Redesign Rudder Gantry

[jrsteensen]

Rudder gantry as is has an unacceptable level of play in it.

Will convert to a 12VDC PA-18 linear track actuator with 150lbf and 10" throw.
PA-18-10-150
BRK-19
Power Supply

Need to add second switch to rudder pedal adjust handle, then spring to bias the handle to the center position. Lift up to move pedals away from you, push down to bring them closer to you.

[jrsteensen]

Gantry designed and in LIP model in commit 4205aaf.