This is a look at my Z80 Arduino shield. It uses an Arduino Mega as a flash chip programmer and bus analyser. The Mega can also drive the system clock while monitoring the bus signals, giving full tracing of all bus operations. The PCB can accept Uno footprint shields for I/O and can run as a single board computer when the Mega is removed.
More details on my blog:
http://trochilidae.blogspot.com/2019/12/z80-arduino-using-mega-as-debugger-ever.html
Code and PCB files on Github:
https://github.com/blackjetrock/z80_shield
The PCB is on Dirty PCBs:
https://dirtypcbs.com/store/designer/details/9818/6402/z80-arduino-shield
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https://www.youtube.com/watch?v=5vLokyCIKPk
A Dr Who 'The Moment' pen box. It's half a moment, not a cube and also 4/5 scale. It holds three Beaufort Ink based pens.
Made from wood, plywood, brass, copper and aluminium with a crushed velvet lining inside.
The box can be dismantled, it is all screwed together, no glue holds anything other than the crushed velvet.
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https://www.youtube.com/watch?v=CamTkEF2DAU
Teardown of a musical mobile. The bits aren't too interesting, but there's a die shot of the controller at the end, which has large areas which presumably hold the music.
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https://www.youtube.com/watch?v=tNYcDzWA-RQ
I made some cards for my Casio PRO fx-1. They are milled CR80 card blanks.
Details on my blog:
https://trochilidae.blogspot.com/2019/04/card-success-i-like-it-when-plan-comes.html
Files on Thingiverse:
https://www.thingiverse.com/thing:3571814
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https://www.youtube.com/watch?v=1NByD6thetA
The recreation has a small http server that runs on its own hot spot. various bits of information can be accessed and adjusted, making for faster debug.
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https://www.youtube.com/watch?v=kx9QJWdtKyE
I have a go at driving this ALPS printer plotter mechanism that I got recently. It has no electronics at all.
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https://www.youtube.com/watch?v=gj6BrnpXvRs