Omaha Maker Group - Latest Comments

Re: TacitTheremin: A spatial awareness tool for the blind.

John — Mon, 25 Feb 2013 16:01:11 -0000

and kindly upload the video again it make problem..!!!

Re: TacitTheremin: A spatial awareness tool for the blind.

John — Mon, 25 Feb 2013 15:42:47 -0000

Kindly tell one thing that we can attached the both project that was the Grathio and your audio based project??
If yes so how can we attached the software and hardware...???
Kindly also answer it thanks..!!!

Re: TacitTheremin: A spatial awareness tool for the blind.

John — Mon, 25 Feb 2013 15:33:28 -0000

Great one...!!!
Can you give the details of this project like Grathio...
details like circuit diagram ,block daigram etc??
Kindly share all the stuff related to that project...!!!
Thanks..!!!!

Re: Lincoln Makerspace

Eric — Fri, 14 Sep 2012 14:11:53 -0000

No, I can't reach them there, unless I have a Facebook account. Weak.

Re: RedBull Creation 2012 Entry

Aziz Chaudhry — Sun, 08 Jul 2012 14:15:57 -0000

What brainwave reading device are you guys using? It does not seem clear in the video.

Re: KC Maker Faire 2012

Luis E. Rodriguez — Fri, 06 Jul 2012 12:39:36 -0000

Hey guys, thanks for coming, no worries on the booth. Now you are ready for next year! I was glad you got in for FREE! The bubble printer was actually made by a CCCKC hackerspace member, Matt Bell. (http://bellcode.wordpress.com/... Since I work at Union Station/Science City let me know if you need any info on anything you saw, including the water table. I've already started down the path of Makers exhibiting their creations so the world is quite literally open to the idea of Open Source Exhibits.

Re: KC Maker Faire 2012

Rjessee — Fri, 06 Jul 2012 11:14:53 -0000

Thanks for Visiting MakerFaireKC2012. Keep us posted on OMG activities...Randall the Rocketeer from KC

Re: Egg Drop Contest – Results

Steevveen — Sat, 07 Apr 2012 15:31:51 -0000

aka steven

Re: Egg Drop Contest – Results

Steevveen — Sat, 07 Apr 2012 15:30:53 -0000

it is ok that we r not in

Re: OMG’s Patrick Pecoraro to present Contrast, a custom pinhole camera inspired exhibition

Patrick Pecoraro — Tue, 10 Jan 2012 09:28:28 -0000

Wow, travis that looks great thanks for the fix!

Re: Maker High Fashion…the EL Coat

Travis_Smith — Sun, 18 Dec 2011 16:48:24 -0000

You know, at least 2/3rds of the people who have replied to this post so far own recumbent bikes. I think that says something important...like I need a recumbent. Cool mod!

Re: Maker High Fashion…the EL Coat

Travis_Smith — Sun, 18 Dec 2011 16:44:43 -0000

Seizure coat! I like it.

Re: Maker High Fashion…the EL Coat

Keith Smith — Sat, 17 Dec 2011 21:53:27 -0000

Random micro second pulses would be cool... leave folks wondering if they really saw that. ;>)

Re: Maker High Fashion…the EL Coat

Tim — Sat, 17 Dec 2011 21:00:05 -0000

sweeet

Re: Maker High Fashion…the EL Coat

Pat Joseph — Sat, 17 Dec 2011 18:16:14 -0000

I've been using EL Cable as a lighting scheme for my bicycle on the annual Omaha Owl Ride. I created a flashing EL Cable sign suspended between two bicycle safety flag poles. You can see it at the end of this video from 2010.

http://www.youtube.com/watch?v...

Re: Doorbell Upgrade

Jeff J — Wed, 05 Oct 2011 17:27:04 -0000

I had the same need and my circuit and implementation were very similar including grinding a diagonal on the LED to direct more light to the button. The initial performance was so bright, it was visible from several blocks away. My final results were also the same, the LED got dimmer over time until it went out.

One thought is back EMF from the doorbell coil eventually destroyed the LED, the other is that the LED was driven too hard. The next version I'm thinking of would have a full-wave bridge to get 60Hz instead of 30Hz, install a pair of zener diodes to provide protection to the LED, and a larger current-limiting resistor.

Re: The Mendel is Alive!!@!!

Luke — Thu, 01 Sep 2011 20:51:59 -0000

Nice bearing housings!

Re: Doorbell Upgrade

DaveK — Fri, 12 Aug 2011 15:54:05 -0000

Thanks. I had to come up with a way to make the project take longer, or I'd have been stuck doing the brakes on the car :D

Unfortunately, it looks like I'll need to fix it again, the LED has gone out. I suspect either the peak current was too much for the LED, or my junk box diode wasn't rated for that voltage.

Re: Print heads for the Makery Mendel

Travis — Fri, 12 Aug 2011 08:18:47 -0000

Excellent. Man, I can't wait to use this. I'm coming in Sunday to work on it.

Re: Doorbell Upgrade

Travis — Fri, 12 Aug 2011 08:17:27 -0000

Great post, Dave! I liked how you started off replacing a faulty doorbell and ended up making the old one better than ever instead. :) Cutting the LED to help it diffuse the light was a nice touch as well.

Re: Sous Vide: Cooking for Nerds

Travis — Sun, 03 Jul 2011 23:48:43 -0000

I like the idea of adding a tenderizer. Will have to try it!

The research I've done on the homebrew sous vide setups does have a few that make use of crock pots. However, I've read that rice cookers are supposed to be better for water circulation since the heating element is on the bottom rather than having a more uniform distribution a la the crock pot. High end professional models actually incorporate a water circulator for added uniformity in temperature. Crock pots are an option, though.

I like the idea of making your own temp controller through experimentation. :) Might be a fun thing to try if enough people want to make their own.

The cheapy ziploc suction device is actually what I'm using right now. Maybe I'll get a fancy suction device someday...

Re: Sous Vide: Cooking for Nerds

DaveK — Sun, 03 Jul 2011 19:05:07 -0000

Cool. I'm curious what happens if you add a little meat tenderizer (raw papya paste, or prepared tenderizer).

In case anyone is tempted to try it, this doesn't work well with a basic crock pot without additional power controls. I tried a steak this way, but it's difficult to keep the temperature from getting too high unless you constantly monitor it. The resulting steak was good, but more well done than I had intended.

I think that a cheaper version of this could be done quite acceptably simply by attaching a lamp controller to a crock pot. I would set it to low power, let the temp stabilize, record the settings, then repeat about four or five times up the power scale. Use those data points infer the power settings required for the given temperature (while being aware that ambient temp will affect the power).

Active temp control will be much easier, but one can give it a try pretty cheaply. For producing the vacuum the Ziploc manually-operated vacuum sealer ( http://www.amazon.com/Johnson-... ) can be used. It's not as good as a high quality powered sealer, but for 6 bucks it's a good start.

Re: Sous Vide: Cooking for Nerds

Kevin — Sun, 03 Jul 2011 18:36:21 -0000

Awesome work, Trav! When are you having us over for dinner?

Re: OMGWTFBBQ in Review

Brandon — Wed, 29 Jun 2011 10:47:28 -0000

I climbed a tree!

Re: Geiger Counter Project: Complete

Kevin — Sun, 01 May 2011 12:01:39 -0000

Very nice... Where did you take your "sea level" baseline reading?