tag:blogger.com,1999:blog-24000146203600911182024-03-18T21:35:00.464-04:00onshoulders- One man's research, with a whole lot of help from everyone else...gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.comBlogger131125tag:blogger.com,1999:blog-2400014620360091118.post-17435148179155478872014-01-26T15:21:00.001-05:002014-01-26T15:26:01.875-05:00PID ControllersI have a few ongoing projects where a feedback loop that considers a moving goal and adjusts to achieve that goal is essential. One of these projects is a two wheeled self balancing robot. This type of problem is perfect for a PID control loop. I have been procrastinating biting the PID bullet because I was under the impression that PID was not easy to learn or implement. Thankfully, after much searching, I have found a very straightforward and intuitive overview of PID.
<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/UR0hOmjaHp0" title="YouTube video player" width="640"></iframe><br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/XfAt6hNV8XM" title="YouTube video player" width="640"></iframe><br />
<br />
<br />
After the above overviews I dug around to find some <a href="http://en.wikipedia.org/wiki/PID_controller">PID Controller pseudocode</a>.
<pre>
previous_error = 0
integral = 0
start:
error = setpoint - measured_value
integral = integral + error*dt
derivative = (error - previous_error)/dt
output = Kp*error + Ki*integral + Kd*derivative
previous_error = error
wait(dt)
goto start
</pre>
<br />
I am no longer intimidated by PID. Should be fun.gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com7tag:blogger.com,1999:blog-2400014620360091118.post-21733654726853784692014-01-02T22:28:00.000-05:002014-01-02T22:28:53.436-05:00Photomosaics: framedIn college in 2008 I did a research project on photomosaics. More info can be found in <a href="http://www.onshoulders.org/2009/03/photomosaics-once-upon-time.html">another blog post</a>. One of the mosaics I created was of Albert Einstein's eyes. It even captured the twinkle. Ever since then it has been a source of inspiration for me. This xmas I asked for it to be framed so that I could hang it in my workshop. Here it is behind my desk.
<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-PQxsC7iT2v8/UsYr0Lb6AfI/AAAAAAAAU6w/k5yil4QQeWQ/s1600/IMG_20131227_020152.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="353" src="http://1.bp.blogspot.com/-PQxsC7iT2v8/UsYr0Lb6AfI/AAAAAAAAU6w/k5yil4QQeWQ/s640/IMG_20131227_020152.jpg" width="640" /></a></div>
<br />
<br />
So happy right now...gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com3tag:blogger.com,1999:blog-2400014620360091118.post-81897400503798532462013-12-31T19:17:00.000-05:002013-12-31T19:17:17.743-05:00tv: 3d Printable Rubber Band Gun<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/bnW9yNFoZEo" title="YouTube video player" width="640"></iframe><br />
<br />
Designing a printable rubber band gun has always been on my bucket list. I used the holiday season as an excuse to finally do it. You have to fight consumerism somehow, right? And what better way to fight it than to print rubber band guns for your relatives.
<br /><br />
Of course I'm releasing this to the community. Here are the files you will need to print one for yourself:
<br /><br />
<a href="https://github.com/GavilanSteinman/rbg">github.com/GavilanSteinman/rbg</a>gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com23tag:blogger.com,1999:blog-2400014620360091118.post-38417954384337990072013-08-10T20:40:00.000-04:002013-08-10T20:40:34.938-04:00tv: The Scratch Flight<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/Ka0qEru7lNg" title="YouTube video player" width="640"></iframe><br />
<br />
Building a remote controlled plane from scratch has always been at the top of my bucket list. This week I popped it off the stack, built, and flew! You could argue what I did isn't really flying. I might agree with you. Ha. But it's a start. I just need LOTS of practice!
<br /><br />
I built this plane out of dollar tree foam and packing tape by following the masterful tutorials of Experimental Airlines.
