I needed some triggers for testing my inmoov hand.
this was my first test design.
- 5k potmeter B5k
- Pen spring
- M3 Hex Socket Set Screws
- Glue CA(Cyanoacrylat superglue)
Step 1: 3D Print
Print STL files.
I printed them at this settings:
No brim, supports or raft
Step 2: Potentiometer
cut off the knurled part.
There should be 2mm left
Step 3: Dryfit
Dryfit your parts.
Set your potmeter at center position (the knob)
Make sure you fit the potmeter on the right side of the trigger
Step 4: Glue and Screw
Glue the trigger from underside, make sure you dont get any glue in the moving parts of the potmeter.
glue the spring at the designated flat place.
You may stretch or cut the spring to fit it at best.
Screw in your set screw to fasten the potmeter.
Step 5: Soldering
solder the pins, and stretch the cable through the hole.
Step 6: Arduino Setup
A0 ; analog 0 port
calibrate by tweeking the highlithed numbers
val = map(val, 0, 1023, -785, 785);
First number is start position, and second is triggered position