Astra V2.1: Barn Door Tracker with Straight Drive Screw

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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 nut28BYJ-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/

Author:
peterqin

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