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Old 05-24-2022, 05:04 PM
akschu's Avatar
akschu akschu is offline
Join Date: May 2008
Location: Wenatchee
Posts: 412
Default Trying to figure out how to make parts from 3D printed mold.

Hello All,

I need to make a blister for a servo mount (not an rv) and I was able to completely design the blister in fusion 360 and print it for test fitting.

Now I want to make a fiberglass part but looking for information is returning a sea of information and I'm just more confused wading through it.

I know many here have gone before me, so perhaps some answers to questions will get me pointed in the right direction:

1. When you make a fiberglass part is it better to make a mold to lay the fiberglass in to, or can you print the part and just lay glass over the top of it?

2. If using a mold, what do I need to finish it smooth so that I can release it? Body filler? Build up primer? Links to specific materials and products would be great.

3. What do I need for mold release? I get that my mold needs to break apart, which is easy, but don't I need a release agent, or wax? More links please!

4. For the actual fiberglass, how many layers should I use for a blister? 2? 3? What products do I use for the fabric, and resin?

I could really use a link to a good primer, or a post saying you need this and this and this which are used to do that, and here is the overview to making a part.

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Old 05-24-2022, 05:40 PM
TASEsq TASEsq is offline
Join Date: Aug 2017
Location: Melbourne, Australia
Posts: 452

Check out Ramy RC on you tube.

He designs RC aeroplanes know 3d, prints a reverse mold, paints and tidies it up, then does layups into the printed molds.

Might be what you are after.
Trent Stewart
Melbourne, Australia
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Old 05-24-2022, 09:09 PM
David Paule David Paule is offline
Join Date: Dec 2009
Location: Boulder, CO
Posts: 5,363

DanH has a lot of useful information about fiberglass on VAF.

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