<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Thanks Sean,</div><div id="AppleMailSignature">sounds like I got my X & Y mixed up.</div><div id="AppleMailSignature">I don't think I need a yaw motion from the rotation of the joystick as</div><div id="AppleMailSignature">I get this with a combination of X & Y. The tractor steering on my ambient</div><div id="AppleMailSignature">works well, & this just has an X & Y axis on the horizontal thrusters. I could</div><div id="AppleMailSignature">however feed the control through the PLC & put in some logic so that when </div><div id="AppleMailSignature">I go nearly full left on the joy stick, the right hand thruster goes in reverse to </div><div id="AppleMailSignature">turn the sub on it's axis. </div><div id="AppleMailSignature">On my ambient sub I have a separate joy stick for the horizontal thrusters ( PS2 controller ). This is reasonably intuitive but takes two hands, & I want a hand </div><div id="AppleMailSignature">free for a camera, HMI or manipulator. </div><div id="AppleMailSignature">If I can't find anything off the shelf it may come down to putting a small finger</div><div id="AppleMailSignature">operated joystick horizontally off the main joystick shaft.</div><div id="AppleMailSignature">Cheers Alan</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature"><br><br>Sent from my iPad</div><div><br>On 27/02/2018, at 11:15 AM, Sean T. Stevenson via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div>I would stick with an intuitive control scheme, and find a joystick with three axes. Forward / back Y axis corresponds to ahead / astern propulsion (surge), left / right X axis corresponds to straight lateral motion (sway), and rotating the stick clockwise or counterclockwise around the Z axis corresponds to turning (yaw) motion. Three axis sticks are pretty common industrial controls, although I don't know about meeting your budget. For depth control (heave), you could use a stick with an additional thumb wheel or accessory axis, or make use of a simple switch, but ramp the output in proportion to how long you hold the digital state changed. You could also have a button which toggles e.g. your stick's Y axis between surge and heave control modes. Wanting single stick control limits your options a bit, unless you're also using a PLC / PAC, in which case you could use joystick buttons just to jog your depth setpoint, and rely on other code to actually implement an associated control algorithm.<br><br>Sean<br><br><br><br>Sent from ProtonMail mobile<br><br><br><br>-------- Original Message --------<br>On Feb 26, 2018, 14:48, Alan via Personal_Submersibles < <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<blockquote class="protonmail_quote"><br>Should mention that the buttons or whatever for the vertical
<br>thrusters will have to be analogue to give me speed control,
<br>& not on & off.
<br>Cheers Alan
<br>
<br>Sent from my iPad
<br>
<br>> On 27/02/2018, at 10:36 AM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
<br>>
<br>> Am looking for a semi industrial or industrial joystick for controlling
<br>> 4 thrusters; two vertical, two horizontal.
<br>> I want to operate it with one hand. The X axis will be the horizontal thrusters
<br>> throttle forward & reverse, the Y axis is the horizontal thrusters proportional
<br>> speed for turning ( pretty standard ). The vertical thruster control is what I
<br>> am having trouble with; I want it to be as intuitive as possible & have seen
<br>> buttons on joystick shafts that could be used for up & down. In the attached
<br>> picture the buttons are on the top of the shaft in the left hand example.
<br>> I am also wanting the unit pretty small, so small intuitive, one handed operation.
<br>> It doesn't matter if there is a few extra buttons as I could use these for lights
<br>> or display control etc.
<br>> If anyone knows of anything, or has a better solution, I would be interested
<br>> thanks. Oh yeah, & not really expensive!
<br>> Alan
<br>> <image1.jpg>
<br>>
<br>>
<br>>
<br>> Sent from my iPad
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