Tinkerer (noun)

A person who enjoys making repairs, adjustments or improvements to things in a casual or informal manner, often as a hobby or pastime.

Origin:

Derived from the verb "tinker" which means to make repairs, adjustments or improvements to something in a casual or informal manner.

Examples:

1. He was a tinkerer who always had a project going on in his garage.
2. The old car was a favorite of the tinkerer who restored it to its former glory.
3. She was a tinkerer who loved to take things apart and put them back together again.
4. The tinkerer spent hours in his workshop, experimenting with different designs and prototypes.
5. The tinkerer's inventions were often inspired by his own needs and problems he wanted to solve.