I'm building a 1/48 scale PT boat. Cowl vents are the metal vents that allow air to flow down into the lower parts of the boat or ship. I would like to have these hollowed out so that they appear more realistic. The kit came with cast metal cast cowl vents and trying to hollow those out was hopeless. The metal is too soft.
What I've tried is to cast the cowl tops in resin, drill up through the base until I break through, then shape the concave part of the vent. That worked, but I think I'm still a ways from where I would like to be. For one thing I'm having trouble coming up with a good method for shaping the inside of the cowl vent to get it thin enough to where I think I'd be happy with it.
I hope this makes sense. If anyone has any ideas on this subject I'd be greatful.
Thanks all
Dave