[PSUBS-MAILIST] Brushless motor

Wed Jan 14 21:00:19 EST 2015

Brian, 
I sure hope your going to take pictures for us.
Hank--------------------------------------------
On Wed, 1/14/15, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] Brushless motor
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Wednesday, January 14, 2015, 8:57 PM

 Making a trip tomorrow to
 check out the new oil cooled
 motor! Brian

 --- personal_submersibles at psubs.org wrote:

 From: Alan James via
 Personal_Submersibles
 <personal_submersibles at psubs.org>
 To:
 Personal Submersibles General Discussion
 <personal_submersibles at psubs.org>
 Subject: Re: [PSUBS-MAILIST] Brushless motor
 Date: Mon, 12 Jan 2015 08:57:48 +0000 (UTC)

 Hi Bob,yes I remember you from
 Washington.I am the guy
 from New Zealand with the funny accent.A lot of people on site are using Minn Kotta
 trolling motors.A number
 of people have recently purchased Minn Kota
 101swith the Minn Kota
 controller. If you went that route you
 wouldhave a lot of help,
 & the Minn kotas are a tried & true
 solution.I am not sure
 what the consensus is on compensating them.I am intending to oil compensate my home
 made thrusters,mainly to
 help disipate the heat; & will pressurize the oil with
 air,slightly above
 ambient.IVC in Vancouver sell
 thruster assemblies for $2,195- each.http://www.ivccorp.com/content.html?page=2
 I can't tell you what
 the assembly comprises.Alan

 From: via
 Personal_Submersibles
 <personal_submersibles at psubs.org>

 To:
 "submersibles, personal"
 <personal_submersibles at psubs.org> 

 Sent: Monday,
 January 12, 2015 7:07 PM
  Subject: Re:
 [PSUBS-MAILIST] Brushless motor

 Alan,

 Thank you for your reply.  My name is Bob Travis.  I
 don't know how to make my name show up on my emails like
 the rest of the group and I apologize for not signing my
 question.  I have watched the threads for years now and I
 met some of you at the Psubs convention in Washington this
 last year (I was the one that no one was expecting).  But
 for the most part, I have just watched,
 read and attempted to learn.  

 A little background...  I started dreaming about a sub
 in 2005.  My wife (aka.. the read head) gave me permission
 to proceed, but of course, has occasionally put up some road
 blocks which has delayed things a bit.  I started the
 actual construction a little over 5 years ago.  I have
 studied Trustworthy, Persistence and Guernsey Submarine as
 well as snoopy and some of the other boats on the
 site and have gained great a great bit of knowledge and
 direction.  I have also learned an amazing amount from
 reading the threads from the group.  

 About me...  I am the quiet one that sits in the
 back of the class not wanting any attention. I have a huge
 problem with putting myself out there.  I live in Eastern
 Washington and I am building a K-350...... and, because of
 the above, have not posted my project pictures on the
 site.  I keep thinking that I am going to do this but I
 just haven't taken the time (or built up the nerve).  I
 am a pencil pusher.  I don't have a mechanical bone in
 my body!  So some of the most basic things are very
 difficult for me to get my arms around.  Want to negotiate
 a $500,000 deal, I'm your guy!  Want to hook up an
 electrical panel... Ahhhhhhh????????    I have made
 almost all of my structural parts, have had them welded and
 am now working on my electrical and have not a clue what I
 am doing at this point.  I am struggling with some of the
 most basic items (like finding the correct ampere meter) and
 for some reason have a mental block on how to proceed.  I
 really appreciate your response and will follow the
 link!

 I am at the point where the red head has told me to
 "get that stupid thing done" and I am not going to
 question it!  With her recent permission, I have a renewed
 energy level and will be doing what ever possible so that I
 am testing in August!  So with that said, I am going to be
 asking a bunch of very basic, stupid questions!  I will do
 my best to go back through the archives as to not bog the
 group down with previous topics.

 Hank... Any chance you will be making a journey to
 Spokane any time soon???

 Thanks again everybody!!!  And with your help, and a
 little luck, I will be dragging my boat to the next Psubs
 convention on the east coats so you all can teach me how to
 dive it!

 Bob

 From:
 "Alan James via Personal_Submersibles"
 <personal_submersibles at psubs.org>
 To: "Personal Submersibles General
 Discussion" <personal_submersibles at psubs.org>
 Sent: Sunday, January 11, 2015 5:01:59
 PM
 Subject: Re: [PSUBS-MAILIST]
 Brushless motor

 Hi,
 not sure who I am talking to, but the
 brushless motors put out a lot less
 electronic noise, so less interferance
 with sensitive equipment.
 They don't wear out as quickly, as
 they don't have brushes, & you get more
 power 
 for the same size unit. About 7 out of
 8 thruster manufacturers use BLDC motors.
 There are a host of cheap motors at
 "Hobby King" With 785 Watt motors for
 $25-
 http://www.hobbyking.com/hobbyking/store/__522__517__Electric_Motors-45_to_50mm.html
 You need an esc (electronic speed
 controller ) which costs about $50-.
 The escs normally work off a receiver
 sending them commands from the remote control
 transmitter.
 However there are control units you can
 buy that are wired straight to the esc.
 I  am experimenting with BLDC motors
 at the moment & are wanting to make up a
 thruster.
 Alan

 From: via
 Personal_Submersibles
 <personal_submersibles at psubs.org>
 To: "submersibles,
 personal" <personal_submersibles at psubs.org> 
 Sent: Monday, January
 12, 2015 1:23 PM
 Subject:
 [PSUBS-MAILIST] Brushless motor

 Is there a reason I should go with
 a brushless motor?  I can get a 500 watt, 36 volt scooter
 motor for about 50 bucks but brushless are harder to find
 and more expensive.  Is there an email thread on this
 already?  Has this been a topic of discussion in the
 past?
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