[PSUBS-MAILIST] Drebbel launch video.

Wed Apr 20 17:20:53 EDT 2016

Thanks Emile,that is topical that the controller died. I read this in the Robotech manualthat Cliff linked to yesterday. And we discussed this some time ago.Wire Lengths Wire lengths to the motors and from the battery should be kept as short as possible. Longer wires will create increased inductance which will produce undesirable effects such as electrical noise or increased current and voltage ripple. The power supply/battery wires must be as short as possible. They should also be sized appropriately for the amout of current being drawn. Increased inductance in the power source wires will increase the ripple current/voltage at the RoboClaw which can damage the filter caps on the board or even causing voltage spikes over the rated voltage of the Roboclaw, leading to board failure.   With the long wire runs we have on submersibles maybe we need extra capacitorsbefore the controller. I will have to look at this more closely.Cheers Alan

      From: emile via Personal_Submersibles <personal_submersibles at psubs.org>
 To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
 Sent: Thursday, April 21, 2016 8:35 AM
 Subject: Re: [PSUBS-MAILIST] Drebbel launch video.

#yiv2355107781 #yiv2355107781 -- _filtered #yiv2355107781 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv2355107781 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv2355107781 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv2355107781 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;}#yiv2355107781 #yiv2355107781 p.yiv2355107781MsoNormal, #yiv2355107781 li.yiv2355107781MsoNormal, #yiv2355107781 div.yiv2355107781MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv2355107781 a:link, #yiv2355107781 span.yiv2355107781MsoHyperlink {color:blue;text-decoration:underline;}#yiv2355107781 a:visited, #yiv2355107781 span.yiv2355107781MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv2355107781 p.yiv2355107781MsoAcetate, #yiv2355107781 li.yiv2355107781MsoAcetate, #yiv2355107781 div.yiv2355107781MsoAcetate {margin:0cm;margin-bottom:.0001pt;font-size:8.0pt;}#yiv2355107781 p.yiv2355107781msonormal, #yiv2355107781 li.yiv2355107781msonormal, #yiv2355107781 div.yiv2355107781msonormal {margin-right:0cm;margin-left:0cm;font-size:12.0pt;}#yiv2355107781 span.yiv2355107781msohyperlink {}#yiv2355107781 span.yiv2355107781msohyperlinkfollowed {}#yiv2355107781 span.yiv2355107781e-mailstijl17 {}#yiv2355107781 p.yiv2355107781msonormal1, #yiv2355107781 li.yiv2355107781msonormal1, #yiv2355107781 div.yiv2355107781msonormal1 {margin:0cm;margin-bottom:.0001pt;font-size:11.0pt;}#yiv2355107781 span.yiv2355107781msohyperlink1 {color:blue;text-decoration:underline;}#yiv2355107781 span.yiv2355107781msohyperlinkfollowed1 {color:purple;text-decoration:underline;}#yiv2355107781 span.yiv2355107781e-mailstijl171 {color:windowtext;}#yiv2355107781 span.yiv2355107781E-mailStijl25 {color:#1F497D;}#yiv2355107781 span.yiv2355107781BallontekstChar {}#yiv2355107781 .yiv2355107781MsoChpDefault {font-size:10.0pt;} _filtered #yiv2355107781 {margin:70.85pt 70.85pt 70.85pt 70.85pt;}#yiv2355107781 div.yiv2355107781WordSection1 {}#yiv2355107781 Hi Alan,  The speed controller of the Protuar died . It is replaced by a approx 3,5 Kw hubless thruster like the side motors.Runs now a nice 3 knots on the surface.  Emile  Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] Namens Alan James via Personal_Submersibles
Verzonden: dinsdag 19 april 2016 21:48
Aan: Personal Submersibles General Discussion
Onderwerp: Re: [PSUBS-MAILIST] Drebbel launch video.  Thanks Emile, very good. I had heard something about you replacing your rear thruster.Was that the protruar 2hp you replaced. I remember you sayingthe gearbox was a bit noisy. What did you replace it with.Alan  From: emile via Personal_Submersibles <personal_submersibles at psubs.org>
To: personal_submersibles at psubs.org 
Sent: Wednesday, April 20, 2016 7:27 AM
Subject: [PSUBS-MAILIST] Drebbel launch video.  Hi, A friend made a video which shows clearly the launch and retrieval of my submersible.Nearly a “instruction video” how to launch with trailer extension boom.. It was a nust as the slipway is Sandy and uneven. https://www.youtube.com/watch?v=C618GkveCvU regards, Emile
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