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The shaking mechanism of a laboratory orbital shaker that I improvised.Maker/DIY
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Last month we needed a cheap orbital shaker with a pid controlled heater and a wide plate. So I decided to build it myself. The whole thing cost about 150$. I will upload some photos soon.
Here is some details about building process:
The middle gear has a small slit next to the hole. I inserted a 0.5mm metal foil into the slit, so the motor shaft won't slip easily.
I put the hole lid on the metal project box and use it as a template to cut two holes on the box for two metal rods, then glued the hole lid to the box.
I mounted 3 ball casters to the top of the box (then noticed that I should have used 4). So I made 2 additional supports (two half-ellipsoid parts) later.
The weakest point of this design is the shaft of the side gears. It would be nice if I could set the fill density of only these parts to 100%.
Materials and methods
Here is the additional materials to build this shaker:
- 1 electric motor ~300 rpm
- 2x 8x22x11 mm bearings
- 4 ball casters
- A metal project box
- 2x 8mm metal rod
- For heater, digital thermostat, heater plate, solid state relay and a thermocouple wire is needed.
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