<br /><br />
<a href="http://www.youtube.com/user/ExperimentalAirlines/">http://www.youtube.com/user/ExperimentalAirlines/</a>
gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com54tag:blogger.com,1999:blog-2400014620360091118.post-60107848895321328282013-06-06T21:40:00.000-04:002013-06-06T21:50:01.649-04:00How to Organizing your Tools with DIY Modular Magnetic Strips<br />
I'm not the most organized person by nature. But the more organized I get, the more I realize how important it is for productivity. The more organized I am, the more productive I am, plain and simple. I've been looking for a way to be more organized with my tools. Before today I kept them in some random bins if they were for a specific project, or in my toolbox if they were for a general purpose. But I still had difficulty finding what I needed when I needed it. I couldn't see them!<br />
<br />
A few days ago a friend shared a link to an article on Cliff Stoll, a real life mad scientist. He's even got the hair to prove it. <a href="http://blog.makezine.com/2013/05/30/an-afternoon-with-cliff-stoll/">Here's the article.</a> In the article there's a picture of how Cliff organizes his tools using magnetic strips. How simple!<br />
<br />
I looked around amazon for some magStrips, but I didn't like what I found. They were expensive, and none of them were modular. I like modular. So I looked around craft stores and home improvement stores and came up with a jaw dropping DIY modular solution! <br />
<br />
First, I needed a surface to mount the magnetic strips. I created a frame from pine 1X2s to support a panel of Tempered Service Perf.<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-oxCMeorj6Us/UbExLqJlaTI/AAAAAAAADR0/Des6louEgF0/s1600/IMG_1509.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://4.bp.blogspot.com/-oxCMeorj6Us/UbExLqJlaTI/AAAAAAAADR0/Des6louEgF0/s640/IMG_1509.JPG" style="cursor: move;" width="640" /></a></div>
<br />
I then bought 100 0.5in diameter 1/16in thick Neodymium magnates.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-vl_AQj9opNc/UbExKH4ldyI/AAAAAAAADRI/WzlchWNTPbc/s1600/IMG_1482.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://2.bp.blogspot.com/-vl_AQj9opNc/UbExKH4ldyI/AAAAAAAADRI/WzlchWNTPbc/s320/IMG_1482.JPG" width="240" /></a></div>
I made a 5 layer sandwich of:<br />
<ul>
<li>0.5in X 1/8in steel flat</li>
<li>magnets spaced 1in apart</li>
<li>0.5in steel tube</li>
<li>magnets</li>
<li>steel flat</li>
</ul>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-gqOivVdOvyg/UbExKEeoceI/AAAAAAAADRE/9lipSLvxg0A/s1600/IMG_1473.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="150" src="http://3.bp.blogspot.com/-gqOivVdOvyg/UbExKEeoceI/AAAAAAAADRE/9lipSLvxg0A/s200/IMG_1473.JPG" width="200" /></a><a href="http://4.bp.blogspot.com/-4Y9Unn6X-bU/UbExMMrnsII/AAAAAAAADSA/_O6f0sei7Ic/s1600/IMG_1525.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="150" src="http://4.bp.blogspot.com/-4Y9Unn6X-bU/UbExMMrnsII/AAAAAAAADSA/_O6f0sei7Ic/s200/IMG_1525.JPG" width="200" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-yRSEfIo2TNI/UbExMjk3BdI/AAAAAAAADSQ/U7ONnQpVDjk/s1600/IMG_1528.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="http://4.bp.blogspot.com/-yRSEfIo2TNI/UbExMjk3BdI/AAAAAAAADSQ/U7ONnQpVDjk/s400/IMG_1528.JPG" width="400" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-4yMNH5zM-B0/UbExNcNFNFI/AAAAAAAADSg/mJPcoprwnkA/s1600/IMG_1530.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="http://2.bp.blogspot.com/-4yMNH5zM-B0/UbExNcNFNFI/AAAAAAAADSg/mJPcoprwnkA/s400/IMG_1530.JPG" width="400" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
