Look4Sat satellite tracking gimbal stepper motor speed reducer version

September 17, 2024 Update: V1.2
1. This update primarily redesigns the PCB, using a 5V power module to resolve the insufficient 5V power issue of the 1117 chip.
2. Updated printed parts, added CNC parts, and allows selection of one of two types of connectors.
 
 
 
 
MP2236 Power Module
 
 
(July 18, 2024):
Look4Sat satellite tracking gimbal, using Arduino Nono and ESP8266, along with two photoelectric limit switches, controls two stepper motors or a rotating platform, allowing the antenna to track and point at the target satellite in real time.
Achieves high-precision pointing at a relatively low cost.
 
Main components
: Pitch uses a Cree 9060 worm gear turntable with a 1:60 reduction ratio
; Direction uses an unnamed MD85 turntable with a 1:18 reduction ratio
 
 
; Limit switches are photoelectric limit sensors. NPN type signals are required, with a 5-24V power supply.
 
These are the components I used; they may not be the same as mine. For the mechanical parts, those with the capability can 3D print all mechanical and reduction parts; only 42 stepper motors need to be purchased.
The reduction ratio can be calculated and modified independently. The limit sensor doesn't necessarily have to be a photoelectric sensor; any NPN type with a 5-24V signal power supply will suffice. One M8*16 flathead screw, four M4*20 countersunk screws, and four M4 anti-slip nuts are needed for connecting the two turntables and the printed parts.
 
Six M4*12 flathead screws are used to connect the base. One 1/4 to 3/8 camera adapter screw is used to install the quick-release plate. Six M4*8 flathead screws are used to install the antenna mounting plate. Six M3*40 screws are used to install the antenna . Several M3*8 screws are used to install accessories. Other limit sensors are not required if automatic zeroing is not needed. The original design was for base station installation, requiring only one adjustment to true north. Note! A limit sensor must be installed for pitch. The program printouts are attached. If you have an optimized version, please leave a comment. Finally, the program can be directly copied to the Arduino IDE and the corresponding libraries installed for compilation. Compiling with Arduino NANO and ESP8266 is very simple.