Talk Composites - The Forum for Advanced Composites

Race seat mould with undercut's - Help needed!

http://www.talkcomposites.com/Topic8695.aspx

By nmicro - 12/5/2013 1:31:35 PM

I'm struggling to get a good mould from a race seat that i have, and I'm hoping you can give me some advice and help.

This race seat is an infuse carbon part, but it has some metal insert on booth sides, to fix it to the car, making it impossible to make a "direct" mould of it.
I believe that this metal parts are glued with some epoxy glue, so it's literally impossible to remove them.

The metal plates have around 2 ~ 2,5mm thickness and the "bolt" has around 4,5 mm.
As you can see from the pictures below, this metal parts create some undercuts and i'm not sure how can i overcome them.

The "bended" effect of the seat surroundings makes is harder to solve it.


Any help will be appreciated 

Here's some photos so you see what i'm talking about.

http://www.talkcomposites.com/Uploads/Images/d864b051-ce82-451f-a63e-46d9.jpg

http://www.talkcomposites.com/Uploads/Images/c1ef4540-932c-4175-930e-3418.jpg

http://www.talkcomposites.com/Uploads/Images/127330ed-d45a-4498-bef6-3e47.jpg

http://www.talkcomposites.com/Uploads/Images/94b8ad14-c01e-4a1c-a70e-7c0b.jpg
By FLD - 2/4/2014 8:21:11 AM

My plan was to take a mould from it.  I would mould from the inside though.  The problem with this seat is that it had been deformed (the sides had been pulled in which would mean a mechanical lock).  I cut a bit out and straightened it up, hence all the filler and made it fit the subframes for my car (VX220).  My level of arsedness has wained slightly so its still as you see it in that picture.

WRT the lip round the edge I had planned on thickening it slightly but given that I'd mould from the inside it'd be fairly straightforward in my eyes.