I then printed ends that snapped into the center of the steel tube and hooked into the perf board. Here's the part, if you wanted to print it: <a href="http://www.thingiverse.com/thing:99852">http://www.thingiverse.com/thing:99852</a><br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-ahNoeBLqGJ0/UbExOIQ0muI/AAAAAAAADS4/ObhmqTIBCT4/s1600/IMG_1541.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="http://4.bp.blogspot.com/-ahNoeBLqGJ0/UbExOIQ0muI/AAAAAAAADS4/ObhmqTIBCT4/s400/IMG_1541.JPG" width="400" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-mDg-MsbmJ_A/UbExOKbHaAI/AAAAAAAADS8/mMZyMvnH9TY/s1600/IMG_1543.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="300" src="http://2.bp.blogspot.com/-mDg-MsbmJ_A/UbExOKbHaAI/AAAAAAAADS8/mMZyMvnH9TY/s400/IMG_1543.JPG" width="400" /></a></div>
<br />
Since the magnetic strips are perf board compatible, and since I have a wall of perf board now, I can arrange them in any way I need. I can also use any of the existing perf board hardware, like hooks and baskets. Here's the finished product:<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-bc8gyxWKdTQ/UbExOmGk5lI/AAAAAAAADTM/chyVEfdctxc/s1600/IMG_1551.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="http://4.bp.blogspot.com/-bc8gyxWKdTQ/UbExOmGk5lI/AAAAAAAADTM/chyVEfdctxc/s640/IMG_1551.JPG" width="480" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-Lzp9nOfXXD0/UbExO1OWkuI/AAAAAAAADTU/ttvUVBEcagQ/s1600/IMG_1553.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="http://3.bp.blogspot.com/-Lzp9nOfXXD0/UbExO1OWkuI/AAAAAAAADTU/ttvUVBEcagQ/s640/IMG_1553.JPG" width="480" /></a></div>
<br />
If you found this info helpful, let me know! If you have tricks you use to organize your tools and your workspace, I'd love to hear them!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com53tag:blogger.com,1999:blog-2400014620360091118.post-37620722173968388352013-04-04T17:50:00.000-04:002013-04-04T17:50:17.944-04:00RepRap - The Viral 3d PrinterMidwest RepRap Festival: Video 4 of 6 | 14:34<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/bLxJjdroT0U" title="YouTube video player" width="640"></iframe><br />
<br />
This is the 14 minute RepRap documentary from my trip to MRRF. You (my subscribers) and the RepRap community have given me so much! This video is my attempt at giving back. It took a lot of late nights in the editing room, but I'm finally done! Please help The Viral 3d Printer go even more viral!
<br /><br />
I traveled to Elkhart Indiana to get more information on the opensource 3d printing movement called RepRap. I interviewed core developers and users of the technology, as well as kids who are growing up with the technology.
<br /><br />
On top of the people who allowed me to film and interview them I would like to thank:
<br /><br />
<a href="http://MidwestRepRapFest.org">http://MidwestRepRapFest.org</a><br />
<a href="http://MakerspaceGoshen.org">http://MakerspaceGoshen.org</a><br />
<a href="http://SeeMeCNC.com">http://SeeMeCNC.com</a><br />
<a href="http://RoyalePhoenix.com">http://RoyalePhoenix.com</a><br />
<br /><br />
BoardForge:<br />
Jeff McAlvay works on Board Forge with folks from around the country. <br />
Visit <a href="http://boardforge.com">http://boardforge.com</a> for more info.<br />
<br /><br />
RepRap IRC:<br />
<a href="http://webchat.freenode.net/?channels=reprap">http://webchat.freenode.net/?channels=reprap</a>gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com64tag:blogger.com,1999:blog-2400014620360091118.post-35566559975063609042013-03-28T18:57:00.000-04:002013-03-28T18:57:55.876-04:003D printed Quadcopter at MRRFMidwest RepRap Festival: Video 3 of 6 | 6:02<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/jA3vnkyBtAk" title="YouTube video player" width="640"></iframe><br />
<br />
While at the Midwest RepRap Festival I was able to sit down (while standing) with Russ Reese and get some information on his quadcopter. I don't know what it is about quadcopters, but it's a must have for every robotics loving maker! Russ did a beautiful job on the quadcopter he demos for us!
