Lightweight orbital shaker powered by a stepper motor for agitating cultured cells. Suitable to be placed in an incubator with variable-speed control panel on the outside.
View the animation in OpenSCAD if you want to see how it works.
Planar shapes are laser cut from acrylic - other parts are 3D printed. Stepper motor driven by EasyDriver board and Ardunio.
- ABS/PLA for 3D printing the following
- 4x spindles
- 4x joiners
- 1x motor cog
- 1x spindle cog
- 12x rotational bearings
- Acrylic to laser cut (or manually produce)
- 2x lower plates
- 1x shaking plate
- Pillars to go between the two lower plates (3D printing is also possible here)
- Optional extras
- 'Dashboard' sticky pads to stick down culture flasks
- Rubber feet to reduce vibrations
- 1x stepper motor with reasonable torque
- EasyDriver board
- Arduino (with keypad shield recommended)
- Suitable DC power supply
What's not yet included in the SCAD
- How to attach motor to base-plate. This depends on exact motor dimensions. I just glued on acrylic offcuts to contain my motor as a temporary strategy. In due course I hope to produce a design where it's bolted on.
- The pillars. You can use almost anything for these (e.g. http://www.thingiverse.com/thing:27736/#instructions )
Video demo at https://www.youtube.com/watch?v=Tr4ByE6NLZ4
Some more info and at http://splasho.com/orbit.