Helicopter Mi-8, Mi24 Collective

I haven't printed this last version of the part with all the switches, yet. Please share your results if you print it. 

Don't forget to like and comment.

This collective grip has:

• 3x axis
• 1x 4-way hat switch
• 4x press-buttons

Print:

• Printed in PLA
• The grip and brake pad are printed in TPU

Materials:

• 1x rotary potentiometer
• 1x joystick module 5-pin KY 23 PS2 without the circuit board (Arduino UNO starter kit for instance).
• 3x press switch (hole diameter is 16mm)
• 4x mini press buttons (6x6x4.3 momentary button)
• Arduino Pro Micro or Leo Bodnar
• 160mm metal pipe (outer diameter 6mm, inner diameter 5mm)
• 180mm threaded rod (outer diameter 5mm)
• 1x M5 nut
• 2x M3 nuts
• 6x M3x16mm bolts
• 1x M3 x10mm bolt + nut
• 16x 6mm diameter ball bearing

Tutorial video about the electronics

buttons:

potentiometer/axis:

Notes: 

• 3D-printed plastic isn't as resilient as the grip.
  If you can make the structural parts out of resin: do. If it's not an option: use PLA or better, choose at least 90% infill and print the parts with an angle (potential crack to filament layer). Adapt the joystick response curves so you don't yank your stick like a mad man. Then it'll be fine.