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Open Focuser MK4
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3d Printable 2-inch linear rail focuser for a telescope designed to be driven by a NEMA17 stepper motor.
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Updated at source:
Model information
- Source
- Printables
- Category
- Photo & Video
- License
- Creative Commons — Attribution
Open focuser is a 2-inch 3D printed linear-rail based focuser for telescopes and other camera equipment. It has been tested successfully with a 10 LB payload and depending on the stepper motor driving it, it should be able to handle much more.
Print requirements:
all parts are designed to be printed in PET G at 0.2mm layer height and without supports, you will need 2 of the Pulleys and one of everything else.
Bill of materials:
- 4 F8-16M Thrust Ball Bearings 8mm x 16mm x 5mm
- 12 682ZZ Deep Groove Ball Bearings 2mm Inner Dia 5mm OD
- 2 100mm T5 T5x2 Tr5x2 Lead Screw and Nut Kit (1mm Pitch, 2 Start, 2mm Lead)
- 2 Linear Guide Rail, 9mm LML9B Miniature Linear Rail Guide with Bearing Steel Rail Block 100mm
- 4 M2 x 20mm screws
- 2 M3 x 10mm screws
- 12 M3 x 8mm Flat Head screws
- 10 M3 x 5mm screws
- 6 M3 heated inserts
- 1 M4 heated insert
- 2 M3 grub screw
- 1 400mm GT2 belt
- 1 GT2 16t pully
- NEMA17 Stepper
- 1 M4 Nylon bolt