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DIY Plastic
tks - 27/9/07 at 08:47 AM

Is there any product out there sow that one can make a mold and cast some plastic bits?

Tks


GeoffT - 27/9/07 at 08:59 AM

This stuff:-

http://www.maplin.co.uk/Module.aspx?ModuleNo=35511&TabID=1&source=2&doy=8m1

....is reckoned to be pretty good, only up to 62C though


Bigheppy - 27/9/07 at 09:04 AM

Lots of the same stuff on ebay
http://cgi.ebay.co.uk/Polymorph-Thermoplastic-Moulding-Compound-250g_W0QQitemZ220137682992QQihZ012QQcategoryZ75576QQrdZ1QQssPageNameZWD1VQQcmdZViewIte m


tks - 27/9/07 at 09:06 AM

would it be cast-able?

62degrees = far enough...

Tks


Peteff - 27/9/07 at 09:07 AM

Morph-Plast is moldable plastic, I've made knobs and buttons with it. There are also modelling clays like Fimo and Sculpy that you bake in the oven after you've shaped them. Faber make Fimo so it should be pretty widely available. It depends how big the parts are that you want to make.


BenB - 27/9/07 at 09:07 AM

If you go onto the CFS website they've got various casting resins and mould making solutions

http://www.cfsnet.co.uk/


tks - 27/9/07 at 09:12 AM

i want to make some kind of PDA kind housing.
to put in a 2x16char display in and a small print. Sow ideally its some kind of thing wich i later can drill put 4 screws in the body and job done

Tks


tks - 27/9/07 at 09:16 AM

brought 2 times the ebay item,

we shall see hope they want to ship it to me!

Tks


smart51 - 27/9/07 at 09:28 AM

Polymorph turns into a plasticine type dough at 62° and can be mouled by hand but not poured. Polyester casting resin (resin C) can be poured into a mould. fibreglass suppliers will sell it.


tks - 27/9/07 at 09:33 AM

You are right, but i don't have any type of mould yet. also he didn't sold it me yet.


Tks


ditchlewis - 27/9/07 at 09:39 AM

I think that you want to use Resin.

In the model world the cost of tooling up for a injected plastic kit is huge. small manufacturers use resin as a low cost alternative. make a copy of what you want in say balsa (easy to use) and than use a rubber compound to make the mould and then cast the final shape in resin

ditch


BenB - 27/9/07 at 11:55 AM

You might want to look @

http://www.resincasting.co.uk/

for stuff about mould making and resin casting. CFS might not be the cheapest suppliers but they do good delivery times and they've got the stuff in stock!!


BenB - 27/9/07 at 12:09 PM

Also

http://www.cfsnet.co.uk/Web_FibreglassGuide.pdf

gives some info re casting various objects....