"A.P." wrote in message
...
Do anyone here know a site that explain how to
"Make your own plastic parts" ?

I am thinking aboat the prosess innvolving:

Hyraulic pressure.
Plastic granulat heater.
Alu molds whit built inn heaters and cooling channels


reg
Axel
Norway

It appears that you want to injection-mold with thermoplastics, which is not
a trivial thing to do on a small scale. There are small tryout presses and
simple presses made for educational use in schools, but they aren't
production machines.

Much small-scale plastic work is done with room-termperature-cure
thermosetting plastics (polyester resin, epoxy resin, vinylester resin,
polyurethane resin), which are a lot easier to work with. Working with them
also is a lot slower, and the materials are MUCH more expensive, however.
But they generally have better mechanical and physical properties. They are
used a lot for prototypes of parts that will be injection-molded in
production.

But building a machine and molds that will give you the heat and pressure
needed to injection-mold thermoplastics is a big job, or an expensive job,
or both.

What kind of plastic parts are you trying to make, and in what quantities?

--
Ed Huntress

A.P. wrote:
Do anyone here know a site that explain how to
"Make your own plastic parts" ?

I am thinking aboat the prosess innvolving:

Hyraulic pressure.
Plastic granulat heater.
Alu molds whit built inn heaters and cooling channels


reg
Axel
Norway



For the home designer a thermoset, room-temperature cure plastic would
be far easier than a thermoplastic. Just about any catalyzed plastic
could be mixed and poured into a plastic mold without having to build an
injection molding machine.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

see http://www.lindsaybks.com/dgjp/djgbk/inject/index.html

Gingry plans are in inches, but this shold be no problem.

I have this book but have not yet built the machine.

GmcD


On Sat, 22 Oct 2005 13:00:43 -0400, "Ed Huntress"
wrote:

"A.P." wrote in message
...
Do anyone here know a site that explain how to
"Make your own plastic parts" ?

I am thinking aboat the prosess innvolving:

Hyraulic pressure.
Plastic granulat heater.
Alu molds whit built inn heaters and cooling channels


reg
Axel
Norway

It appears that you want to injection-mold with thermoplastics, which is not
a trivial thing to do on a small scale. There are small tryout presses and
simple presses made for educational use in schools, but they aren't
production machines.

Much small-scale plastic work is done with room-termperature-cure
thermosetting plastics (polyester resin, epoxy resin, vinylester resin,
polyurethane resin), which are a lot easier to work with. Working with them
also is a lot slower, and the materials are MUCH more expensive, however.
But they generally have better mechanical and physical properties. They are
used a lot for prototypes of parts that will be injection-molded in
production.

But building a machine and molds that will give you the heat and pressure
needed to injection-mold thermoplastics is a big job, or an expensive job,
or both.

What kind of plastic parts are you trying to make, and in what quantities?

Do anyone here know a site that explain how to
"Make your own plastic parts" ?

I am thinking aboat the prosess innvolving:

Hyraulic pressure.
Plastic granulat heater.
Alu molds whit built inn heaters and cooling channels


reg
Axel
Norway

--What he said. For onesy-twosy stuff I'd recommend Alumilite,
which can be had at hobby shops and craft stores.

--
"Steamboat Ed" Haas : When does Inuyasha get
Hacking the Trailing Edge! : to bone Kagome??
http://www.nmpproducts.com/intro.htm
---Decks a-wash in a sea of words---

"F. George McDuffee" wrote in message
...
see http://www.lindsaybks.com/dgjp/djgbk/inject/index.html

Gingry plans are in inches, but this shold be no problem.

I have this book but have not yet built the machine.

GmcD

I looked at the book a while back. If you want to build a machine, it looks
like a good, engaging project. If you want to make fewer than, say, 1,000
plastic parts, it looks like a good way to waste time preparing to make
marginal parts.

I'm not knocking it. Building machines is fun, if that's the object.

--
Ed Huntress