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Mold with Inner Structure

PostPosted: Thu Dec 22, 2016 3:17 pm
by Captasty

I am looking to cast a 3D print I will be making soon. It is a square shape with an inner cross shape. Think a cube with a hole in each side going all the way through to the other side. I am very green in molding and cannot quite determine the best way to make a cast of it.

I just don't see how to remove the model once cast because the cross shape locks it in.

Thank you

Re: Mold with Inner Structure

PostPosted: Mon Dec 26, 2016 11:00 pm
by Gadzooks
Lots of things are printable but not cast able

Would need to see some pics to really determine

Re: Mold with Inner Structure

PostPosted: Wed Dec 28, 2016 7:44 am
by Captasty
Here is a link to two photos of the rough structure. This will be most likely be a rubber like material. Poles will be inserted into the holes, so a 2 part mold that is glued would most likely not be strong enough.

Thank you.

Re: Mold with Inner Structure

PostPosted: Tue Jan 03, 2017 9:56 pm
by Fleafa
Whilst that is castable, it would require a complex mould. I wouldn't even attempt it, personally.

Re: Mold with Inner Structure

PostPosted: Fri Jan 20, 2017 2:49 am
by Strawman
would it be possible for you to print the piece in two halves, and then just fit them together after? That would be much easier to cast.

Re: Mold with Inner Structure

PostPosted: Fri May 19, 2017 6:56 pm
by Blindhorizon
Get a sharp blade and bend the mold back once you cut to the square and run the blade through the connecting piece that locks it in. 1 clean cut and the piece should come back together and kit cause many issues casting. I have cast plenty of items that get locked into molds.

What type of mold are you considering for this? 1 part of 2 part mold?

Edit: I saw the second imag fleafa is 100% correct that would be a butch of a mold, the other guys idea of cutting it in half and making molds of that would be way easier.