Here is the full list of all 24 Toy Tinker Simulator achievements.
Repair 3 toys
Repair 5 more toys
Repair 20 more toys
Repair 100 more toys
Repair 200 more toys
Repair 250 more toys
Repair 5 cars
Repair 20 more cars
Repair 50 more cars
Repair 5 ships
Repair 10 more ships
Repair 20 more ships
Repair 5 trucks
Repair 10 more trucks
Repair 20 more trucks
Repair 5 plushies
Repair 10 more plushies
Repair 20 more plushies
Repair 5 trains
Repair 10 more trains
Repair 20 more trains
Repair 5 airplanes
Repair 10 more airplanes
Repair 20 more airplanes