<br /><br />
We would like to thank the following people for making the Midwest RepRap Festival possible:
<br /><br />
<a href="http://MidwestRepRapFest.org">http://MidwestRepRapFest.org</a><br />
<a href="http://MakerspaceGoshen.org">http://MakerspaceGoshen.org</a><br />
<a href="http://SeeMeCNC.com">http://SeeMeCNC.com</a><br />
<a href="http://RoyalePhoenix.com">http://RoyalePhoenix.com</a><br />
All the volunteers!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com59tag:blogger.com,1999:blog-2400014620360091118.post-83684033269159650792013-03-24T10:32:00.000-04:002013-03-24T10:32:17.369-04:00The new pico Hot-end by B3 InnovationsMidwest RepRap Festival: Video 2 of 6 | 5:02<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/RxA_YVlcJIk" title="YouTube video player" width="640"></iframe><br />
<br />
While at the Midwest RepRap Festival I was privileged to sit down with Will and Mike from B3 Innovations. They have a new hot-end design that is about to hit kickstarter. I'm really excited because it looks like a flawless hot-end design! I'm hoping to get their hot-end in a few months and no longer have hot-end issues on my reprap 3d printer.
<br /><br />
You can stay in the loop through their website, <a href="http://b3innovations.com">http://b3innovations.com</a>.
<br /><br />
We would like to thank the following people for making the Midwest RepRap Festival possible:
<br /><br />
<a href="http://MidwestRepRapFest.org">http://MidwestRepRapFest.org</a><br />
<a href="http://MakerspaceGoshen.org">http://MakerspaceGoshen.org</a><br />
<a href="http://SeeMeCNC.com">http://SeeMeCNC.com</a><br />
<a href="http://RoyalePhoenix.com">http://RoyalePhoenix.com</a><br />
All the volunteers!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com11tag:blogger.com,1999:blog-2400014620360091118.post-29688197933318167002013-03-21T19:11:00.001-04:002013-03-21T19:11:26.867-04:003d Printer Guinness World Record AttemptMidwest RepRap Festival: Video 1 of 6 | 3:01<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/FDqBbFnmsbI" title="YouTube video player" width="640"></iframe><br />
<br />
I traveled to Elkhart, Indiana last weekend for the first annual Midwest RepRap Festival. I brought my camera equipment in hopes to capture a piece of opensource hardware history. As it turns out, I did just that! And got to know some amazing people in the process.
<br /><br />
This is a Guinness World Record attempt at the most 3d printers printing at once. The attempt was held on March 16, 2013 at the First Annual Midwest RepRap Festival in Elkhart, Indiana, USA. We would like to thank the following people for making this possible:<br />
<br />
<a href="http://MidwestRepRapFest.org">http://MidwestRepRapFest.org</a><br />
<a href="http://MakerspaceGoshen.org">http://MakerspaceGoshen.org</a><br />
<a href="http://SeeMeCNC.com">http://SeeMeCNC.com</a><br />
<a href="http://RoyalePhoenix.com">http://RoyalePhoenix.com</a><br />
Printer Operators<br />
All the volunteers!<br />gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com3tag:blogger.com,1999:blog-2400014620360091118.post-11953071754262300292013-03-20T19:12:00.001-04:002013-03-21T19:12:06.451-04:00Vacation at Midwest RepRap FestivalLast weekend I took a vacation day so that I could spend the whole weekend at the first annual <a href="http://midwestreprapfest.org/">Midwest RepRap Festival</a>. It was a blast! I thought about bringing my printer, but it's practically an antique and I didn't know if it could manage the trip. Instead, I brought my cameras! All of them! Stay tuned for some amazing footage!<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-bHyKFJLOi0g/UUpCFXcDzRI/AAAAAAAACy4/n8UpRx8p9NI/s1600/mrrf.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="360" src="http://1.bp.blogspot.com/-bHyKFJLOi0g/UUpCFXcDzRI/AAAAAAAACy4/n8UpRx8p9NI/s640/mrrf.jpg" width="640" /></a></div>
gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com59tag:blogger.com,1999:blog-2400014620360091118.post-76175882320415134732013-03-06T07:30:00.000-05:002013-03-06T08:07:11.355-05:00tv: Measuring Battery UseSeason 3 : Ep. 12 | 3:46<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/X-rRTV8vlzU" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode I use the ACS714 Current Sensor to attempt to measure battery use of my dogbot leg. But will it work?gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com3tag:blogger.com,1999:blog-2400014620360091118.post-37534342216389510242013-02-24T14:09:00.000-05:002013-02-24T14:10:02.537-05:00tv: Solutions for Wire FlexibilitySeason 3 : Ep. 11 | 6:49<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/3JHTt4nGAVs" title="YouTube video player" width="640"></iframe><br />
