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Nirgal38

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4Instructables32,084Views98CommentsUSA, North America, Earth, Solar System, Orion Spur, Sagittarius Arm, Milky Way
Astronomer, artist, electronics hobbyist, writer and foodie.

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  • Homemade Mozzarella Cheese (Only 2 Ingredients!)

    We're making pizza with it this evening! I did a test to see how it melted and browned by using a heat gun... gooey and lightly browned just like the cheese on a pizza should be!

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  • Homemade Mozzarella Cheese (Only 2 Ingredients!)

    The hardest part was finding milk that wasn't ultra-pasteurized. From measuring the milk to tasting took less than an hour. And it tasted amazing. This one is definitely a keeper.

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  • Homemade Mozzarella Cheese (Only 2 Ingredients!)

    I've made mozzarella using the rennet/citric acid method and it's a bit of a pain. So I'm looking forward to trying it this way.Have you used this for making pizza or lasagna? If so, how did it brown when baked?

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  • Making Of: Frank Zappa Stop-Motion Puppet

    Please! I was looking forward to seeing that.Reminds a bit of the work that Bruce Bickford did for Zappa (and that's a high compliment).

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  • Making a Tiny Mac From a Raspberry Pi Zero

    I didn't make the case (3D printer needs some repairs) and I used a Raspberry Pi 3B+. But getting Mac emulation running on something even that small was a lot of fun!Great Instructable!

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  • Print and Assemble the Saturn V Moon Rocket - 1:96 Scale Paper Model

    I'm on a Facebook group for planetarium professionals and shared this there. A lot of folks really like it!

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  • Print and Assemble the Saturn V Moon Rocket - 1:96 Scale Paper Model

    Fantastic! I wish the technology to make a model like this had been available when I was watching the moon missions 50 years ago!

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  • Raspberry Pi Stop-Motion Animation Rig

    I really don't remember and it's been several months. However, looking through the scripts, it doesn't look like that problem exists anymore. It might be that textinput, TextInput and text_input were where the problem was.

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  • It's a nice pattern but I ran into some definite issues trying to adapt it to a men's large:-The wrist fit nicely when I used 36 stitches to fit a 8" wrist.-Even after adding two additional rows, the thumb is too small.-By reducing the number of stitches after the thumb, the palm/knuckle area was too narrow and constricting.-The ribbing that covers the knuckles went too far down the fingers and restricted their movement quite a bit.But I've found this as a good starting place and I'll make adjustments accordingly.

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  • One of the guys in our MakerSpace (whose Python skills are far superior to mine) was able to find what the problem was (a variable had the same name as a function call) and got it working great!It was a HUGE hit at our First Friday Open House. We did an Animation Celebration with the Raspberry Pi Stop Motion Animation Station, flip books, thaumatropes and phenakistoscopes. I would have liked more objects to animate because we got a lot of animations of a rubber frog, a rubber cockroach and a rubber duck. Again, this is an awesome instructable and I'm adding it to my favorites!

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  • I built one of these for our MakerSpace and it gets its first trial run on Friday. However, I've run into two glitches (one of which I think I can fix). The one I can fix is that the picture is upside down on the build surface (the bottom of the screen is towards the camera arm... I'm going to look through the script to see if I can rotate it 180).The other one, I'm at a loss. When I save, it prompts me for a name and it saves. Then, no matter how long I wait, if I ask it to save a second video, it crashes on me. The frames are still there but it doesn't save a video.I managed to save some work by using ffmpeg directly from the command line but that's not the best solution.Could it have something to do with the fact that when I asked it to install pygame, it couldn't find it? I get no err…

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    I built one of these for our MakerSpace and it gets its first trial run on Friday. However, I've run into two glitches (one of which I think I can fix). The one I can fix is that the picture is upside down on the build surface (the bottom of the screen is towards the camera arm... I'm going to look through the script to see if I can rotate it 180).The other one, I'm at a loss. When I save, it prompts me for a name and it saves. Then, no matter how long I wait, if I ask it to save a second video, it crashes on me. The frames are still there but it doesn't save a video.I managed to save some work by using ffmpeg directly from the command line but that's not the best solution.Could it have something to do with the fact that when I asked it to install pygame, it couldn't find it? I get no error in the console when I run the script but this is odd and my python skills are far too limited to figure out what the problem is.Still, all in all, a GREAT project!

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  • Do you have any images showing this making an image or pattern with a laser?

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  • That, sir, is a thing of beauty. A friend and I made a much smaller anvil many years ago by using some scrap from a railroad repair project (they paid us to haul it away) but it was a small, pitiful thing compared to this.At this point in my life, I have neither the ability nor the need to have such an anvil but maybe the folks at my Maker Space will be inspired to add something like this to their ever expanding metal shop. If nothing else, they'll be able to justify the expense of restoring a huge Bridgeport mill.

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  • My sister made one of these for me, complete with the tie. He oversees my office and makes sure I don't take things too seriously.Of course, now I have to make a mask for playing Calvinball!

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  • You need to connect it to the extruder fan port. The wiring on my laser was reversed (black wire where red wire should be and vice versa) so be sure to check the polarity. I had to do some cutting, soldering and shrink tubing and it works great! You'll know if it's right if a green light comes on the laser control board. When the laser is active, a red LED on that board will light up.

