David Lang
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  • United States
  • David Lang
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Latest Activity

David Lang posted a blog post

Tether Reel Belt

Patrick shows off his tether reel belt clip he designed. Making it easier for the ROV to be operated by a single person. His designs can be found here: http://openrov.com/forum/topics/a-reel-way-to-manage-your-tetherSee More
43 minutes ago
Nils Jakobi commented on David Lang's blog post Pull Request Previews
"I saw all of them and have to shout out a big thank you to Brian for putting these together! Keep on doing these, I really enjoy them and they give me a little more insight in what you guys are doing software-wise."
Jul 22
David Lang posted a blog post

Pull Request Previews

In case you hadn't seen them, Brian A has been putting together awesome Pull Request Previews for all the new changes coming down the pipeline. You can see the full list of videos on our YouTube channel: https://www.youtube.com/user/OpenROVSee More
Jul 22
David Lang posted a blog post

Arctic Adventure!

Here's a local Canadian news report on OpenROVer Erika Bergman. She's taking part in an Arctic adventure that involves snorkling to Greenland from Canada. She's got two OpenROVs and is showing them to kids and interested folks throughout her trip. You can read more about her journey her:https://openexplorer.com/expedition/arcticexpedition/See More
Jul 15
David Lang left a comment for Ryan Brown
"Hey Ryan,Please send me an email: david@openrov.com -David"
Jul 15
Ryan Brown left a comment for David Lang
"SORRY ABOUT SPELLING TYPING IN THE DARK HERE WITH LITTLE LED LIGHT ON "
Jul 15
Ryan Brown left a comment for David Lang
"HI DAVID RYAN BROWN HERE AGAIN IV JUST UPDATED ALL MY SERVERS IN OUR SERVER ROOM TO GET MY IT AND CAT STUDENTS MORE INTRESTED IN CISCO SYSTEMS, AS YOU KNOW WE ARE A SMALL EDUCATION CENTRE IN SOUTH AFRICA AND TIMES ARE HARD ALL OVER THE PLANET, THERE…"
Jul 15
David Lang posted a blog post

DIT (Do-It-Together) Exploration

Over the past few years, the most fun and educational aspect of developing OpenROV has been going on the various expeditions: Hall City Cave, Sea of Cortez, Searching for the SS Tahoe, etc. The expeditions (however makeshift they were/are) have been rallying points for feature development, bug-fixing and, most importantly, meeting new friends and collaborators. On each trip, we've widened the circle of friends that have taken part in this adventure. In fact, it's exactly that aspect - a number…See More
Jul 8
Michael Sinclair commented on David Lang's blog post Insulation Issue with the Brushless Motors
"Any update on how this has been working out? I'm operating in a salty environment and an very keen to hear on your results."
Jul 3
David Lang posted a blog post
Jul 2
David Lang posted a blog post

Improved Verticle Prop Performance

Walt just posted a great write-up on all the prop testing we've been doing at the lab. The big finding was that we can get much better performance on the Z axis by switching to the two-blade Graupner prop. Worth reading all of Walt's post: …See More
Jun 28
David Lang posted a blog post

Field Charger

Carsten is designing a small field charger for his ROV batteries. He's planning on using it during his trip to Lake Malawi. He posted his design on OpenExplorer. What do you think? Check it out: https://openexplorer.com/expedition/lakemalawi/#post-3358045See More
Jun 27
Dave Hinton commented on David Lang's blog post First Dive in Bermuda
"I like it. Bermuda is one of my favourite places."
Jun 26
Carsten Klarborg Larsen commented on David Lang's blog post Dev Call Recap 6.9.2014
"Any news on what  type of batteries you have in mind? "
Jun 25
David Lang posted blog posts
Jun 24
David Lang posted a blog post

Tahoe Prop Testing

Here's a video recap from the team that went to Lake Tahoe last weekend. The full expedition can be seen here: https://openexplorer.com/expedition/southlaketahoe/See More
Jun 22

Profile Information

Full Name
David Lang
About Me
Writer, Maker, Amateur
My interests in ROV Submarines
Adventure!
Hometown
Minnepolis, MN

David Lang's Blog

Tether Reel Belt



Patrick shows off his tether reel belt clip he designed. Making it easier for the ROV to be operated by a single person. 



His designs can be found here: …

Continue

Posted on July 28, 2014 at 12:43pm

Pull Request Previews

In case you hadn't seen them, Brian A has been putting together awesome Pull Request Previews for all the new changes coming down the pipeline. You can see the full list of videos on our YouTube channel: 

https://www.youtube.com/user/OpenROV

Posted on July 22, 2014 at 9:13am — 1 Comment

Arctic Adventure!

