<div dir="ltr">Alan<div>Nice and compact.Im sure control is possible.</div><div>Glen</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jul 26, 2015 at 7:09 PM, Alan James via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div><span>Hi Glen,</span></div><div dir="ltr">have run this one in the pool with prop & no housing.</div><div dir="ltr"><a href="http://www.hobbyking.com/hobbyking/store/__18184__Turnigy_Aerodrive_SK3_6374_149kv_Brushless_Outrunner_Motor.html" target="_blank">http://www.hobbyking.com/hobbyking/store/__18184__Turnigy_Aerodrive_SK3_6374_149kv_Brushless_Outrunner_Motor.html</a><br></div><div dir="ltr">It's tiny at 3hp. The number 6374 means 63mm diameter x 74mm long.</div><div dir="ltr">I am intending to oil compensate it. There is nothing to the motor, but</div><div dir="ltr">the electronic speed controllers are complex & don't usually have reverse.</div><div dir="ltr">there are issues caused by long wire runs from battery to esc that need addressing.</div><div dir="ltr">Alan</div><br> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div dir="ltr"> <hr size="1"> <font size="2" face="Arial"><span class=""> <b><span style="font-weight:bold">From:</span></b> glen brown via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br> <b><span style="font-weight:bold">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> <br> </span><b><span style="font-weight:bold">Sent:</span></b> Monday, July 27, 2015 3:33 AM<div><div class="h5"><br> <b><span style="font-weight:bold">Subject:</span></b> Re: [PSUBS-MAILIST] pump motor<br> </div></div></font> </div><div><div class="h5"> <div><br><div><div><div dir="ltr">Alan<div>What BLDC motor are you considering,are you planing on filling it with oil ect?</div><div>Regards Glen</div></div><div><br><br></div><div><div><br clear="none"><div>On Sat, Jul 25, 2015 at 12:49 PM, glen brown <span dir="ltr"><<a rel="nofollow" shape="rect" href="mailto:gbrown091@gmail.com" target="_blank">gbrown091@gmail.com</a>></span> wrote:<br clear="none"><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"> Alan<div>Thanks for the info,I am going the bore hole pump way for sure I will give feed back .</div><div><br clear="none"></div><div>I think you guys have a chance today with the game we have made 8 changes to our team,</div><div>Glen</div></div><div><div><div><br clear="none"><div>On Fri, Jul 24, 2015 at 10:49 PM, Alan James via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div><span>Glen,</span></div><div><span>I am just about to get back in to a project using an</span></div><div><span>RC BLDC motor as a thruster. Have a 3 hp one with</span></div><div dir="ltr"><span>a lot of starting torque that spins a Yamaha 4 hp prop</span></div><div dir="ltr"><span>without gearing. </span></div><div dir="ltr"><span>With regard to your pump; you will either need a suitable</span></div><div dir="ltr"><span>electronic speed controller with reverse, or </span>you could build an H bridge</div><div dir="ltr"><span>circuit on the appopriate 2 of the 3 wires from the speed controller</span></div><div dir="ltr"><span>to the BLDC motor. There are normally 3 wires from the controller to<br clear="none"></span></div><div dir="ltr"><span>the motor, the central one is for position feedback & the other two can be </span></div><div dir="ltr"><span>switched around happily for reversing the polarity.</span></div><div dir="ltr"><span>You will need some sort of delay so you are not wacking it in to reverse</span></div><div dir="ltr"><span>while it's still rotating.</span></div><div dir="ltr"><span>Ken is an expert on this.</span></div><div dir="ltr"><span>Hank had some great low priced DC pumps that he posted links to a while back.</span></div><div dir="ltr"><span>Alan</span></div><br clear="none"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"> <div dir="ltr"> <hr size="1"> <font size="2" face="Arial"> <b><span style="font-weight:bold">From:</span></b> glen brown via Personal_Submersibles <<a rel="nofollow" shape="rect" href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>><br clear="none"> <b><span style="font-weight:bold">To:</span></b> Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>> <br clear="none"> <b><span style="font-weight:bold">Sent:</span></b> Saturday, July 25, 2015 2:55 AM<span><br clear="none"> <b><span style="font-weight:bold">Subject:</span></b> Re: [PSUBS-MAILIST] pump motor<br clear="none"> </span></font> </div><div><div> <div><br clear="none"><div><div><div dir="ltr">Hank<div>I think using a set in either direction could work, the motor is not that long . Another option could be be rotating 180 deg.</div><div>With all the issues that the trolling motors have I think its something I'm going to have to look into plus our dollar exchange rate is at 13 to 1 at present.I wonder what size and pitch prop one would use?</div><div>Glen</div><div><br clear="none"></div></div><div><br clear="none"><br clear="none"></div><div><div><br clear="none"><div>On Fri, Jul 24, 2015 at 4:33 PM, hank pronk via Personal_Submersibles <span dir="ltr"><<a rel="nofollow" shape="rect" href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br clear="none"><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Glen,<br clear="none">
I looked at it real hard, the motors are well compensated with a rubber bladder at the bottom. They are also sleek and made from SS. The problem is, they are not reversible, as far as I could figure. Maybe someone knows a way to reverse them. If you can find a way to reverse them, please let me know. I would use them in a flash!<br clear="none">
Hank<br clear="none">
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