Quote Originally Posted by fred_dot_u View Post
It's common in high-strength DIY applications to create the model you wish via 3D printing, disregarding the strength requirement. This model is then post-processed to remove layer lines (if so desired) and support material surface irregularities. The next step is to create a silicone mold from the positive model.

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Thanks for your reply. What would be the purpose of doing the prototype via 3D printing in this case, if the final product will be done by other means (i.e. using a silicone mold)? Couldn't I just use the original plastic of the bike to create the mold?

I was mainly curious to see if only 3D printing could be used to make the actual final product, without the need for creating a mold. Interesting about the silicone molds though, I will do some more research on this.