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The Marlyand Plastics Injection Molding contest


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Oh, this is a very nice contest!
Is there a deadline or something like that?
#1 Mendel on 2010-01-07 21:30 (Reply)
The 7th of Febuary. oops, was in the newsletter.
#1.1 Joris on 2010-01-08 08:05 (Reply)
Interesting!

Another question, to add to Mendel's... are we submitting the mold(s) or the *model*?

If we're just submitting the model, then it seems like an awfully difficult task to assess whether it's injection moldable. Would there be any way to get feedback from the folks at Maryland on submitted designs, so that there are no "Surprise! You could have won, but it would have required a complicated mold." moments right at the end.
#2 Eric Finley on 2010-01-07 22:42 (Reply)
Eric,

There will be the possibility to ask questions and get feedback. The idea is to have a design that ultimately can be easily turned into an injection mold. So a 30 part design will not work. I'd model the final item and then we can always work with you to help you turn it into a mold after the contest. Try to remain close to the criteria as described above, I think that this is paramount.
#2.1 Joris on 2010-01-08 08:09 (Reply)
All you need is the Model. We send that off to the Mold makers and they design the mold around the model.

Like the description says. Look at anything plastic (well other then 3D printed, blown, or thermoformed) like the fork with the seam. If you look at the top of the fork there are no "undercuts". That means there is no place that requires a piece of the mold the move in then out to not hit the part as it exits. It's kind of hard to explain but look over some plastic items you have around and look for extra seams. Those items required more complex molds.
#2.2 Mike on 2010-01-08 14:14 (Reply)
I have got some additional questions:
- Is it required to create the design in U.S. measure units (most of the world use metric system) ?
- What is the minimum wall thickness ?

Thanks for the answers !
#3 Fx on 2010-01-08 16:31 (Reply)
Create it in your native units, I can convert it over to English standard.
For wall thickness, it depends on the size. I'd say to look at different plastic items. The thinner it is the less expensive to produce, but for this line of products, a little thicker and heavier is needed as this is a higher end line. Overall thickness isn't going to be too important as weight and thickness are things I can modify usually fairly easily. The main goal here is design.
#3.1 Mike on 2010-01-08 16:49 (Reply)
hi, just curious what the maximum build envelope is for this design
#4 Anonymous on 2010-01-09 23:30 (Reply)
By build envelope, you mean the max size? For this we are completely open.
#5 Mike on 2010-01-13 20:17 (Reply)
Hi all,

you can see my contribution to the contest here: http://www.shapeways.com/forum/index.php?t=msg&th=1910
I think I will also add a dish/lid in the same style later.
Regards,

Magic
#6 Magic (Homepage) on 2010-01-24 10:37 (Reply)
Just to clarify: the newsletter says the limit for this contest is the 10th of february. Joris says in this thread the end is the 7th of february. Which deadline is the right one ? Thank you for the answer !
#7 Fx on 2010-02-05 11:28 (Reply)
I'm an idiot. I guess we make it the 10th just in case.
#7.1 Joris on 2010-02-05 11:48 (Reply)
When will you announce the results? did you check our designs?
#8 omc design (Homepage) on 2010-02-13 21:36 (Reply)
I need a manufacturer that can make custom molded, 3D, relief maps with 4 color complete printed surface on one side. It will not be for any structural function - it will be just for display.

Think map of Texas or Florida...thin like a Halloween mask - but maybe twice as thick - it needs to hang flat on a wall and not bend. I would also like an option where I could suspend the map from 1-2 "strings"
It would be nice if the factory was in North America - Asia is fine if costing justifies timing.
#9 Tommy Lewis (Homepage) on 2010-08-24 03:50 (Reply)

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