Early Attempt/Leave it to the Pros

A project log for Sprite Wand

How small an area can I cram 6 APA102-2020s?

morganmorgan 05/27/2019 at 21:491 Comment

At the end of last year I went on a bit of a home etching binge for my entry into the Freeform Sculpture Contest, #Venusian Star Palm. Turns out, Pyralux is quite a bit easier to home etch than FR4, not sure why though.

When everything was done, and I slapped together a write up no one read, I was still setup for etching and had the house to myself for a couple more days. So thought I'd give this cube a go.

Not toooo shabby. But the edge connections where just too small and the tolerances where just too tight and I ended up with a significant number of defects. If I'd had more faith in doing proper double sided (over just two larges 'traces') it might have worked out better but looks cool.

With potential for a proper cube through @oshpark I will also utilize something I learned while making #Venusian Star Palm, wire in a tube in a tube. The plan is the mount the 'sprite' on the end of a brass tube, that has another insulated brass tube inside it, which has two magnet wires running inside it.

Here you can see the magnet wire carrying DATA IN, inserted into a brass rod carrying VCC insulated with kapton interted into another rod carrying GND.

With that same inner tubing, getting two wires didn't seem like it would work, so I'll either go with 3 or all for in the larger if it comes to it.

The rest of the plan is to build a nice wood handle for it, chuck what ever micro and hopefully an accelorometer in there and call it a project!


Daren Schwenke wrote 05/27/2019 at 22:04 point

The first photo gives me a definite Hellraiser vibe.

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