C64 Mini Keyboard mod – More Electronics

Thru Hole Keyboard PCB - First spin
Looking a LOT better!

After a few days, I’ve now got something workable – The switches being Thru-hole allow ease of routing on both the top and the bottom layers. I’ve named each switch and diode with the keyboard’s actual Symbol to make placing them on the PCB much easier. you’re seeing the results of a few days work (maybe about 4 hours all up) of starting from scratch on the design.

Next step will be aligning the PCB layout and spacing with the plastic buttons

I’ve done what I can based upon rough assumptions above – the top row of switches for example – its row of buttons ‘just’ fits within my calipers – so it’s about 151mm wide

Whipping out the calipers again…….

Thru Hole Keyboard PCB - First spin - Fusion Model - Untidy

Way too many dimensions on there, I’m sure there’s easier ways of doing this, But, it’s in, I’m still learning AND it all seems to match the actual keyboard 🙂

Here’s the sketch without dimensions

Thru Hole Keyboard PCB - First spin - Fusion Model - TIDY

And, Just because, a quick render. This isn’t intended to be a recreation of the keyboard, it does show the maximum outer space I have available to work with. The drawing is the key for me here – that should align with the PCB in EASYEDA

Keyboard Render - First VersionProblem is….

Fusion360 doesn’t seem to like exporting in any ‘friendly’ formats to allow a scaled vector image to be imported into EASYEDA

Looks like i’ll have to start using some printer paper 🙂

Author: Bleugh

Early Fourties, Wife, two kids in primary school. Both of us work full time...5 years now we’ve been Back in Blighty after a decade away...It's a new country for everyone! Still finding time to tinker!

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