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Dangerous Popsicles from Pier 9 on Vimeo.

Have you ever licked a cactus? Probably not. But it might be interesting to try it out, in another form. Time to create some special sensations for our tongues! In this instructable I'll make a cactus-inspired popsicle and demonstrate the two-part silicone casting process.

Here's an instructable that introduces you to mold making basics. Making a two-part mold has versatile applications and is beginner friendly. Here I used a combination of one-part and two-part mold-making techniques.

Step 1: Model & 3D Print the Original

I modeled the cactus shape in Rhino, exported as .stl file, and got it printed on an Objet 3d printer. If you don't have access to a 3d printer, you can always use online 3d printing services like Shapeways and Materialise.

As you can see the model is very symmetrical, with a clear front and back (where the spikes are). So for our two-part mold the parting line will be the center line between the front and the back. If you're working with a more complex geometry, try to mark your parting line so that it avoids delicate details. Note that the parting line doesn't need to be on a flat plane.

This is very cool. Is there a way to make it without a 3D printer.
<p>Great work! Could you share a stl files made with Rhino?</p>
<p>Just uploaded the .stl file. Enjoy! :)</p>
Just saw this! It is amazing! Where can I find these files?
<p>Thanks for the interest! I'm sorry to say that the original 3d files are not open to the public. Please understand that as working artists we sometimes can't share everything in the process. But you can always make your own 3d models of course.</p>
Amazing !!! Just give us your 3D files please
<p>Ooooh! Where can I download the .stl file? Our local children's museum can print these- I'd love to use them in an infectious disease series after the holidays.</p>
<p>i like cacti</p>
<p>Excellent project! Do these sit ready to eat in the test kitchen? nom.</p>
<p>They are not so ready yet! But soon will be. Stay tuned. :)</p>
<p>Wonderful! and master mould making techniques!!</p><p>Check this project we made last year at ABADIR art academy in sicily!</p><p><a href="http://living.corriere.it/lifestyle/design/2014/abadir-forme-acqua-sicilia-402156759004.shtml#center" rel="nofollow">http://living.corriere.it/lifestyle/design/2014/ab...</a> </p><p>Bye!</p>
<p>Wonderful project! Thanks for sharing.</p>
<p>Excellent job! The shapes and colors are amazing!</p>
<p>Print some molds instead!</p>
<p>Worth a try, but most 3d printer plastics are not so good with food, and leaks would be a problem...</p>
<p>Yes if you can print in food safe rubber materials that'll make the whole thing much easier :)</p>
What about inverting the design and then placing that into a square
<p>I can't believe how delicious these look. Good thing I don't work in a bio lab.</p>
<p>Wow, those are gorgeous!</p>
<p>Now that makes sense what was the reason to polish a 3D print ;) Great job! looks awesome!</p>
<p>That would make a perfect treat for Halloween ! </p><p>Well done ! :)</p>
<p>YAY! Look at all those. You were busy while I was in NY. :D</p><p>They're so beautiful!!</p>
<p>That's so fun! I love technology and popsicles, what a great combo!</p>
<p>Nice job, &quot;hands to guest saying; Bite into it, you'll be fine!&quot;</p><p>Awesome idea!</p>
.....woah. Just .......woah.
<p>Very impressive! Those shots in the last step are great.</p>

About This Instructable

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Bio: Wei Li is an artist and designer that currently lives and works in San Francisco. Li uses her work to explore fantasies and desires with ... More »
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