vibrating balls toy - silicone molding form

by south, published

vibrating balls toy - silicone molding form by south Dec 14, 2016


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This is a molding form generator for the "vibrating balls" siicone toy.

You can adjust the size of the balls, the height and radius of the base and some more parameters. Use tinkering wire to fasten both parts together. Then you can pour silicone in and wait until it is solid. Then remove the tinkering wire and carefully open the form.

For more information see http://www.bodyinteraction.com
Deatiled building instructions: https://bodyinteraction.com/2016/12/14/openscad-as-silicone-molding-form-generator/

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XYZ printer daVinci 1.0

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I know I commented on another of your models but forgot to respond to your own questions.
To get a better finish to the final toy, brush the inside of the mold with acetone, that'll help smooth out the ridges made by the printer. You'll get a nice shiny finish.
https://goo.gl/photos/bt3ApHH2EFvS4trT6 (Shows with and without smoothing.)
One method to help prevent silicon from oozing bewteen the molds is to sand the matching surfaces. I found a sheet of 600 grit sandpaper on something like glass or other very flat surface does a good job. I makemy molds much more solid so I can clamp them. In your case if you move the holles closer to the edges of the form and use small bolts that might also work and use a lot less plastic, at the cost of more time.
Here are some more pictures. https://goo.gl/photos/QeSPV3tGNw1MyUzH6

And finally, yes, you really do need to get a vacuum chamber. You can get finished kits from ebay and places like that, or just get the pump and cut an acrylic or polycarbonate lid for a big cooking pot. Look on youtube for videos of how to make them.

Oh.. And in a few weeks time I should have something very interesting to make toys. Search for 'roto casting' or 'rotor molding' and look out for an upcoming 'thing'. :)