Miguel Arroz on Nostr: To folks into electronics, PCB manufacturing and/or #retrocomputing: this is a very ...
To folks into electronics, PCB manufacturing and/or #retrocomputing: this is a very broken membrane of an LC keyboard (M0487). Many traces are bad. I was wondering if this could be manufactured like any regular PCB. JLC apparently does flexible boards although I’m not sure if it’s the same materials. Some questions:
- How to do the black contacts (graphite?)?
- How to do the bridges?
- How to define which areas are covered and exposed (like the plug)?
- Can it be done at all?
Published at
2026-09-25 13:05:03 UTCEvent JSON
{
"id": "60d412b89bc6d5731d54c1474c6d332d4920d99237e73869beb93661c8293fe5",
"pubkey": "7e4f96bdba9583b9e70272c296396ef8ca489bf61ffd47b83fdc3be6606ac662",
"created_at": 1790341503,
"kind": 1,
"tags": [
[
"t",
"retrocomputing"
],
[
"imeta",
"url https://files.mastodon.social/media_attachments/files/117/331/820/323/905/298/original/bcba9ca93f91cde6.jpeg",
"m image/jpeg",
"dim 3325x2494",
"blurhash UGHLYUOn#q%g{c,rOAMxEk9b%2xFIpNbWB%L"
],
[
"proxy",
"https://mastodon.social/users/arroz/statuses/117331820745096018",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "To folks into electronics, PCB manufacturing and/or #retrocomputing: this is a very broken membrane of an LC keyboard (M0487). Many traces are bad. I was wondering if this could be manufactured like any regular PCB. JLC apparently does flexible boards although I’m not sure if it’s the same materials. Some questions:\n- How to do the black contacts (graphite?)?\n- How to do the bridges?\n- How to define which areas are covered and exposed (like the plug)?\n- Can it be done at all?\n\nhttps://files.mastodon.social/media_attachments/files/117/331/820/323/905/298/original/bcba9ca93f91cde6.jpeg",
"sig": "bf1d9be0ed381e43c09d034077fd0f55f37e0caace40658d3dd979d38cdfe5cb4fceafbdb74191040f4a05d18dbeb93b0e422137433c66986049ed6df83faba0"
}
