Hanayama's Huzzle Cast News inspired this puzzle but I added four micro sd slots to make it more useful.

It can be assembled without knowing the solution.

You will need 4 stainless steel bars 17-15mm long and 3mm in diameter.

I suggest this bar but you get 10: https://s.click.aliexpress.com/e/_DFk8yfx  (choose M3 16mm)

You need to print 2 "cuerpo.stl", 4 "eje.stl", and 4 "tapa.stl"

When printed, assemble the cuerpo.stl part with one of the eje.stl parts, insert 2 bars and the other eje.stl, then cover the micro sd hole with the tapa.stl. Repeat the process for the other part and then assemble the 2 parts like in the photo.

You also have a video.

If you need some micro sd cards or you want to support my work, you can buy this one that is good quality: https://s.click.aliexpress.com/e/_ATPxCq

The tapa.stl needs to be remixed to know the position of the micro sd cards, I am excited to see your designs.

Notes:

Make sure there is no support in the holes ( with the option Support touching build plate) otherwise, you won't be able to fit the bars.

Post-Printing

Usually there is no need for post-printing but if the bars don't slide well enough, try to re-drill the holes with a 3mm drill.

You can also try to file the middle part of the big piece.