Simple inserts press

This is quick weekend project - simple tool for installing inserts by soldering iron.

Sizes doesn't matters. Do what you want :]

Parts needed:

- old LM8UU bearings (4pcs.)
- old 8mm linear shafts or pipes (2pcs.)
- 20mm profile (1pcs.)
- a few M4 screws/nuts and 3mm wood screws
- 10mm springs (2pcs)
- wooden board (plywood or whatever you have)

Notice:
Part iron_bracket,stl is suitable for my chinese soldering iron (30-32mm dia.). If it doesn't fit to yours feel free and design