MeteorStack

Motorized stacking rail project for micro and macrophotograhy, controlled by a Raspberry Pi.

Hardware

Components

Raspberry Pi
DM556 motor controller or an equivalent
Nema 17 stepper motor or an equivalent
24 Volt power supply for the motor controller
Power jack female connector
4x 1k Ohm resistors can depend of the transistor you use
4x BC547B NPN transistors most NPN transitor can fit the bill
1x 100 Ohm resistor can depend of the optocoupler you use
1x KB 814 DIP-4 optocoupler
2.5mm jack cable to trigger the camera
2.5mm jack female connector

Schematic

Dont forget to configure your motor controller with the right current for your stepper motor

Software

Usage

In /software

Configuration in config.txt

[STEPPER_MOTOR]
motor_enable_pin = 17 # GPIO pins
motor_direction_pin = 27
motor_step_pin = 22
motor_delay = 3E-004
# Number of pulses needed to do one revolution, can be changed with the motor controller
pulses_per_rev = 400

[CAMERA]
# GPIO pin
camera_trigger_pin = 23
camera_trigger_delay = 0.2 # the time needed for the camera to detect that it had been triggered. Keep it as low as possible
camera_vibration_delay = 1 # delay for the all rail setup to stabilize before taking a picture
camera_taking_picture_delay = 0.2 # delay to let the camera take the picture before moving again during stacking

[STACKING]
number_of_shot = 10 # Number of pictures taken during a stack
number_of_step = 2 # Number of steps done for each picture taken

Execute meteor_stack

Developement

In /code

Prerequies

Blessed for the user interface: https://github.com/jquast/blessed
Cython for the compilation

Compilation

Just execute compile.sh

Vincentdecursay / MeteorRail