Using this DC Boost converter (XL6009E1) you can easily convert 5V from the Arduino Nano USB to 12V. This setup should come in handy to power the SID chip. 

I have designed and put together an enclosure for the CNC 3018 router. The design files in LibreCAD (and PDF) can be dowloaded here.

One of my previous blog posts that is about recreating Atari XL/XE floppy disks describes a SIO2USB interface inside my Atari 65XE. The advantage of it is that it includes a switch that lets you toggle between the USB connection and the SIO port. This way you can easily switch between a real and virtual floppy disk that can be mounted with AspeQt software and copy real floppy disks to disks images and the other way around.

This SX04 2K LCD with controller board screen just got delivered. I will try to connect it to an HDMI output. RPi maybe? Believe it or not I have actually made an unboxing video. 

This project is from a couple years back. The 2D Xmas tree is still working. 

This is how the C64 cartridge cases turned out. They were printed on Creality LD-002R SLA printer. They look ok to me and the two halves fit perfectly well. Just some attention is needed where the supports were attached.

I have started another print. This time it's C64 cartridge cases. One is for final cart and the other is a "normal" one. Fingers crossed...