In order to make iteration easier on laser cutting i bought my own Glowforge.
I previously had a subsription to a fablab but not being able to estimate cutting/engraving duration (because of a private software not shared) + paying 30€/30min was a huge brake.
I have a very complex idea of secret box to build but i need to first experiment a bit with mechanisms, understand better what can be done or not, find out how to make robust things etc... In my opinion, the best way to get all that is to simply prototype stuff.
This box has nothing much of a secret box but it's a starter for building something more complex and interesting in the future.