geekhack Projects > Making Stuff Together!

61key Keyboard

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wcass:

--- Quote from: takyon;614856 ---I've been imagining doing this but the wall I run up against is the prohibitive cost of printing a 12x4 PCB.  In prototyping quantity the board itself will run itself well beyond the cost of a Poker on BatchPCB or Express PCB. I don't have the space for a home photoetching setup, the frustration there would be getting the holes drilled anyway (let alone trying to align both layers perfectly).
--- End quote ---

if you can find other people that want this, check out http://dorkbotpdx.org/wiki/pcb_order - no set-up fee and free shipping. you get 3 copies of your design for $5 per in^2 ($80 per board) but if you can find 10 people, the "medium-run" would be $48 per board.

takyon:

--- Quote from: wcass;615894 ---if you can find other people that want this, check out http://dorkbotpdx.org/wiki/pcb_order - no set-up fee and free shipping. you get 3 copies of your design for $5 per in^2 ($80 per board) but if you can find 10 people, the "medium-run" would be $48 per board.
--- End quote ---


Whoah, thanks.  someone should make a drop in replacement for the boards in the Poker DIY thread.

Loligagger:
I'd be in for a pcb groupbuy if it had the same fit as the pokers pcb but was programmable.

takyon:

--- Quote from: Loligagger;617270 ---I'd be in for a pcb groupbuy if it had the same fit as the pokers pcb but was programmable.
--- End quote ---


I was thinking about a poker sized/spaced PCB with a 44pin TQFP footprint for the hip new Atmega chips that have USB functionality built in, set between DIP headers that fit a Teensy if people want to go that route.  The extra pins from either controller are broken out into a through-hole protoboard style area to mess around with LEDs or battery/bluetooth contraptions.

The idea is that the board could accommodate the broadest set of ambitions while leaving the trodden path clear: Usable with existing aluminum cases, Teensy mods, etc.

Loligagger:
Sounds ambitious, if you can pull it off though I'll totally be in for one.

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