<br />
This episode reviews some of my favorite viewer contributed solutions to my wire flexibility problem. Thanks to all who contributed their ideas! gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com0tag:blogger.com,1999:blog-2400014620360091118.post-1906932361487291702013-02-17T11:00:00.000-05:002013-02-17T11:00:11.024-05:00The Soul of a Maker<div class="separator" style="clear: both; text-align: left;">
In the last few months I have had a lot of time for introspection. It turns out I'm not just a guy who likes working with computers and dabbling in robotics in his spare time. I'm a guy who just likes making things. All things! Robotics is just a category of the things that I like to make.</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
I've always been this way, although I didn't realize it until recently. I don't want to make a wordy post about all the things that I've made in the past or present, but I do want to say that ever since I realized that I just like making things, and started embracing this part of myself, I've been happier.</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Here is one example of how I am now happier. Before realizing I just like making things I would have gone into this weekend pressuring myself into working on my dogbot and making a video. I would have measured my enjoyment by my progress, but that is no way to live! Instead, I went into the weekend wanting to work on my dogbot, but getting side tracked. I was researching braids so that I could braid a collection of wires running to the dogbot foot when a few ideas and desires collided.</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
My belts (the ones that hold up my pants) are getting old and falling apart. I don't want to buy anymore leather belts because... [whispers] I'm a vegetarian... and I don't want to spend the money for an organic "trendy" belt. I have 1000' of parachute cord and worn out belts with working buckles. I like making things. </div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Fast forward 2 hours and I have a new belt!</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Old belt buckle:</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://4.bp.blogspot.com/-L1001NGG0aE/USD1UZc8QJI/AAAAAAAACxo/FhNSjA0GbXE/s1600/IMG_1415.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="315" src="http://4.bp.blogspot.com/-L1001NGG0aE/USD1UZc8QJI/AAAAAAAACxo/FhNSjA0GbXE/s640/IMG_1415.jpg" width="640" /></a></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
New belt!:</div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-tmuBvA9o5nA/USD1U41YUzI/AAAAAAAACxk/A-fJp2upxBs/s1600/IMG_1450.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="http://1.bp.blogspot.com/-tmuBvA9o5nA/USD1U41YUzI/AAAAAAAACxk/A-fJp2upxBs/s640/IMG_1450.jpg" width="576" /></a></div>
<div class="separator" style="clear: both; text-align: left;">
<br /></div>
<div class="separator" style="clear: both; text-align: left;">
Making this parachute cord belt was not what I planned on doing this weekend, but the act of making it has made me very, very happy. To all you makers out there, be encouraged to embrace the true you. It's OK to jump from one project to another so long as you keep your work-space clean, and finish a few projects every once in a while. Adam savage has helped me realize that <a href="http://www.youtube.com/watch?v=29SopXQfc_s">"achieving the end of the exercise was never the point of the exercise to begin with, was it?"</a></div>
gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com3tag:blogger.com,1999:blog-2400014620360091118.post-3062289867771797612013-02-16T11:23:00.002-05:002013-02-16T11:24:09.812-05:00tv: Measuring Wire FlexibilitySeason 3 : Ep. 10 | 10:30<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/KPbwgY-tNV4" title="YouTube video player" width="640"></iframe><br />
<br />
I noticed a trend in the comments from the last video. I got a lot of comments about using a smaller gauge wire. In this episode I test the flexibility of 30 gauge, 26 gauge, and 26 gauge shielded wire. Thanks for all the feedback from the last episode! In the next episode I'll dive deeper into that feedback.
