I created an addressable LED word clock with my X-Carve. I only used two tools for this project my X-Carve and my soldering iron. I milled the aluminum face, HDPE backing and the copper PCB. I documented my whole build on YouTube: https://youtu.be/pyLAYcA9L70. Let me know if you have any questions.
Microelectronics is another hobby of mine. I’ve been wanting to make these word clocks for some time, but was waiting on my XC to arrive and get all setup. I’m almost there, so these will certainly be one of my projects.
Curious why you didn’t just use black HDPE for the thick backing. If so, you wouldn’t need the electrical tape to prevent bleed.
Thanks for your comment. I already bought 4 white HDPE boards it was really an oversight. In the video you will see me carving a black HDPE board I bought that after the fact for testing. It is definitely better to go with black.
Thanks Jeff your comment means a lot! I enjoy documenting my work and helping others.