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92Instructables3,365,812Views1,873CommentsSan Francisco, CaliforniaJoined October 27th, 2013
I'm an inventor / maker / designer based in the Bay Area. My background is in residential architecture, film set design, animatronics, media arts, exhibit design, and electronics. I use digital design and fabrication to create furniture, household products, toys, and art. Want to buy one of my designs or commission one? Please check out my portfolio: http://jonatron.portfoliobox.net

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  • JON-A-TRON commented on JON-A-TRON's instructable Off Grid Power Supply3 hours ago
    Off Grid Power Supply

    Dude, thanks for the solid advice! I've got some holes to drill...

    What's a dynamo?

    I've got a 250V fuse on the AC input and heave gauge wires everywhere, but do you think I need a fuse on the DC input to the battery?

    Yeah, those are 3D printed. I could probably do those parts for about $200. PM me if you're interested.

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  • JON-A-TRON commented on JON-A-TRON's instructable Off Grid Power Supply1 day ago
    Off Grid Power Supply

    I just updated the list with prices. It comes out to about $210 not counting wood and 3d print filament.

    Yeah, I love that idea. I think the design would be a bit different, but it would be good to know what the solar panel options would be and how many you would need to charge the battery in a reasonable amount of time.

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  • JON-A-TRON's instructable Thread ID Tool's weekly stats: 5 days ago
    • Thread ID Tool
      9,812 views
      134 favorites
      11 comments
  • JON-A-TRON commented on JON-A-TRON's instructable Thread ID Tool6 days ago
    Thread ID Tool

    Yep, you could definitely do it that way.

    Yeah, there's a wide variety of thread sizes out there. I just made one for the fasteners I use for everything- I go with course threads all the time.

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  • JON-A-TRON commented on JON-A-TRON's instructable Thread ID Tool11 days ago
    Thread ID Tool

    No, I just made one with the threads I use most often. Not a bad Idea though!

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  • JON-A-TRON commented on simplerandom's instructable Drill Powered Go Kart13 days ago
    Drill Powered Go Kart

    As NightHunter300 said below, you could have a reverse setting! Just make a c-shaped part on a post so it can swivel back and forth. The ends of the C push the reverse switch on either side with a brake cable, just like you did with the pedal.

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars19 days ago
    Blade Runner Binoculars

    It looks really good. I bought some of that Kydex stuff Adam Savage used in his video, going to give your version a try using that instead of craft foam.

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  • JON-A-TRON commented on JON-A-TRON's instructable Name That Keychain19 days ago
    Name That Keychain

    Yes indeed! It's been broken out into 3 separate classes:https://www.instructables.com/class/Beginner-3D-Printing-Class/https://www.instructables.com/class/Intermediate-3D-Printing-Class/https://www.instructables.com/class/Advanced-3D-Printing-Class/

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  • JON-A-TRON commented on JON-A-TRON's instructable Setup and Print19 days ago
    Setup and Print

    What's it for?

    Good solution to the hoop problem!

    Hm, maybe try Cura. 50mb shouldn't be too big a file.

    Those look good! What are they for?

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars20 days ago
    Blade Runner Binoculars

    I think this is the same model: Occer 10X42 High Power Monocular Telescope HD Dual Focus Scope, Waterproof Compact Monocular With BAK4 Multi-coated Zoom Lens, Low Night Vision for Hunting Bird Watching Camping Outdoor Sporting https://www.amazon.com/dp/B075NZ72FM/ref=cm_sw_r_cp_tai_CB0BAbC90VEVQThere are some subtle differences, but it look like it'll fit the design here.

    I think this one is the same model: https://www.facebook.com/60SecondDocs/videos/1896274727352016/You'll need to cut off the clip that holds the lens cap on the end, but I think it'll fit the model as it's designed here.

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  • JON-A-TRON commented on JON-A-TRON's instructable Name That Keychain22 days ago
    Name That Keychain

    Looks good, just keep in mind that you'll need support material to print this. More details about that in the next 3D printing class.

    Good work! The hoop is a bit large, you might have trouble getting it on a key ring.

    Looks good! That loop is going to need to be thicker if you want it to work as a keychain.

    Looks good!

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  • JON-A-TRON commented on JON-A-TRON's instructable Lesson 3: Drawing in 2D22 days ago
    Lesson 3: Drawing in 2D

    Try adding some detail. where are the ports? Does it have sharp edges or are the edges rounded?

    I'd say you're doing pretty good with them! They just take practice. The important part is that you understand how to use them and are able to control proportions, which you obviously do.

    Not bad! Imagine how you might show that curved end in the 3D drawing-

    Very good! Try using construction lines to control the geometry. When you look closely the back-right leg is distorted inward, the left armrest would show up past the chair back, and the front left leg would be visible. If you drew construction line cages around it, you'd be able to easily position these elements.

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  • JON-A-TRON commented on JON-A-TRON's instructable Lesson 4: Drawing in 3D22 days ago
    Lesson 4: Drawing in 3D

    That's actually pretty good. Try to pay more attention to proportions (the red ring on the top has a consistent thickness and it's wider than shown in the drawing). Also, construction lines will help even though it's curved.

    Remember, all the lines that are parallel on the object are parallel to each other on the drawing. The short edges, the long edges, etc.

    You're getting the line weight concept right, the weight is just too heavy for the size of the drawing. If you use a thinner pen to outline the spatial edges it will look cleaner.

    That's pretty good- very close to parallel and the proportions make sense. Try it again with the rounded edges and it'll be more realistic.

