<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hey John,</div><div><br></div>Congrats to your friend; they have more funds than they possibly need :-P. <div><br></div><div>I assume you're saying that using free parts makes your build more expensive. Doesn't that seem ironic? <br><div><br><div apple-content-edited="true">
<div>John Kim</div><div>Student/FOSS Enthusiast</div><div><a href="http://www.internet-in-a-box.org">www.internet-in-a-box.org</a></div><div><a href="mailto:thinkndev@gmail.com">thinkndev@gmail.com</a></div><div><br></div><br class="Apple-interchange-newline">
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<br><div><div>On Aug 17, 2013, at 10:47 PM, Tux Lab <<a href="mailto:project.tuxlab@gmail.com">project.tuxlab@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><p dir="ltr"><br>
The link to my friend's kickstart is,</p><p dir="ltr"><a href="http://www.kickstarter.com/projects/blueeaglelabs/kossel-clear-lets-build-a-full-sized-delta-3d-prin" target="_blank">http://www.kickstarter.com/projects/blueeaglelabs/kossel-clear-lets-build-a-full-sized-delta-3d-prin</a></p><p dir="ltr">Tux-Lab is responsible for the acrylic parts and has a minor stake in the 3d printing venture. The printer for SGVLUG/SGVHAK is built on the same frame but pushes the "Free as in Freedom" ideology by minimize parts from non-free countries. By substituting parts, ie steppers, bearing and etc, I think I've already exceeded their kickstarter price by 100%. If I can somehow figure out how to generate gerber files for the electronics, I will build a few more printers</p><p dir="ltr">. <br>
</p><p dir="ltr">John<br></p><p><br></p><p dir="ltr">On Fri, Aug 16, 2013 at 1:41 AM, Lan Dang <<a href="mailto:l.dang@ymail.com" target="_blank">l.dang@ymail.com</a>> wrote:<br>
> Hi all,<br>
><br>
> Before I get to the recap, three items.<br>
><br>
> 1) There is a Repair Cafe event this Saturday (Aug 17th) from 6-9pm at<br>
> Arroyo Food Co-op store (494 N. Wilson @Villa in Pasadena). I am not clear<br>
> if one must RSVP on Meetup in order to attend. I don't think I will be<br>
> there long, but I promised to bring ice cream. I rather feel like making<br>
> Nutella ice cream. <br>
><br>
> <a href="http://www.meetup.com/Repair-Cafe-Pasadena/events/126348712/" target="_blank">http://www.meetup.com/Repair-Cafe-Pasadena/events/126348712/</a><br>
><br>
> 2) The next HAK meeting is Saturday, August 24th, from 2-6pm at Hastings<br>
> Branch Library (3325 East Orange Grove Boulevard Pasadena, CA 91107). I<br>
> will send out another reminder closer to the date. Let me know if you're<br>
> planning any kind of show and tell or workathon so I can publicize it. <br>
><br>
> 3) In the future, let's start the Thursday meetings at 6:30pm. That will<br>
> give Dave enough time to finish his work before we descend on him. Most of<br>
> us can't get there till around that time anyway.<br>
><br>
><br>
> RECAP:<br>
><br>
> As usual, it was a fun HAK meeting. We had a larger than normal turnout<br>
> since we had folks who hadn't come to Dave's shop (or any HAK meeting)<br>
> before as well as folks we hadn't seen in months.<br>
> <br>
> I think we hit a peak of 15 people at the shop, of which 10 stayed to the<br>
> end and came to dinner. Carmine's on Live Oak seems to be our place now,<br>
> and the wait staff has noticed our regular attendance.<br>
><br>
> There was a lot of activity. Dave was still working on something for work. <br>
> Adam and John K. were working on installing packages on Dave's new Linux<br>
> computer. John W. had another 3D printer kit he was assembling. I don't<br>
> remember if he has posted a link to his friend's Kickstarter. Braddock and<br>
> Joel and John K. worked on Internet-in-a-Box. Mic was doing another<br>
> lockpicking workshop. Thanks to Homan's advice and memories of Mic's LUG<br>
> presentation, I was able to pick 3 or 4 locks in quick succession. I hadn't<br>
> realized that you *barely* want to put any tension on the lock. <br>
><br>
> I brought a cooler with dry ice and several different ice creams. There<br>
> were Klondike bars, Skinny Cow sandwiches, homemade peach ice cream, a<br>
> homemade mango-passion-fruit yogurt mousse. I had the beginnings of a<br>
> cantaloupe sorbet. <br>
><br>
> We did indeed make ice cream using a cryogenic bath of dry ice and vodka. <br>
> The inspiration for this was the following MAKE article. <br>
> <a href="http://makezine.com/2010/01/15/make-projects-15-minute-ice-cream/" target="_blank">http://makezine.com/2010/01/15/make-projects-15-minute-ice-cream/</a><br>
><br>
> Mic had suggested using vodka instead of denatured alcohol because we didn't<br>
> want to worry about tainting the ice cream with something potentially toxic. <br>
> I got the containers recommended in the article, which was a gallon-sized<br>
> beverage cooler and a bain-marie, which is basically like a stainless steel<br>
> beaker.<br>
><br>
> We pulverized the dry ice with a rolling pin--great therapy for a bad day at<br>
> work. The guys took turns pouring it into the beverage cooler. We then<br>
> poured in vodka and got hit with a faceful of alcoholic fumes and a lot of<br>
> fog coming out of the cooler. We ultimately ended up dumping the entire<br>
> bottle of vodka into the cooler.<br>
><br>
> Mic jury rigged a handle for the bain-marie using a wire hanger. This gave<br>
> us a safe way to lift it in and out of the dry ice/vodka.<br>
><br>
> At first, we were unable to make a liquid bath. The top froze over, so we<br>
> just rested the bain-marie on a thick ice crust and got very wet cantaloupe<br>
> slush. Then Mic realized that the vodka was still liquid underneath the ice<br>
> crust, so he pounded away at the crust and broke through to the liquid at<br>
> the bottom of the cooler. Now we were able to freeze the sorbet. We only<br>
> made a small amount at a time, because we needed the cooling liquid to come<br>
> up to the same level as the sorbet in the bain-marie. We stirred vigorously<br>
> with a rubber spatula until it became too solid to stir.<br>
><br>
> This is our jury-rigged ice cream maker in action. Notice the empty bottle<br>
> of vodka in the corner. We did this out in the parking lot with a nice<br>
> breeze.<br>
> <a href="http://i.imgur.com/N1c2XIJ.png" target="_blank">http://i.imgur.com/N1c2XIJ.png</a><br>
><br>
> Now the guys give me a hard time and tell me I should have been using liquid<br>
> nitrogen. All I can say is: you bring the liquid nitrogen, I'll provide the<br>
> ice cream base.<br>
><br>
><br>
> Lan<br>
><br>
> N.B. Apparently, you can keep your dry ice from sublimating too quickly by<br>
> insulating it really well. The first layer of insulation is wrapping the<br>
> dry ice in several inches of newspaper. Fill the cooler with wadded up<br>
> newspaper to further insulate the cooler I am going to try using a<br>
> wadded-up thermal blanket since I have one wadded in a bag somewhere, never<br>
> having figured out how to refold the crinkly material.<br>
</p>
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