Split mould necessary?

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Split mould necessary?

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Hanaldo	Hanaldo posted 11 Years Ago HOT Topic Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Hey all, Was hoping for some feedback on a part I'm building at the moment, little bit unsure how to go about it. It's a roof panel for a Lotus Exige Sport 240, which I have been repairing and modifying over the last week. My issue is that the roof has a scoop in it, which is used to supply air to the supercharger at the back of the car. This scoop unfortunately gives me an undercut on the front, and I'm not sure if I can get away with doing the mould in one piece, or if I'm gonna have to do a split mould. I sort of think I might be able to get it out from the back, but I'm not sure. What do you think: This is the front of the roof: This is the back: Now the back I can flange around that undercut and that's fine, but it does have a rolled edge that I will need to copy, and I'm worried that this is what will stop me from releasing the mould from the back: Edited 11 Years Ago by Hanaldo
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Hanaldo	Hanaldo posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Gotchya. That was one way I thought of doing it, the other was to do the split line on the front edge, following the edge of the scoop. So essentially doing the lip as a separate piece, eliminating that undercut. I would then have a split line along the lip edge though, which wouldn't be too hard to sand off but obviously more work than if it were on the back edge. So do you think that doing it along the back edge will allow me to release the part? I was still a bit worried that the undercut at the front would lock me in enough to not allow release, even if I didn't have that rolled edge at the back. Shouldn't be an issue?
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