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Back(in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an arduino nano clone (atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a setscrew). (ShaftLength must be non-zero. NotchedShaft = 0; right_rib_x = width_mm - thickness*2; // How much to cut off to create cutouts around the knob? Knurled = 1; // [0:No, 1:Yes] ////////////////////////// ////////////////////////// RingThickness = 5*1; TimerKnobConst = 1.8*1; PI=3.14159265*1; KnobMajorRadius = KnobDiameter/2; KnobMinorRadius = KnobDiameter/2 * (1 - TaperPercentage/100); KnobRadius = KnobMinorRadius + (KnobMajorRadius-KnobMinorRadius)/2; Divot=CapType; TaperAngle=asin(KnobHeight / (sqrt(pow(KnobHeight, 2) pow(KnobMajorRadius-KnobMinorRadius,2)))) - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : Knurls-1] rotate([0, 0, 90 + sphere_indents_offset_angle .
- Normal -0.265169 -0.618852 0.739397 facet normal -2.802933e-02.
- 5.140627e-001 vertex -5.051034e+000 2.856654e+000 2.479508e+001.
- Https://www.bourns.com/docs/Product-Datasheets/pta.pdf Bourns single-gang slide.