Astra V2.1: Barn Door Tracker with Straight Drive Screw
Astra V2.1: Barn Door Tracker with Straight Drive Screw
3D
Published 2021-02-15T11:04:08+00:00
project webpage: https://atlantisq.wordpress.com/2021/01/25/obj-2601-barn-door-tracker-astra-v2/ Scroll to the bottom for V2.1
Barn-door type astro tracker without the need for bending screws. An Arduino is used to control speed of the screw to maintain constant angular velocity. Uses a 28BYJ-48 so can be driven by a 5V USB power supply.
The bottom quick release plate is the same dimensions as the Vanguard QS-36 QR plate. Alternative Arca-Swiss mount included. See project page for details.
Hardware:
M4 nuts and bolts,
1/4in nuts and bolts,
T8x200 Leadscrew and nut
28BYJ-48 stepper and controller,
Arduino Uno (nano should work),
608ZZ bearing,
R188 bearing,
6702RS bearing,
M8 axis or rod(That will fit inside 608ZZ bearing. If you are like me and can't find one that fits, a printable option is provided.)
Ball head
Assembly instructions and Arduino code:
https://atlantisq.wordpress.com/2021/01/25/obj-2601-barn-door-tracker-astra-v2/
| Date published | 15/02/2021 |