Can You Hand-wire with Home-Made Conductive Glue (100% solder free)?
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- Опубликовано: 28 авг 2020
- In case you were wondering, is it possible to hand-wire using home-made conductive glue, without any solder?
Well here is my approach, and the final results.
Why did I do this? Well, so you don't have to, unless you really want to try it for yourself!
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So, until next time, Happy Clacking :) 
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i enjoy your channel! I found you earlier today and have been binging off and on. Keep up the good work!
Thanks Owen, appreciate the kind words :)
I wish you included a reaction video of your brother without any disclaimer 😅
That was great! What about putting corn flour in? Or would it also reduce conductivity.
Anything going into the mix that is solid non-conductive (corn flour would be in that) is going to make it worse for its conductivity properties, which would be the challenge in finding the right viscosity and adhesion properties. A more solid glue-paste medium that you could work graphite into (say a glue-stick paste) might work, you'd just have to physically mix it very well and very evenly for it to work.... Hmmm.
@@theboard what about adding like metal powder?
@@epsilonkeyboards Yeap, metal powder like say CNC swarf would work just fine, but it'd be heavier and you'd have to see how it works in the glue, as the weight would sink to the bottom of your glue mix if it was liquid (e.g. PVA) where as the graphite is lighter and better suspension medium.
Do you think conductive glue would work to wire up the switches to a pcb? Maybe with a commercial brand? I'm trying to find alternatives to soldering (can't do it due to hand disability) or expensive assembly services.. Thanks for the video!
Its possible, it really just depends on the voltage and current its capable of carrying, and if the resistance is not too great for what a keyboard needs. Commercial conductive glue I think has a lot more carbon in it also which helps with the conductivity, but it can also be quite expensive! Best to possibly buy a small amount and test on say a macropad first before investing in a larger amount to do a full sized keyboard.
@@theboard have you considered using a metal like silver, nickel, or copper powder?
@@gltovar I did not as they are 'readily available' materials that you could get in walking into a generic hardware store, but the theory definitely could work depending on certain assumptions. The problem with metal powders is oxidation and therefore non-conductive layer which would not work when in a suspended medium. Plus, for the density requirement, the powder would need to be extremely fine, which would be expensively milled products (where as graphite powder is easily found in extremely fine size).
@@theboard so I am going to start with cheap copper power I found on Amazon, mixing them with ca glue, wood glue, and 2 part epoxy. Will escalate with some silver powder from ebay of it seems promising but might need a bit finer dust
@@gltovar Sounds like an awesome experiment, best of luck!
Why do you think some of the switches didn't work? do you think that was caused by the janky job of a micro controller? Or do you think it was caused by the conductive glue just not working well. Love the content btw!
Hi Jackson, thank you for the support :)
It could be a number of factors such as poor contact as the glue dries, it could have formed a PVA film with no graphite linkages. It could have oxidised the wire surfaces from the moisture in the PVA, since no flux and heat was applied to etch the surface (since flux is acidic in nature).
It is just as possible that the physical tension from twisting diode legs was insufficient when the PVA was applied, as the PVA may have creeped in between the pads and wires, and when dried, formed a film and reduced electrical conductivity.
So, just some possible cases!
I always use hot glue for insulating. I hardly ever use heat shrink any more for anything. Try that instead of PVA glue for insulating.
Doh! Commented too soon.
@@RichardBronosky I did think about using hot glue, but yeah, if you wanted to be completely heat-free (especially for kids maybe), just using a thicker PVA might do the trick :)