Here's a local Canadian news report on OpenROVer Erika Bergman. She's taking part in an Arctic adventure that involves snorkling to Greenland from Canada. She's got two OpenROVs and is showing them to kids and interested folks throughout her trip. You can read more about her journey her:…

Continue

Posted on July 15, 2014 at 12:37pm

DIT (Do-It-Together) Exploration

Over the past few years, the most fun and educational aspect of developing OpenROV has been going on the various expeditions: Hall City Cave, Sea of Cortez, Searching for the SS Tahoe, etc. The expeditions (however makeshift they were/are) have been rallying points for feature development, bug-fixing and, most importantly, meeting new friends and collaborators. On each trip, we've widened the circle of friends that have taken part in this adventure. In fact, it's exactly that aspect - a…

Continue

Posted on July 8, 2014 at 11:24am

Comment Wall (12 comments)

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At 11:38am on July 15, 2014, Ryan Brown said…

SORRY ABOUT SPELLING TYPING IN THE DARK HERE WITH LITTLE LED LIGHT ON

At 11:36am on July 15, 2014, Ryan Brown said…

HI DAVID RYAN BROWN HERE AGAIN IV JUST UPDATED ALL MY SERVERS IN OUR SERVER ROOM TO GET MY IT AND CAT STUDENTS MORE INTRESTED IN CISCO SYSTEMS, AS YOU KNOW WE ARE A SMALL EDUCATION CENTRE IN SOUTH AFRICA AND TIMES ARE HARD ALL OVER THE PLANET, THERE FOR MY REQUEST FOR A KIT HERE IN SOUTH AFRICA WOULD BE A FIRST AS MY STUDENTS WILL START ROBOTICS ENG NEXT YEAR AND THIS WOULD MOTIVATE THEM ALL AND SEEING IIS B.. IF YOU KNOW WHAT I M GETTING AT.  PLEASE WE WOULD POST ALL OUR PROJECTS ONLINE ON THE OPENROV SITE YOUTUBE UNDER CHAMPIONS FACEBOOK PAGE PLEASE, YOU CAN SEE OUR CENTRE FOR YOUR SELF, I HAVE AREADY CONTACTED DJI DRONES ALSO IN THIS REGARD AND WE MAY HAVE ONE OF THERE BUDJET UNITS HERE SOON AS IT IS A START TO OUR ROBOTICS CENTRE.  THANKYOU RYAN BROWN (CAT iT ART EDUCATION HOD)   SORRY IT HAS TAKEN SO LONG TO REPLY NEW BUILDING ETC .

At 9:09am on May 20, 2014, Joshua Morales said…

Ok I typed something up really quick. It is waiting or approval. I wanted to get something up asap because I have to head to school. I will add more detail to it later when I have time

At 8:09am on May 20, 2014, Joshua Morales said…

I do have a video and lots of pictures of the AUV. I can post up the video now. Where would the best place to put it be?

At 6:29pm on March 30, 2014, Troy said…
Thanks for the internal parts once my design is finalized I'll set aside material and machine time for you in case you want some bullet proof end caps.
At 8:03pm on January 21, 2014, Paul Fontenrose said…

Hey David,

I'm not sure the correct person to contact, but  I ordered an kit from the store back in October (order number #1261,  ROV serial number #494), but I am just starting to build it now (through step 18). 

I have discovered the kit is missing the following parts:

for Step 21:  

            -Aft battery end cap inner disk (quantity 2)

for Step 23:  

            -large (28 mm) forward end cap disk (quantity 4)

            -small (24 mm) forward end cap disk (quantity 2)

Is it possible to get these parts?  i would happily pay for another complete set of acrylic (spares wouldn't hurt!)...

Thanks and great work!

Paul

At 1:14pm on November 4, 2013, Matthew Arrott said…

Yes it was great to have the opportunity and time on the plane back yesterday. Spent a little time this morning investigating the Maker Movement - very encouraging, much more to explore.

Some highlights from my investigation of Persig's MOQ that you may find interesting:

R. Persig, Subjects, Objects, Data and Values : http://moq.org/forum/Pirsig/emmpaper.html

Which suggests some connections his "Metaphysics of Quality" with Niels Bohr's Philosophy of Complementarity

Niels Bohr, Philosophy of Complementarity : http://en.wikipedia.org/wiki/Complementarity_(physics)

Which aligns the mathematical formulation of quantum mechanics (statistical reality) with the classical formulation of objective reality

From there I ran into these two papers both from 1949 - even the opening paragraphs are good to have in one's head.

Niels Bohr, Discussions with Einstein on Epistemological Problems in Atomic Physics : http://www.marxists.org/reference/subject/philosophy/works/dk/bohr.htm

Albert Einstein's reply : http://www.marxists.org/reference/subject/philosophy/works/ge/einstein.htm

At 8:29am on March 31, 2012, Travis Good said…

Wandering ruins in southern Mexico between undergrad and graduate school: 1984. Only recently rediscovered the pictures from that trip so I figured, "What the heck!?" :-)

At 6:51am on November 9, 2011, Kay said…

Glad to be here! It's encouraging to us to find groups like yours. And we really appreciate your spirit of sharing ideas and plansand failures and success... and... well, just about everything that goes into the making of a DIY project. :)

At 9:44pm on September 17, 2011, gabriella levine said…

Hey David - 

 

I heard you were at the Open Hardware Summit - And I think that we were standing next to a project at the end of the day - I cant remember which one - but (during the demos) - Am I correct? perhaps it was someone else, but I thought that later when looking at your site yesterday -

 

Anyway - I would LOVE to hear, see, experience... some openROV ... I will be at Maker Faire tomrorow  - so , I think you are also? I'll come say hi...

 

Great,

gabriella

 

Really look forward to seeing 

 
 
 

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