Parking Break for General Aviation Flight Simulator

Parking break mechanism for your homecockpit.

The radial center design with the long holes will allow to mount the assembly with variable angle, as its intended puropose is to be mounted to 80x40 aluminium profile, while achieving the desired position of the handle. Though you can mount the assembly, or even just the bearings, to whatever you can make it adhere to.

Besides the four parts to print you will need:

• 1 rod of sufficient length of ca. 40 cm, diameter 10mm
  • Even if you glue the handle to the rod, you will need to drill at least one hole for the shaft insert pin. 
  • For positioning the optional through hole for attaching the handle: put printed handle on your push-rod, mark position of the hole.
  • For positioning the shaft insert: assemble the parts and mark the position of the pin in the handbrakes pulled position on the end of the rod visible inside Bearing B. Mind if you drill a hole for attaching the handle, that the direction of the pin hole into the rod should be perpendicular to the handle regarding its desired position in either pushed/pulled state.
  • If you want to use a screw and also conveniently happen to have thread cutting equipment: good. 
  • Otherwise: if the rod is e.g. made from aluminium and the screw made of steel, you could try cutting a thread by carefully choosing the pre drilling diameter - you might want to have two or three screws for that maneuver.
  • You could also drill the hole just a little wider and glue the pin with a suitable adhesive.
     
• Spring of sufficient length and strength, inner diameter peferably a bit larger than 10mm, suggested length for given baseplate: 15 to 20cm)
• Contact Sensor/contact switch, suggested to mount with 2 M3x40 screws, washers and nuts to the long holes near Bearing A
• 6 screws M4x20, nuts, preferably with 12 washers - for mounting Bearing A and B
• 1 (preferably headless aka. grub) screw, about M4/M5x15...30 / or piece of round steel with comparable dimesnions acting as pin
• adjusting ring, with inner diameter 10 mm, acting as second endstop and catch for the spring
   
• If much friction is occcuring between push-rod and bearing, consider smoothing the surface of the bearing and defintely use dry lubricant such as Graphene from a soft pencil or Teflonspray

Besides the switch, which I ordered online, I found everything else needed in the hardware store.
If you have questions: let me know.