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Conductive ABS Potentiometer

Linear_Potentiometer_Insides_display_large.jpg Conductive ABS Potentiometer
LinearPot_ConductiveABS_Element.stl Conductive ABS Potentiometer
LinearPot_Wiper.stl Conductive ABS Potentiometer
LinearPot_Thumb_NeedsImprovement.stl Conductive ABS Potentiometer
LinearPot_Case.stl Conductive ABS Potentiometer
LinearPot_EndCaps.stl Conductive ABS Potentiometer
LinearPot_Terminals.stl Conductive ABS Potentiometer
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Creation quality: 5.0/5 (1 vote)
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STL Folder details Close
  • LinearPot_Case.stl
  • LinearPot_ConductiveABS_Element.stl
  • LinearPot_EndCaps.stl
  • LinearPot_Terminals.stl
  • LinearPot_Thumb_NeedsImprovement.stl
  • LinearPot_Wiper.stl

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Publication date 2018-11-29 at 14:26
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Published to Thingiverse on: 2013-10-28 at 05:49
Design number 39214
Yazhgar

Yazhgar

3D printer file info

3D model description

Slider-style linear potentiometer. The resistive element was printed using conductive ABS filament. This design isn't perfect as the values still fluctuate a little bit when adjusting the slider, but usable and a LOT better than my previous designs. Also sub-optimal is that I'm only reliably able to get about 4 bits of resolution out of it.

It's tricky to print useful potentiometers out of currently available conductive ABS filament because of the very high resistance (think megaohms) and the fluctuation in resistance with pressure and bending. The orientation that you print the resistive element matters a lot. Increasing surface area seems to help as do springs to stabilize the pressure.

Here's a video: http://www.youtube.com/watch?v=TaeihVHN1Wo

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