<br /><br />
Music: I Need to Know by Sweet Danger <a href="http://www.jamendo.com/en/track/1001531/sweet-danger-i-need-to-know">http://www.jamendo.com/en/track/1001531/sweet-danger-i-need-to-know</a>gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com1tag:blogger.com,1999:blog-2400014620360091118.post-85793804042048972342013-02-06T19:40:00.003-05:002013-02-06T19:40:56.785-05:00tv: A Problem of FlexibilitySeason 3 : Ep. 9 | 3:13<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/fTa8UaNMteQ" title="YouTube video player" width="640"></iframe><br />
<br />
I need your help. I'm stuck! I need a way to receive information from the DogBot foot without restricting it's movement. Any ideas? Please leave a comment if you have any ideas!
<br /><br />
Here are the background videos leading up to this one:
<br />
<a href="http://www.youtube.com/playlist?list=PL3snrjNPXd06-ehRLuxy9W5Q222wLs0ed">http://www.youtube.com/playlist?list=PL3snrjNPXd06-ehRLuxy9W5Q222wLs0ed</a>gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com3tag:blogger.com,1999:blog-2400014620360091118.post-13370821870579177642012-12-27T20:00:00.000-05:002012-12-28T10:02:05.893-05:00tv: How to Wire a RobotSeason 3 : Ep. 8 | 9:18<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/Bg9oNklC1OE" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we consider what goes into wiring a robot. We look at a cheap source of 24 gauge wire, look at standardized connectors, and go over wire organization.gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com2tag:blogger.com,1999:blog-2400014620360091118.post-31921241535331332842012-12-20T21:45:00.001-05:002012-12-20T21:45:04.775-05:00tv: Robotic Leg AssemblySeason 3 : Ep. 7 | 3:23<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/H_Y6WFRkYiE" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we assemble the latest version of the dogBot leg!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com1tag:blogger.com,1999:blog-2400014620360091118.post-79133931530854779172012-12-08T12:39:00.000-05:002012-12-09T09:24:18.489-05:00tv: Servo AnimationSeason 3 : Ep. 6 | 4:18<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/ygX7sQM2gq0" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we plug in our hacked servo. This hack allows us to not only tell the servo what to do, but also record movement. One application of this is to record a manual motion while the servo is disabled, then enable the servo and play the motion back! - Season 3 : Ep. 6 For more episodes, visit: http://tv.onshoulders.org
<br /><br />
Test Bed Details:<br />
Hardware - Boarduino<br />
Arduino Code - <a href="https://gist.github.com/4241105">https://gist.github.com/4241105</a><br />
Wiring - White wire to a0, with voltage divider<br />
Need more test bed details? Just ask.<br />
<br /><br />
I'd like to thank jes1510 for his excellent work getting me started with servo hacking:
<a href="http://forums.trossenrobotics.com/tutorials/how-to-diy-128/get-position-feedback-from-a-standard-hobby-servo-3279/">http://forums.trossenrobotics.com/tutorials/how-to-diy-128/get-position-feedback-from-a-standard-hobby-servo-3279/</a>
<br /><br />
Thanks for watching and don't forget to subscribe!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com1tag:blogger.com,1999:blog-2400014620360091118.post-10884971322144446232012-11-29T20:37:00.002-05:002012-11-29T20:37:34.985-05:00tv: Hacking a Servo TrimpotSeason 3 : Ep. 5 | 3:28<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/LlhaG12EpQs" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we hack the trimpot of a servo in order to read the position of the servo. This servo will be used in an ongoing robotic dog project.
