Simple Marble Run v1.0.5

This is my first attempt at creating my own SVGs. I drew them in markup (text) and tested them in Chrome. Then I used Tinkercad to virtually put them together. I used Inkscape to put them together (like Tetris) in a single SVG for uploading to Glowforge.

I used https://geargenerator.com/ to draw the outer lines for the gear SVGs. I then modified them to my needs.

This was a fun process and I learned a lot. I am a web developer, so writing the SVG in markup was easier since I am used to writing in that language. Once I work out a few more kinks, I hope to upload the SVG, but it would need instructions for putting it together (otherwise it is a crazy puzzle).

I was able to fit it all on a single 12"x20" proofgrade draftboard. It is all pressure fit together (no glue, yet) plus two (2) machine screws (#8-32) and three (3) machine screw nuts and four (4) washers (spacing the wheel axel).

I used 1/2" chrome steel ball bearings.

I might try to replace the wheel-axel screw with a printed axel in a later revision to reduce the need for extra hardware. But, I think the screw in the crank handle is still the best implementation due to the stress of turning the crank.

Thoughts or suggestions?

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That looks really awesome. Well done.

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Neat contraption! Can you explain what you mean when you said

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I think he wrote SVG in a text editor and opened it in Chrome to make sure it looked right.

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Wow, you designed these SVG files by hand? Very impressive indeed!

And what an awesome marble machine!

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Boggles the mind you designed this in markup! Well done!

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Incredible! Props to you, sir!

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You are correct. I wrote the SVGs in a text editor. I used some graph paper to draw out some of the structures to make it easier to calculate some of the point coordinates. And used Chrome to test out the results.

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Tinkercad (https://www.tinkercad.com/) really helped me envision and test the pieces together before I printed it (so I wasted less material).

I found several issues when I tried to assemble it here and made several adjustments. It is a really cool free web application (but it had a bit of a learning curve to get used to it.)

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Nice work. Making a marble run is definitely on my list. I already bought a motor for the one @m_raynsford has designed. Just need to pick a size and order some ball bearings.

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I don’t think I have seen his. Do you have a link?

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He has them scattered everywhere!

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I’m impressed. Lots of work and thought figuring these things out, I’m sure. Very cool indeed.

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My son helped me get a video of it working.

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Thanks for sharing this link! I have seen the wheel method (obviously, I used it), and the stair-climber. But, I really like his elevator contraption and his mini one!

I think I should play around with smaller ball bearings too, I think that could make many designs easier.

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wow! great work!

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I am impressed that you got this down to a single sheet of proof grade material. Very nice project too. :smiley:

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Here is the SVG if anyone else wants to try to create it!

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That is really cool! I love machines created on the Glowforge.

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This is a great design. I need to learn tinkercad or some cad software.

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