4 Attachment(s)
More control stick pictures
The pitch cylinder is made from a section of 1" O.D. thin wall electrical tubing. I machined two plugs for the ends. The front one is made from a 1" nylon rod machined to fit the ID of the tubing with a shoulder to stop it from moving inward. The rear plug was sized lengthwise to slightly compress the springs. It is threaded to hold the rear mount turnbuckle. Set screws hold both ends securely onto the tubing.
The roll is controlled by the pulley set up that goes to the springs. This is adjustable by tightening the turnbuckles and changing springs. When the stick is moved to the side and let go it goes back to center. However, since I have not tested it in actual flight, I can’t tell just how easily it will return to center position. I am thinking of putting idler pulleys with an adjustment to further control tightness, if it is needed.
I have enclosed some more pictures. I had taken pictures of each step alone the way, including the pitch cylinder taken apart. However, they got lost in a hard drive crash. I thought I had backed everything up. However, I could only find pictures of earlier test cylinders. (Go figure) The one you see being used is the third version. So, I have included a picture from one of the earlier test rigs.
John