<br /><br />
Thanks for watching and don't forget to subscribe!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com2tag:blogger.com,1999:blog-2400014620360091118.post-39476508762637065732012-11-14T18:37:00.000-05:002012-11-14T18:37:05.997-05:00tv: Accelerometer & Proximity SensorSeason 3 : Ep. 4 | 3:59<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/t_XyZkx9BW8" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we add a 3-axis accelerometer and an infrared proximety sensor to the DogBot foot.
<br /><br />
Visit the following links for more information on the sensors used in this episode.
<br /><br />
<a href="http://www.adafruit.com/products/163">http://www.adafruit.com/products/163</a>
<br />
<a href="http://www.pololu.com/catalog/product/1132">http://www.pololu.com/catalog/product/1132</a>
<br /><br />
Go here to get a tutorial on how to write visualization apps that can interface with an arduino:
<br /><br />
<a href="http://www.codeproject.com/Articles/389676/Arduino-and-the-Web-using-NodeJS-and-SerialPort2">http://www.codeproject.com/Articles/389676/Arduino-and-the-Web-using-NodeJS-and-SerialPort2</a>
<br /><br />
Thanks for watching and don't forget to subscribe!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com0tag:blogger.com,1999:blog-2400014620360091118.post-254957149026943362012-11-04T22:00:00.000-05:002012-11-14T18:33:55.701-05:00tv: Force Sensitive Resistor, Part 2Season 3 : Ep. 3 | 3:52<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/JHafJSWq9jg" title="YouTube video player" width="640"></iframe><br />
<br />
In this episode we will add the force sensitive resistor to the DogBot and do some preliminary tests.gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com2tag:blogger.com,1999:blog-2400014620360091118.post-474093761181327652012-11-03T20:00:00.001-04:002012-11-03T20:01:11.287-04:00RepRap: Halloween Costume I printed myself a pair of Harry Potter glasses for a Halloween party! How cool is that?<br />
<br />
Even cooler is the fact that I didn't design them! Downloaded them off of Thingiverse, I did. <a href="http://www.thingiverse.com/thing:12993">http://www.thingiverse.com/thing:12993</a><br />
<br />
I love this ecosystem!<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-m6iAwjrqyUM/UJWp31dp-uI/AAAAAAAACwI/Wz-FyouKL_M/s1600/2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="http://2.bp.blogspot.com/-m6iAwjrqyUM/UJWp31dp-uI/AAAAAAAACwI/Wz-FyouKL_M/s400/2.jpg" width="300" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-VdXS1b3x2RI/UJWp23FOHII/AAAAAAAACwA/inIg4H0sFFw/s1600/1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="400" src="http://2.bp.blogspot.com/-VdXS1b3x2RI/UJWp23FOHII/AAAAAAAACwA/inIg4H0sFFw/s400/1.jpg" width="280" /></a></div>
<br />
<br />
<span id="goog_790329646"></span><span id="goog_790329647"></span>gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com0tag:blogger.com,1999:blog-2400014620360091118.post-34888908634279326512012-10-28T21:46:00.000-04:002012-10-28T21:46:12.532-04:00tv: Force Sensitive Resistor, Part 1Season 3 : Ep. 2 | 3:54<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/5rPwJ_kkbOw" title="YouTube video player" width="640"></iframe><br />
<br />
Who wants to incorporate touch sensors when you can incorporate force sensitive resistors? In this episode we start to explore a force sensitive resistor for the DogBot!gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com0tag:blogger.com,1999:blog-2400014620360091118.post-90652663861361268522012-10-21T09:54:00.000-04:002012-10-21T09:58:02.246-04:00tv: Season 3 BeginsSeason 3 : Ep. 1 | 2:47<br />
<br />
<iframe allowfullscreen="allowfullscreen" frameborder="0" height="390" src="http://www.youtube.com/embed/nvj7L0ylGjQ" title="YouTube video player" width="640"></iframe><br />
