I'm preparing (my first) mould to make a door panel and I'm undecided on how to prepare the inside corners of the return flanges (that become the outer edges on the part) before starting to lay up.
Do I leave them sharp, or make a 4 mm fillet with plastacine?
Considerations -
If I leave them sharp:
The gel coat sharp edges on the part will be liable to chip. - I would give them a say 2 mm radius by sanding? Hopefully not breaking through the gel coat.
Difficult to get mat into the corners when laying up.
3 mm panel gaps will look better with sharper panel edges?
With 4 mm radius fillet:
Takes time to make the fillet
Easier to lay-up
4 mm will become say 5 mm once sanded smooth if necessary to even the edge out?
So which is better/easier? The parts will be painted - eventually.
Cheers
Fred W B
Do I leave them sharp, or make a 4 mm fillet with plastacine?
Considerations -
If I leave them sharp:
The gel coat sharp edges on the part will be liable to chip. - I would give them a say 2 mm radius by sanding? Hopefully not breaking through the gel coat.
Difficult to get mat into the corners when laying up.
3 mm panel gaps will look better with sharper panel edges?
With 4 mm radius fillet:
Takes time to make the fillet
Easier to lay-up
4 mm will become say 5 mm once sanded smooth if necessary to even the edge out?
So which is better/easier? The parts will be painted - eventually.
Cheers
Fred W B