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This is a placeholder page for Maker stuff.

3D Printing

Branahuie - Homebuilt i3 P3STEEL steel framed printer
Sandwick - Homebuilt Voron 2.4 COREXY printer
Stornoway - Prusa i3 Mk3S printer with MMU2 multi-material unit

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Voron 2.4 / Klipper - BTT Mini 12864 display - Reverse Text

Out of the box, the firmware for the BTT motherboard gives light text on a dark background. I much prefer the look on the right with dark text on a light background. Find out how to change from one to the other .

RC2014 8 bit Z80 computer boxed up

I've recently built a Z80 based computer ( RC2014 ) which was an interesting trip back down memory lane. It's based on a backplane and I knew I would damage something if it wasn't boxed up. So... time to get it boxed. Amazon steel instrument case The steel box in the picture came from Amazon , it was just short of £25 and to be honest I can't see that amount of money there. It looks a little flimsy, but I'm sure it's good enough to do the job. There's a 3D printed cradle that the PCB bolts into, the cradle is simply superglued into the base of the box. The thin steel front and back panels won't be used. 3D printed back panel The back panel is quite a busy affair, lots of connectors and switches on it; hopefully it will look quite neat when finished and everything will fit in the case properly. The Arduino female to female jumper leads in the background will be glued up into 3D printed shell housings to make 0.1" pitch connectors. PCBs wired to the

RC2014: 8 bit Z80 based computer

I've been having some fun revisiting the past by putting together a Z80 based 8 bit computer from a commercial kit of parts. In the picture, the oscilloscope is out and I'm trying to track down a fault with one of the boards which is preventing it from working properly. It turned out that it was bad soldering on my part. I just knew this was going to be a problem, the main board that all the cards go into must have around 1,000 solder joints on it. I think 3 had to be re-done. Some of the plug in cards had self-induced issues too, so it was a couple of evenings to build and a couple of evenings to visually inspect and test everything. It's working now, the CP/M operating system has come up Once all the gremlins were fixed, the CP/M operating system came up. This is a 1970s operating system for microcomputers and predates MS-DOS. It's said that some parts of MS-DOS (like the A> prompt) were modelled on CP/M. The bad news is there aren't many commands in CP/M so i

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