Technical, Techniques, Hints, and Tips > Engineering Techniques and Materials.

Poor Quality Vac-forms?

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Plastic - RIP:
 What is the correct way to deal with poor quality vac-forms?

These look like the material was not hot enough to draw into the corners properly or the vacuum pump wasn’t sucking hard enough.
Sending them back is not an option (2nd hand model) so any ideas to make them better?
The huge corner radius and poor definition mean these are next to useless – so what’s to be done?
If they are cut to a good edge, the parts will be miles apart – but if cut to size, they will look like a potato.

Is this ‘normal’?
Is this just a typical ‘challenge’ of building expensive models?
 

Colin Bishop:
They look a bit beyond redemption really but you could try salvaging the hulls and then using the upperworks as a rough pattern for reconstructing in styrene sheet. They don't look too complicated.

Colin

Plastic - RIP:
The hulls are no use - the plastic didn't suck down fully at the bow end so they are not full depth.

Is this normal for vac-forms included in kits?

It seems to show indifference to quality.

Colin Bishop:
It's not unusual I'm afraid. Still might be worth contacting the manufacturer for a replacement on a goodwill basis. Otherwise you will just have to scratch build the replacements.

Colin

Martin (Admin):

Is the kit still in production?
Purchase replacement?

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