and so on. This is just pillow talk for me too (voluntary in my case) but I think I like the idea. ---
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 7, 2020, 8:57pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/30 "2020-07-07T20:57:27Z")
A favorite film of mine “Diva” has a scene where a man describes the “Le zen dans l’art de la tartine” (The Zen in the art of a sandwich or toast - excuse my french) I can see a zine in your future… **le zen dans l’art du mignon** Ok ok I’ll stop now ---
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 7, 2020, 9:06pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/31 "2020-07-07T21:06:42Z")
The breadboard one - panneau de mignon? Now stopping ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 7, 2020, 9:08pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/32 "2020-07-07T21:08:42Z")
> [@Farabide](#): > > panneau de mignon? Yes. French is a pretty big language so anything that’s sufficiently precise in context is fine. Edit: I love those French glass showcases, so perhaps a mignon en verre could also be termed a mignon à vitrine. ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 9, 2020, 2:49pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/33 "2020-07-09T14:49:50Z")
Well my epoxy resin arrived. I took the opportunity to order a measuring vessel and stirring sticks too (though I also have loads of ice lolly sticks I bought as stiffeners for the greyboard I use as front panels.) I’ll post experimental stuff here but once I get going I’ll post on my progress in actual mignon à vitrine builds on the [fast prototyping](https://lookmumnocomputer.discourse.group/t/fast-prototyping/1349) thread. ---
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 9, 2020, 2:57pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/34 "2020-07-09T14:57:50Z")
Fantastic! And your off! Exciting times to keep a video journal (mignons the movie? 😁) I miss those energetic days. Right now my working motto is "I love the smell of nae plan in the mornin’. " Enjoy ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 12, 2020, 11:23pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/35 "2020-07-12T23:23:01Z")
> [@Farabide](#): > > And your off! I’ve ordered some reusable silicone moulds, and I’ll be very cautious at first. I’ll have to concentrate on reliably getting a good finished resin with tolerable electrical properties. ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 14, 2020, 8:10pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/36 "2020-07-14T20:10:11Z")
I’ve just leapt without really looking. I mixed up some epoxy without really bothering much about bubbles and the like. For the single 2.5cm square mould I have selected, a depth of 1cm requires about 6ml of mixed epoxy. I used veterinary syringe measures (the sort you use to squirt a dose of antibiotic into your pet’s mouth) and mixed up about 10ml. Here’s the mould after 30 minutes, top view and side. My guinea pig for vitrinisation is a resistor. If the process works I’ll be able to judge the thermal qualities of this embryonic mignon by feeding in current and seeing what it does to the temperature. ![IMG_20200714_205656956](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/e/ef25cf86d78a7842d428f32b89cf2e0c7503c0d7.jpeg) ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 14, 2020, 8:11pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/37 "2020-07-14T20:11:53Z")
Side view didn’t load. Here it is. ![IMG_20200714_205746265](https://global.discourse-cdn.com/free1/uploads/lookmumnocomputer/original/2X/7/7693320534e6e9f9678ec4ef41d7ac4ee324c7ec.jpeg) On the shelf below also notice a tl074cn with its legs splayed so I can solder extension wires. The plan is to put it into a mignon à chapeau with the extension wires connecting it to the hat. Fixed resistors, power supply, trimpots and the like on the hat (a miniature breadboard) can then be used to configure the mignon. From experiments with these mignons I can then design mignons à vitrine which I can mass produce for use in prototyping. ---
**Author:** ![Bitnik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/bitnik/32/274_2.png) [@Bitnik](https://lookmumnocomputer.discourse.group/u/Bitnik)\ **Post date:** [July 14, 2020, 10:00pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/38 "2020-07-14T22:00:27Z")
Things I wish I’d done. Use kitchen gloves. This is tacky, unpleasant stuff and it clings to everything. Clear my work surface better. I did all the work at the bathroom sink but I got some resin on the sponge. Soap did wash it off but my wife had a nasty surprise. Get a proper graduated measuring column to handle the quite small amounts of resin. My improvised measures may or may not be good enough, I’ll find out tomorrow. ---
**Author:** ![Caustic](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/caustic/32/15588_2.png) [@Caustic](https://lookmumnocomputer.discourse.group/u/Caustic)\ **Post date:** [July 14, 2020, 11:39pm UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/39 "2020-07-14T23:39:08Z")
GOOD LUCK!!! I hope it works out for you. ---
**Author:** ![Farabide](https://avatars.discourse-cdn.com/v4/letter/f/ecc23a/32.png) [@Farabide](https://lookmumnocomputer.discourse.group/u/Farabide)\ **Post date:** [July 15, 2020, 12:47am UTC](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384/40 "2020-07-15T00:47:35Z")
> [@Bitnik](#): > > I’ve just leapt without really looking. Amen to that! Silicon ice cube trays may take up less resin for testing. Bon voyage! [Previous page](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384.md?page=1) [Next page](https://lookmumnocomputer.discourse.group/t/potting-electronics/1384.md?page=3)