The modelling was all done using tinkercad and was split into 3 sections
- The leg mechanism
- The speeder circling mechism
- The head turn mechanism
All 3 mechanism uses different types of gears. I did a lot of research on gears to see what works for each mechanism.
All 4 legs are powered by a single N20 motor that is connected very intricately with gears to rotate both clockwise and counter clockwise to help with a smooth rotation.
2- Speeder mechanism
the speeder would circle the whole base and atat so i made 4 post from the base to hold onto a 90 teeth ring gear.
3- The atat head turns
At first i wanted to use a single motor to power the whole automata but that means i had to make a gear mechanism that would transfer rotation power from the base to the ATAT body and head. Althought i got it to work, the torque that the motor was turning was too powerful that the 3d printed parts was starting to break apart. In the end I added another N20 motor in the atat body to make the head turns
After all the mechanism was completed, I concerntrated on making the ATAT details. Learning from past experience from the x-wing, I separated all the laser cannon so if 1 broke, you dont need to print the whole head again.
Modelling the ATAT was the easy part. after that i separated all the parts for easy 3d printing. If you have a very tuned 3d printer, you wont need to support a lot of the parts.
As always, all 3d stl models can be found here https://www.thingiverse.com/thing:4967877 or https://www.myminifactory.com/object/3d-print-atat-motorize-automata-185990 or https://cults3d.com/en/3d-model/art/atat-motorized-automata