Continuous Rotation Pointer
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Stepper-driven pointer with continuous rotation: the steppers are fixed so no cable tangles.
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Stepper-driven pointer with continuous rotation: the steppers are fixed so no cable tangles.
Print Settings
Printer:
Mini Kossel
Rafts:
No
No
Resolution:
0.2/0.3
any
Filament: Random PLA PLA White
Notes:
Should print without additional supports (support in one place is built in)
Bearings: Uses 6x 624zz bearings (6mm shaft diameter)Belts: Uses 2x 200mm length, 6mm wide GT2 belts
Machine Screws: Assorted M3 machine screws & grub screws
Shafts: 3x 6mm shafts: ~120mm, ~75mm & 300mm (depending on how long you'd like the pointer). I used 6mm carbon fibre rods that I had laying around.
Pulleys: 2x 20t GT2 pulleys, can be metal or printed from https://www.thingiverse.com/thing:11256
Bevel Gears: 2x 45 deg 1:1 bevel gears, fixing holes drilled M2.5 and tapped M3 to accept 6mm M3 grub screws. I bought these from RS Components (stock no 521-6058, https://uk.rs-online.com/web/p/mitre-bevel-gears/5216058/?sra=pstk) - check how much you can buy bevel gears for before you decide to make this, they are not cheap
How I Designed This
Built in OpenSCAD
*.scad file is included
60 tooth pulleys are adapted from pulleys generated from https://www.thingiverse.com/thing:11256
Category: Physics & Astronomy