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Old Jun 02, 2013, 12:13 PM
Registered User
Joined Jul 2005
507 Posts
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Vacuum forming Micro parts

Hi,

I built a vacuum former from and have had success with thin document wallet plastic but it's too thin to make the parts I need.

I ordered this from ebay , it's plasticard



http://www.ebay.co.uk/itm/2008771042...84.m1497.l2649

I can't seem to get it to mold well , I have had it in a 210 degree oven for 2 minutes and I'm sure this would be long enough, anyone have any experience , is it even suitable?

It molds but doesn't pick up the detail , maybe it's just not getting hot enough.
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Old Jun 02, 2013, 02:12 PM
DynamicFoamy's Avatar
Ohio
Joined Nov 2007
225 Posts
The plastic should start to sag when it is at the correct temp. You must position and start vacuum very quickly without delay. If you are lacking detail my guess is you do not have enough vacuum pressure and temp is off. Are you using a shop vac as a vacuum?

Bert
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Old Jun 02, 2013, 03:11 PM
Registered User
Joined Jul 2005
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Hi,

Thanks for advice, I have the vacuum on when I put the plastic over the mold, It's a dyson vac and it's really powerfull (it actually pulled the plywood lid into the box and snapped it in hald when I covered the holes with my hand)

So I think its the temp, I have seen it sag but don't think I am getting it hot enough , guess I will have to give it another 30 secs.
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Old Jun 02, 2013, 05:10 PM
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Gunbarrel, CO
Joined Dec 2006
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Could it be the thickness? It seems like 1/4 mm is fairly thick.
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Old Jun 03, 2013, 02:04 PM
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Joined Jul 2005
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Hi,

not sure 1/4mm is the thinnest I couls find , maybe it is too thick
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