Caliper, catapult, fidget toy, phone stand, keychain in less than 50 minutes

It features:

1- Outer measure (main rule: mm/inch)

2- Inner measure (main rule: mm/inch)

3- Depth measure (depth rule: mm / main rule: inch DON´T use main rule for depth measures) 

4- Phone Stand

5- Keychain hole 

6- Spring ideal for a fidget toy

7- Catapult Toy

Print in the provided orientation 

0.2mm layer height

PETG or PLA

10% infill

Assembly:

1- Spring to Rule

2- Depth rule to Main Rule (half way)

3- Spring to Depth rule ( Pull the spring of the rule a litttle and insert in the depth rule hole)

4- Cover

You may want to play a little with the spring before, to reduce friction.