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Self articulating Arm

by divreig Nov 25, 2017
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Thing Apps Enabled

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Hi mate great design, just wondering how am i go about to learn how to design a tighten knob with those groves similar to this design.. I am new to CAD and had no idea to learn how to do this or is there any tutorial on youtube to learn this method. Thanks

Thank you. Threads can be pretty complicated depends on the cad package you're using. I'm using SketchUp so there are some plugins that I use for threading. Otherwise it's quite difficult in SketchUp. But in this case a better person to ask is IgorF42 . As of mostly used his design including the threads. I imported the STL into Microsoft 3D Builder and cut Parts I need it.

Sorry i dont mean the threads but the little goves lines to keep the arms in place from slipping.

Lol, that's embarrassing, I totally missed that . You are very clearly not asking about threats.

But back to the your actual question. Turns out the answer still the same, I copied Igor F2. A used Microsoft 3D Builder a small section with grooves. Then use those two subtract out for bumps.

But if you want to know how to make a shape like that really depends on what CAD software you're using. And I have not seen a tutorial specifically for something like that. But in general if you want to make a shape like that I would extruder out a vertical cross section and the domes ends , then stretch if needed. But again that's just one way that's convenient with SketchUp. But again highly dependent on the software you're using

Great design. I did notice that the threads on the wall joint are thicker than the ones on the arm making the wall joint less flimsy. Maybe the treads on the wall joint could be grafted onto the arm so all of the threaded parts are all the same. Also, make a new version of the arm stretching the length to 140mm.

Again, this is a really great design.

Thank you. I'll take a look at it. I don't know if I can make the arm screws any thicker because of the spring and press plate mechanism. But I'll definitely take a crack at it when I get some time. Also making the overall length 140 shouldn't be much of an issue.

Thank you. Literally couldn't have done it without you.

Hi there! I've published some new features for the lamp, and submited a tutorial on how to make the lamp on Instructables: https://www.instructables.com/id/Articulating-LED-Lamp-REMIXED/

It's competing on Instructables Remix Contest, and it would be great if I'd have your vote.
You can find the "vote" button in the end of the tutorial, or you can search my entry on the page of the contest:

Thanks for your help! :)