Walking Robot

Goal was to build a small robot which can walk. It is made out of 3d-printed and lasercutted parts. In Addition, there is a motor, a switch and a battery.
The challenge is that it should work without clue. Therefore, a high accuricy of lasercutted parts is nessesary.

Check for the Laser specification

Before starting the lasercutting, it is important to check the laser specification.
The kerv of the lasercutter should be measured. Therefore, a rectagle of the plexiglass, which has a length of 100 mm, was cut out and was devided in 10 pieces.

The hole has a width of 100.0 mm and the ten pieces has a combined width of 97.3 mm.

So there is an offset of 2.7 mm for 11 cuts, which results in a kerv of 0.245 mm per cut.

Parts

Some 3d-printed PLA parts, some lasercutted 3mm plexiglass parts, battery, a small motor with a gearbox and a few screws were used.

Building

Before srewing everything together, the motor and the battery were soldered together. After that, all parts were assembled.

Result

In the end, the robot was able to walk. It is tricky to tighten the screws enough, so that the parts hold together but the moving parts can still move.