This page shows the progress of Richard Liu's final project for the class of "How to make almost anything", 2017.
In my final project, I'm planning to make a three-axis gimbal for my iPhone. Currently, I'd like to make sure that my gimbal will be able to have following functions:
- Stabilizing my phone when walking or running
- Conversion between stick-mounted and bag-mounted
- Heating my phone to make it warm in the winter
- Light-weight and quick assembling and disassembling
- Auto tracking a people/object
- To be continued ...
Designing of the Frame
This is the final version for the frame of my gimbal. Basicaly, it will be cut by laser cutter, and assembled in a press-fit manner. Detailed design process is summarized in this link.
The whole frame will be cut out from 3.5 mm Grade 5 Titanium (the hardest titanium alloy).
This is a model I cut with laser cutter, with two motors installed:
This is my parts cut out of titanium by laser cutter, waiting to be sent to me:
Designing of the Electronics
Here is the basic control schemes for the gimbal and heater:
- One ATMega328p MCU for overall PID controlling of motors and heater, controlling of LCD display, and control of the main menu.
- Three ATTiny44A and three DRV8313 BLDC motor drivers to control motors precisely, and communicate with the 328p.