-Unique mechanical lock
This is a toy puzzle. You may even consider that this is a tactical toy. All designs are locked. Rotate the drum (ring) and the container is OPEN, of course, if you know the code. Your money, flash drive or other secret personal belongings are securely hidden in this small portable vault. Key combination is unique for protection!
All parts was 100% handmade.
I have build over 20 Cryptex using this mechanical lock technology.
Step 1: Your pix on metal(simplest method)
What you'll need
a. For pix template
1. Print on Film for laser(incjet) printing
2. Cut black-printed parts on film(like in 1,2,5,6,7 photos)
3. Stick prepared template to metal (methal must be clean and defatted)
4. Paint the other parts of metal using oil varnish
b. Acid preparation
1. One packet of food citric acid (50g in any local shop)
2. Two botles (100ml) of peroxide( in any pharmacy store)
3. One spoon of salt
Mix it and simplest acid will be ready
Photos 4-5-6-7 and result 9-10-11 (a chemical reaction 1hour)
Not that on photos 10 and 11 i used nitric acid for numbers. (a chemical reaction 1 minute)
In all my next creations i use Photoresist method like in PCB. Using photoresist method you'll get excellent quality in transferred picture