In this post I am going to introduce you to the construction of my version of D-O, the little droid of the SW saga appears in the last episode of the trilogy and becomes the inseparable friend of BB8.
Surprisingly for everyone, especially for me, the droid was presented in public making some characteristic sounds… This was adopted by the various communities of inspired builders and basing their designs on this… Later it would be seen with surprise that the droid , on the film movie…. Speak.
I have to say that all my droid is printed except for the head and some part or rod. I was doing different tests with 3D printing materials and in the end I came to the conclusion that perhaps the best option is to manufacture it on cardboard and then varnish it.
The problem in this droid due to its construction is the weight at the top, since that weight will be multiplied by the inertia in braking (when you try to stop the droid).
If enough weight is placed on the bottom, a fairly stable system is achieved, for this I have opted for 2Kg of lead in balls of different sizes between 1 and 4mm in diameter.
The droid is operated with a Sony Navigation controller … I like this controller because it is small, handy and easy to implement.
To understand the complexity of this project a little, it is best to analyze each of the characteristics that, in short, what you must do:
- Stay in balance.
- Turn on itself or on the move.
- Turn the head on its two axes.
- Tilt the arm and the base of the head.
- Play random sounds or via remote.
So for these requirements you need the following motorization:
- Two motors for main drive.
- A servo for the arm.
- A servo for the base of the head (cam).
- A servo for head turning.
- A servo for tilting the head (neck)
In the following posts we will see the assembly steps and the links to download the parts.