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  • JON-A-TRON commented on JON-A-TRON's instructable Light and Shadow22 days ago
    Light and Shadow

    Good start. Keep practicing with construction lines- if you get those right you'll get straight, parallel lines.

    Good start, give it a try with a cast shadow.

    This is really good! That's a complex thing to draw. If you go over it again applying line weight, this will be a very good drawing.

    Looks like you're getting there, but you should practice with straight, clean lines instead of sketchy lines. They're better for manmade objects.

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars25 days ago
    Blade Runner Binoculars

    It’s about 2 inches. If you print out the PDF layout of the acrylic files you’ll see exactly how big it is.

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  • JON-A-TRON commented on JON-A-TRON's instructable Flip-Top CNC Table27 days ago
    Flip-Top CNC Table

    That looks rigid as hell. What do you mean by "webbing"? I'm not familiar with how you're using that word here.

    Thanks man! It does the trick for what I need to do, but if I were to do it over again I might use hardwood and a steel frame.

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  • JON-A-TRON commented on JON-A-TRON's instructable Flip-Top CNC Table4 weeks ago
    Flip-Top CNC Table

    You could, but depending on how you’re fixturing and how big your piece is, that can be really difficult. It would only really be okay with small pieces fixtures close to the open ends.

    Also, for a vacuum system has to have a hose coming down from above to avoid snags.

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  • JON-A-TRON commented on JON-A-TRON's instructable Flip-Top CNC Table4 weeks ago
    Flip-Top CNC Table

    Haha! That's an instructable waiting to happen.

    That's what you get for living in New York, city boy...

    Thanks for pointing that out, I’ll fix it!

    Dude! I was born in the wrong decade- Shopbot at high school! The space for the Shapeoko is about 46”x 60” I think, would have to measure it again. If you need help resizing let me know.

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  • JON-A-TRON commented on JON-A-TRON's instructable Flip-Top CNC Table4 weeks ago
    Flip-Top CNC Table

    It does a lot of things.

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  • JON-A-TRON commented on JON-A-TRON's instructable Ratchet Strap Chair4 weeks ago
    Ratchet Strap Chair

    Nice bench! This particular design is too complex for a dimensioned layout, but you can print the PDF layouts at full scale at any print shop that does large format printing and use the technique I describe in this Instructable: https://www.instructables.com/id/Digital-Fabricati...All you need is a drill and a jigsaw.

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  • JON-A-TRON commented on JON-A-TRON's instructable Flip-Top CNC Table4 weeks ago
    Flip-Top CNC Table

    Awesome! Let me know if you have any questions about it.

    How about you table-saw me a bunch of shelves in exchange. Hadn't thought of a piano dolly, good thinking!

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars4 weeks ago
    Blade Runner Binoculars

    That's an automated response when an instructable doesn't have multiple steps. The Community Management team caught it and published it right away. Thanks for sharing it!

    Yeah, it's hardly a one-day project!

    REVISED MODEL BY EMPRICUS! He was kind enough to post a one-step instructable and share the revised files (based on Adam Savage's build) with us all. https://www.instructables.com/id/Blade-Runner-Optical-Viewer-Remix/

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  • JON-A-TRON commented on Empiricus's instructable Blade Runner Optical Viewer Remix4 weeks ago
    Blade Runner Optical Viewer Remix

    Awesome! Stoked that you took the time to provide the files here. Would you be willing to post your Fusion 360 archive file as well?

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars5 weeks ago
    Blade Runner Binoculars

    Yea, I used a laser cutter for the llenses. If you don't have access to one you could use the PDF template and score the outline with a hobby knife, then score and break straight lines around the curves and grind down what's left with a file until you get a smooth curve (that's how it's done with stained glass , for example.

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars5 weeks ago
    Blade Runner Binoculars

    Dude! Awesome work! It looks better than mine, nice weathering. Did you do that watered down acrylic technique that Adam did in the video?

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars5 weeks ago
    Blade Runner Binoculars

    I'd love to see that.

    Thanks! I mirrored it because my right eye is dominant and I wanted to be able to actually use them.

    Yeah, look at that!

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  • JON-A-TRON commented on Ryo Kosaka's instructable Bending Plywood With 3D Printer5 weeks ago
    Bending Plywood With 3D Printer

    Dude, this is amazing. I'm very impressed. Definitely trying this soon, I've always wanted to make a bent plywood chair without kerf cutting.

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars5 weeks ago
    Blade Runner Binoculars

    I just did the math, and I think I could sell kits for around $250. The print alone is 40 hours with almost a whole spool of filament (about $30); the laser cutting is pretty quick but the acrylic is about another $4; the monocular is $15; the hardware comes out to about $3; the strap, foam, and rivets are another $2. Materials come to about $54, machine time comes to about $34, and there's about 4 hours of labor involved if I'm being generous. If you or anyone you know is still interested, please give me a shout and I'll set up a product on my online store and post a link here.

    awesome! Looks spot-on to me. You could make a quick Instructable (just one lesson) and link to that here, that way you could add stls, the fusion file, images, and any process info you might have.

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars6 weeks ago
    Blade Runner Binoculars

    I think I can make it happen from just watching the video, don't want to bug him too much!

    Laser cutters are expensive. Engravers are super cheap. Any of these would do the engraving work: https://www.gearbest.com/3d-printers-3d-printer-kits-c_11399/type~-~3d_3d~laser/

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  • JON-A-TRON commented on JON-A-TRON's instructable Blade Runner Binoculars6 weeks ago
    Blade Runner Binoculars

    That's not a bad idea. The parts take a while to print, but they assemble very easily once they're done. Let me do an estimate and see what I could do it for.

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