    With the text tool, be sure to select the text then go under the "PATH" option in the menu and select "Object to Path" before running the J Tech Photonics Laser Tool.If you're using text and graphics, make sure to outline any imported graphics then group all objects (CTRL-A to select all then CTRL-G to group them). Then do the "Object to Path". Finally, run the laser tool.I edit my G code to home the printer first (G 28 then G4 P0) and set the height in the first line that sets where the print head will go first.Here's the results I got trying it on a pencil. The logo itself is only 2.9 mm wide so it does a pretty good job for something built at home.

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  • Nirgal38 commented on JohnW539's instructable The Astronomy Clock

    Very cool. I have only one suggestion for anyone who would want to use this in an observatory or when out observing: use red LEDs. Red lights are used by astronomers the world around because the retina is sensitive to red light but the pupil isn't. You'll be less likely to lose your dark adaptation.Now... can I fit that gear on my printer? It's awfully close....

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  • It's taken some fits and starts but I'm really enjoying the project.Considering that the laser arrived yesterday and I promised myself I wouldn't try it until after work, I'm pleased with the results.And, yes, I'm a Star Trek nerd. :)

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  • Nirgal38 made the instructable Intro to Python
    Intro to Python

    I ran the first project from IDLE and from the Linux shell and it worked well in both.Forgive my messy office for the camera capture. It looks a lot better than I do this morning!

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  • Nirgal38 made the instructable Floral Stitch Sampler
    Floral Stitch Sampler

    I'm not overly fond of the petal (lazy daisy) stitch but surprised myself with things like French knots and the closed fly stitch.Now to start working on my own designs.

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  • Nirgal38 made the instructable Basic Stitch Sampler
    Basic Stitch Sampler

    Each summer, I try to learn a new skill. This summer, it's embroidery. I think my first attempt is pretty good although I know I need more practice.

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  • Nirgal38 commented on AMbros Custom's instructable Coal Forge Build

    Incredible build! I'd be proud to have a forge like this.Years ago, a friend and I wanted to make a portable forge for a demonstration we did at a museum. For the fire pit, we used a cast iron sink then lined it with refractory clay. We mounted it in a wooden frame because it was supposed to look medieval. Your solution is far more elegant and if I were to take up blacksmithing again, I'd want to use something like this.

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  • I think he means that you drive this with some external mechanism to have it generate electricity. If you use a simple DC motor like the kind from a toy car, if you spin it with your fingers or attach some kind of fan blade to it, you can get it to act as a generator (although not much voltage or current). I've lit an LED this way just to demonstrate the principle.I honestly don't know if a brushless motor would do the same thing if you were to spin it up by hand.

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  • Then you're good to go! I was just worried that someone might use that method with a DSLR.As I tell folks when it comes to viewing the sun with an unfiltered telescope, it's a mistake they can make only twice.

    Total cost today: $4.Total cost for cataract surgery because you used a material that isn't known to block ultraviolet light: an estimated $3600 per eye.It's not the brightness of the light although it is a factor. It's the invisible UV that can cause permanent and irreparable damage. Now if you're not looking through the finder of a DSLR, you don't need to worry. Your camera won't get cataracts. But this isn't something to play around with and it's not the time to be cheap.

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  • Nirgal38 commented on Nirgal38's instructable Awesome BBQ Ribs

    In step 4, you'll see that my grill is equipped with a thermometer that shows the optimal temperature range. However, I haven't measured this in Celsius or Fahrenheit. But I'm thinking it's about 250 to 300 degrees Fahrenheit (about 120 to 150 Celsius).As for time, I don't generally cook using a clock. However, they generally take about an hour. What I do is turn them about four times and cook them 15 minutes per turn. Then I break out the meat thermometer until the internal temperature is 165 to 175 degrees Fahrenheit (74 to 79 degrees Celsius). I did learn a very valuable lesson with a meat thermometer. If you're using an old style dial thermometer, don't leave it in the meat when it's cooking. The covering on the dials used to be made of heat resistant glass. Today, they're made of a p…

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    In step 4, you'll see that my grill is equipped with a thermometer that shows the optimal temperature range. However, I haven't measured this in Celsius or Fahrenheit. But I'm thinking it's about 250 to 300 degrees Fahrenheit (about 120 to 150 Celsius).As for time, I don't generally cook using a clock. However, they generally take about an hour. What I do is turn them about four times and cook them 15 minutes per turn. Then I break out the meat thermometer until the internal temperature is 165 to 175 degrees Fahrenheit (74 to 79 degrees Celsius). I did learn a very valuable lesson with a meat thermometer. If you're using an old style dial thermometer, don't leave it in the meat when it's cooking. The covering on the dials used to be made of heat resistant glass. Today, they're made of a plastic that isn't heat resistant.That's a Thanksgiving dinner my family will never let me live down. :)

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  • Star Trek fan from way back and woodworker with moderate skills. I have to say that this is one of the most awesome builds I've ever seen.

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  • Nirgal38 commented on stvnishere's instructable The pocket grill

    Which gases would those be? It would have to get really hot to vaporize the copper and copper used in plumbing is of such high purity that it shouldn't be an issue.If copper combines with oxygen, it becomes a greenish or reddish coating on the outside of the copper (copper oxidizes in different ways). It won't outgas.I just did a quick web search and copper is likely to be one of the safest materials for making this.

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