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Design and make a DoESLiverpool challenge coin for sharing with other hackspaces #654

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goatchurchprime opened this issue Feb 11, 2018 · 8 comments

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@goatchurchprime
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commented Feb 11, 2018

Challenge coins are informally made and shared among the branches of the US military:

For the story, see this podcast and article:
https://99percentinvisible.org/episode/coin-check/

That radio show were so impressed, they made their own coin to give out to their best fans:
https://www.youtube.com/watch?v=LHcizbSDsi8

The uses of the coin would be to hand out to other hackspaces when going on official visits, to give to donors, or to give to visiting speakers who have made a big effort.

We could commission one from one of the coin manufacturers who probably do it at a very cheaply. They use moulds, but I don't know how the paintwork is applied (it must be automated in some way).

Even though it's art (and not a functional thing), I could cut unique editions out on the machine tool in brass (double sided if we are feeling really luxurious). For real craziness, cut the middle out and embed one of @amcewen's cheapo esp8266s on a curcuitboard. Either that, or include some NFC tech. Though we want to not go too far, as they do with the electromagnetic field badges; they got to be cheap enough.

This related to: #643 and #480

In the longer term, when this catches on, there would be a display cabinet of other hackspace challenge coins in the display cabinet #34 It would end up like those real ale pubs with all those pretty beer badge labels nailed across the ceiling,.

And it would, by stealth, get build up a directory of alternative hackspaces in every hackspace.

PS a cheaper version would be just exchanging stickers:
https://99percentinvisible.org/episode/coal-hogs-work-safe/

@drfraz

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commented Feb 11, 2018

It will be enamel not paint. Mix it up apply to the bits you want then flash it at 750-850'C
There are kits available at http://www.wgball.co.uk/product-category/starter-kits/
and before anyone asks: No I don't have the right sort of kiln! Although it would be fairly simple to build one as a project.

@goatchurchprime

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commented Feb 11, 2018

How do they get the enamel paint into the design? It's not just sploshed on over the whole thing.

@drfraz

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commented Feb 11, 2018

Third world child labour, starved to keep their hands small and dying young from all the toxic salts of cadmium, lead, etc
https://www.youtube.com/watch?v=aw-DD6R1bv4

@blindfishideas

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commented Feb 19, 2018

If people are interested in a more rough finish I have been using this process to make pewter coins from laser cut mold for the last few months.
http://www.instructables.com/id/Pewter-Cast-Coins-From-Laser-Cut-Molds/
The finish is obviously less polished but it would allow quick changes and updates. Maybe adding specific dates for special events.

@DoESsean

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commented Jan 31, 2019

Are we still interested in doing somthing like this?

Personally, I think it's a great, and fun, idea, but, being as I would likely have nothing to do with the process, I don't want to try and push something that those that would be involved aren't going to be able to have the time or inclination to pursue.

@ajlennon

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commented Jan 31, 2019

@goatchurch and I were chatting with the lovely chap who has the metal casting workshop about a visit to see how things work. Maybe he can advise on this?

@DoESsean

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commented Jul 16, 2019

@ajlennon Did the visit ever happen? Is this just a lovely dream that won't ever come to fruition?

@ajlennon

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commented Jul 16, 2019

There's lots of positivity around the metal casting workshop. I think it will happen....

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