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Plastic injection moulding - or something like that

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squizy Thinking about another dub...maybe

4,082 posts · joined Dec 2002 ·

#604005
I've got something that I've made out of cardboard that I want someone to make out of plastic. Does any in Sydney know of a place that does this. Because it will be a prototype, I believe there will be some initial cost layout up front. Any guidance that anyone has got would be appreciated.

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#604010
Hi

That could be expensive, you might be better off with fibreglass.

Steve

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#604017
Injection molding involes a great expense and you wouldnt do a mould unless your going to many millions of the item

Go with the fibreglass as per Steve as the mould will be cheaper

OK so whats the item is it VW related or ???
I read it on FACEBOOK so it must be true


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Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#604022
What about polyurethene.

We use liquid to make elbow insulation for the preinsulated pipes.

You would make up a mould, just like fibreglass. But this could be solid as opposed to the hollow of fibreglass
Futue te ipsum!!!

baybuscamperkid prince of insufficient light, ruler of heck

4,316 posts · joined Aug 2002 ·

#604043
show us some pics of what you are upto, I know of a number of DIY options that may be suitable, just depends on what you are making.
Reimagined/Recycled/Upcycled Cool

squizy Thinking about another dub...maybe

4,082 posts · joined Dec 2002 ·

#604044
vw54 wrote:Injection molding involes a great expense and you wouldnt do a mould unless your going to many millions of the item

Go with the fibreglass as per Steve as the mould will be cheaper

OK so whats the item is it VW related or ???
Dave - not VW related, but yes to the millions question.

squizy Thinking about another dub...maybe

4,082 posts · joined Dec 2002 ·

#604045
It's only really small - about 2 1/2 inches. Barry I may have to come around and show you and kick around some ideas. Sorry no pics - can't let the secret out.

HotRodMatt If it\'s old or rare - cut it!

3,616 posts · joined Sep 2002 ·

#604052
Squiz,

I have a friend that makes little 'Johnny Walker' figures as bottle corks and the like. He casts them in resin or metal. He also does one offs or thousands.

PM me with some detail: size, narrowest points etc (whatever you can without letting the cat out of the bag) and I'll talk to Steve on the weekend.

baybuscamperkid prince of insufficient light, ruler of heck

4,316 posts · joined Aug 2002 ·

#604054
if it can be solid and you can seal your cardboard prototype or make a well sealed prototype you can buy rubber compounds that you can make a 2 part mould from to pour resins or other compounts to pour light metals, I have a 4 page car magazine artical on doing it for hood ornaments if your interested
Reimagined/Recycled/Upcycled Cool