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Engineering Materials
Slideshow: Watch Out, Hobbyist 3D Printing Ė Here Comes DIY Injection Molding
6/6/2013

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A $1,500 hand-operated, bench-model plastic injection machine funded via Kickstarter can be used to mold small, quality, plastic parts inexpensively, on demand. Shown here is the prototype with the basic manual (screw tightening) mold vise that comes standard with the machine, for prototyping or lower-volume production.  (Source: LNS Technologies)
A $1,500 hand-operated, bench-model plastic injection machine funded via Kickstarter can be used to mold small, quality, plastic parts inexpensively, on demand. Shown here is the prototype with the basic manual (screw tightening) mold vise that comes standard with the machine, for prototyping or lower-volume production.
(Source: LNS Technologies)

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EricMJones
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Morgan Plastic Molding
EricMJones   6/7/2013 8:35:29 AM
Since 1968 Morgan Plastic has made handy little presses for engineers and small manufacturers. See: http://www.morganindustriesinc.com/ You can buy them on the used market for little money. For years we used parts from these presses when large production was impossible.

Charles Murray
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Re: DIY Injection Molding
Charles Murray   6/6/2013 7:17:16 PM
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Great story, Ann. I really like the slideshow. Better quality parts than 3D printing and lower cost -- what's not to like?

Charles Murray
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Re: Its actually nostalgic
Charles Murray   6/6/2013 7:11:29 PM
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Yes, JimT, I remember both of those presses. At my local zoo, I believe they made plastic hippos. I also remember the coin press.

Ann R. Thryft
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Re: DIY Injection Molding
Ann R. Thryft   6/6/2013 5:02:14 PM
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Thanks, Al. This made me think of a Gadget Freak article in reverse: what would happen if one of our many innovative, creative Gadget Freak inventors had gone ahead and commercialized his/her invention and sold it? I've noticed reader requests for exactly that on some Gadget Freak comment boards.

apresher
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DIY Injection Molding
apresher   6/6/2013 4:58:05 PM
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Excellent slide show, and a good example of engineers as opportunists.  Developing a way to cost effectively create custom parts.

Rob Spiegel
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Re: Its actually nostalgic
Rob Spiegel   6/6/2013 12:20:10 PM
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Yes, I remember those kits as a kid, Jim. I had one that made plastic (or some similar material) army men. 

JimT@Future-Product-Innovations
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Its actually nostalgic
JimT@Future-Product-Innovations   6/6/2013 9:28:47 AM
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Do you remember when you were a kid; there were two examples of modern industry at the Zoo? One was the little coining press that took your copper penny and rolled it into a coined medallion; the other was micro injection press that molded a little bear as a souvenir in front of the Polar Bear house. For a Quarter, you watched a little mold-press produce your bear.  I still remember the smell of molten polycarbonate I smelled for the very first time.

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