<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>Cool. I am going to make one first for Trustworthy and spend some time with it before I build the deep sub. But it will take a few years to design. </div><div>I am planning two arms on Trustworthy. One 5 function manipulator arm, one 3 function with tooling and a dredge pump.</div><div>Thanks,</div><div>Scott Waters</div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from my U.S. Cellular® Smartphone</div></div><div></div><br><br>-------- Original message --------<br>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> <br>Date:01/12/2015 6:29 PM (GMT-06:00) <br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br>Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question <br><br><br>Scott,<br>If you can submerge the pump motor in the oil then you can have a square hyd reservoir with a rubber lid and your done, like the old school battery box.<br>Hank--------------------------------------------<br>On Mon, 1/12/15, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] Manipulator Hydrolic question<br> To: "Personal Submersibles General Discussion" <personal_submersibles@psubs.org><br> Received: Monday, January 12, 2015, 7:26 PM<br> <br> Scott, that is a GREAT<br> idea, particularly in your deep sub.<br> Hank<br> --------------------------------------------<br> On Mon, 1/12/15, via Personal_Submersibles<br> <personal_submersibles@psubs.org><br> wrote:<br> <br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator Hydrolic question<br> To: "Personal Submersibles General<br> Discussion" <personal_submersibles@psubs.org><br> Received: Monday, January 12, 2015, 7:13 PM<br> <br> Hank,<br> <br> My thought was to have no<br> hydraulic penetrators<br> into the sub and to<br> only have a subconn to run<br> <br> the manipulator. The pumps would be submerged in the<br> hydraulic reservoir outside of the sub and<br> would be pressure<br> compensated. Good or<br> bad idea?<br> <br> Thanks,<br> Scott Waters <br> <br> <br> -------- Original<br> Message --------<br> Subject: Re:<br> [PSUBS-MAILIST] Manipulator Hydrolic question<br> From: hank pronk via Personal_Submersibles<br> <personal_submersibles@psubs.org><br> Date: Mon, January 12, 2015 4:46 pm<br> To: Personal Submersibles General<br> Discussion<br> <personal_submersibles@psubs.org><br> <br> Scott,<br> The<br> pump runs the whole time the arm is in use. When you<br> want to grab the gold filled chest, turn on<br> the pump and use<br> the arm then turn it off<br> when your done. I would keep it<br> simple,<br> besides the arm functions are continuous. It<br> probably takes less power to keep the pump<br> running rather<br> than start and stop<br> constantly. You could use multiple small<br> <br> pumps that activate with each function, might be simpler<br> in<br> the end. No valve bank and less<br> complicated.<br> Hank<br> <br> --------------------------------------------<br> On Mon, 1/12/15, via Personal_Submersibles<br> <personal_submersibles@psubs.org><br> wrote:<br> <br> <br> Subject: [PSUBS-MAILIST] Manipulator Hydrolic question<br> To: "psubs" <personal_submersibles@psubs.org><br> Received: Monday, January 12, 2015, 5:54 PM<br> <br> Do<br> most<br> submarine manipulator arms have a pump for each<br> cylinder controlled electronically from the<br> inside of the<br> sub or do they have one pump<br> that is continuously running<br> and hoses go<br> in the sub and controlled with valves? Or<br> <br> perhaps another way? <br> <br> <br> My excavators in my company have one pump that is<br> engine driven and it runs continuously an the<br> cylinders are<br> actuated by valves. Seems<br> impractical to me to have a<br> battery driven<br> pump that runs continuously. <br> <br> Thanks,<br> Scott Waters<br> -----Inline Attachment Follows-----<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> -----Inline Attachment Follows-----<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br><br>_______________________________________________<br>Personal_Submersibles mailing list<br>Personal_Submersibles@psubs.org<br>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br><br></body></html>