<br />
I introduce my new workshop in this episode.gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com1tag:blogger.com,1999:blog-2400014620360091118.post-19077084569040868602012-10-17T18:03:00.000-04:002012-10-17T18:03:37.443-04:00RepRap: UnboxingAs you know, I moved recently. I don't have many possessions, but one of my most prized possession is my 3d printer. I mean, I printed it myself on a printer I made by hand using primitive wood tools. I could make another one, but I don't want to start from scratch again! I'd rather use the printer I have to print my next one. So when I was packing up my small apartment I took extra care to pack my printer.<br />
<div>
<br /></div>
<div>
I started with a piece of 2 inch thick insulation board.<br />
<div>
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-GxE5Koe2ULA/UH8mxJROnTI/AAAAAAAACuM/C7TeGFTpLvM/s1600/P1020705.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://3.bp.blogspot.com/-GxE5Koe2ULA/UH8mxJROnTI/AAAAAAAACuM/C7TeGFTpLvM/s640/P1020705.JPG" width="640" /></a></div>
<div>
<br /></div>
</div>
<div>
I made a box out of it.</div>
<div>
<br /></div>
<div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-Vm4WLCUp7JI/UH8nlawQWxI/AAAAAAAACuU/RdYcuwaIHUU/s1600/P1020714.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://3.bp.blogspot.com/-Vm4WLCUp7JI/UH8nlawQWxI/AAAAAAAACuU/RdYcuwaIHUU/s640/P1020714.JPG" width="640" /></a></div>
<br />
I then wrapped the box in a whole roll of plastic moving wrap.<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://2.bp.blogspot.com/-zzPv33gTwW8/UH8ob3TE_jI/AAAAAAAACuw/odC9EByfDgo/s1600/P1020740.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://2.bp.blogspot.com/-zzPv33gTwW8/UH8ob3TE_jI/AAAAAAAACuw/odC9EByfDgo/s640/P1020740.JPG" width="640" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<br />
And if anyone forgot what was in the box I labeled it properly!<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-LoAjgPILn5M/UH8oNrfDr1I/AAAAAAAACuo/QA72Hh4KPO0/s1600/P1020733.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://3.bp.blogspot.com/-LoAjgPILn5M/UH8oNrfDr1I/AAAAAAAACuo/QA72Hh4KPO0/s640/P1020733.JPG" width="640" /></a></div>
<br />
This box was the printer's home ever since. I needed time to move in and set up my workshop before I wanted to risk stripping off the cocoon. But today was the day!<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-nM7argA2ZkM/UH8pnqjJJqI/AAAAAAAACu8/fkFSvEGhLac/s1600/P1130123.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://1.bp.blogspot.com/-nM7argA2ZkM/UH8pnqjJJqI/AAAAAAAACu8/fkFSvEGhLac/s640/P1130123.JPG" width="640" /></a></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-Bttu6zCib6Y/UH8p2lgPwiI/AAAAAAAACvE/_fSRllilozk/s1600/P1130133.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://3.bp.blogspot.com/-Bttu6zCib6Y/UH8p2lgPwiI/AAAAAAAACvE/_fSRllilozk/s640/P1130133.JPG" width="640" /></a></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://3.bp.blogspot.com/-V85SldteKG4/UH8qBi0MyTI/AAAAAAAACvQ/t8qZ033TF50/s1600/P1130140.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://3.bp.blogspot.com/-V85SldteKG4/UH8qBi0MyTI/AAAAAAAACvQ/t8qZ033TF50/s640/P1130140.JPG" width="640" /></a></div>
<br />
And here it is getting acquainted to its new home!<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://1.bp.blogspot.com/-D9ME7QraHKw/UH8qGG05WqI/AAAAAAAACvY/HDtT-gbYGrw/s1600/P1130145.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="http://1.bp.blogspot.com/-D9ME7QraHKw/UH8qGG05WqI/AAAAAAAACvY/HDtT-gbYGrw/s640/P1130145.JPG" width="640" /></a></div>
<br />
Does it still work? I hope so! I don't have time to plug it in...</div>
gavilanhttp://www.blogger.com/profile/17701338431194287203noreply@blogger.com0