Casting hollow shells from a mould

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logisticpeach	logisticpeach posted 12 Years Ago HOT Topic Details
Group: Awaiting Activation Posts: 1, Visits: 6	Hi, I'm looking for some advice to point me in the right direction in terms of materials and techniques for a project I'm working on. In a nutshell, I need to take a positive impression of the inner-ear, create a mould and then cast a solid shell from the mould (think of a hearing-aid shell) into which electronics will be placed later. I have seen some discussion online around this topic whereby acrylic resin is allowed to partially cure, solidifying from the outside toward the centre and therefore creating a "shell" of the mould. My question is: give that I have no background in composites, plastics or materials science, how might this be achieved, and what materials/tools would be needed? Thanks in advance! Kenny
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Brian_s	Brian_s posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 99, Visits: 2.5K	This may help. http://www.youtube.com/watch?v=jmsbUZPUvJY You will then need to make a mould from this to cast your finished object. If you use a silicon putty as in the video you may find that Silicon moulding material will stick to it. Perhaps someone from easy composites can confirm this? I am not sure if a hard resin will fit back in your ear comfortably. You may need something that flexes. Brian.
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logisticpeach - 12 Years Ago

Warren (Staff) - 12 Years Ago

I would say exactly the same as Warren... But the problem that remains is that I wouldn't like...

matthieutje65 - 12 Years Ago

Brian_s - 12 Years Ago

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