<html><head></head><body><div class="yahoo-style-wrap" style="font-family:times new roman, new york, times, serif;font-size:16px;"><div dir="ltr" data-setdir="false">For a couple of weeks I've been toying with the idea of a "fly-by-wire" approach to rudder control. I really don't like the idea of manually operated foot control found in K-subs and while thinking about how I might implement a hand control I started delving into a fly-by-wire solution after seeing a youtube video on a totally unrelated topic demonstrating small motor controllers.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I've converted a 5 volt hand-held power screwdriver into a 1-ATM housing partially filled with oil for lubrication purposes. The torque on these small things are quite impressive and I believe may be strong enough to handle a rudder. Even if it isn't, I can still use the motor for something else.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I combined a small motor controller that can handle 10 amps, with a TEENSY microprocessor, and a joystick which allows me to control motor spin direction, and speed. It works amazing and total cost was about $60. If you've got a purpose for a small electric motor with speed/direction control, you might find this project interesting. I've written a paper and also included software, both available at PSUBS.ORG > PSUBS Community > Community Projects > Speed and Direction Control for Small Brushed Motors.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Direct link:</div><div dir="ltr" data-setdir="false"><a href="http://www.psubs.org/community/projects/moto-1.pdf" rel="nofollow" target="_blank">http://www.psubs.org/community/projects/moto-1.pdf</a><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Jon</div></div></body></html>