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Weekend Contest #15: Get Your Squishy On! [message #69377] Fri, 07 June 2013 09:39 UTC Go to next message
avatar bartv  is currently offline bartv
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index.php?t=getfile&id=33938&private=0

(Image: Stag 150mm High by Dotsan)

Did you have a chance to look at our new Elasto Plastic yet? We launched it last week and we're already seeing some pretty amazing things coming out of our printers (daily routine: arrive at the office, grab some coffee, walk past the printers to see what's going on, have mind blown).

What will you use it for? This weekend I challenge you to come up with some rad new applications for flexible 3D printed objects.

To up the ante, you can win a $50 printing voucher this week!

Enjoy!

How to Enter

Design something that requires flexibility. Post your work here on the forum, and add a picture! Deadline is Monday evening, midnight.

What's the prize?

$50 to use towards your creation, or any other Shapeways purchase.

That's all?

Certainly. Have fun!

[Updated on: Fri, 07 June 2013 09:43 UTC]


Community Manager Europe | Shapeways
Re: Weekend Contest #15: Get Your Squishy On! [message #69407 is a reply to message #69377 ] Fri, 07 June 2013 15:30 UTC Go to previous messageGo to next message
avatar waetherman  is currently offline waetherman
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I guess this is the place to enter my design? I don't want to cross post, but here's a shortened version of the description I posted in the other elastic discussion thread;

I recently got a Fitbit Flex, which is a health activity tracking device about the size of a Tylenol capsule. It comes with a bracelet that has a little pocket for the tracker. Here's a pic of the fitbit tracker and braclet that holds it;

http://static7.fitbit.com/simple.b-dis-png.h22e0f2e02d7f7fcc97fc90251151df37.pack?items=%2Fcontent%2Fassets%2Fonezip%2Fimages%2Ffeatures-content%2Fflex%2Fflex_08.png

I wear a watch and don't want to wear the bracelet, so what I came up with is the Fitbit Backpack. It's a little pouch that can slip on to a watch band or other bracelet, and hold the fitbit inside. That way I can wear my watch and still have the Fitbit on.

For reference of scale, the length of the main part is about 1.5" and it's about .5" wide. The rings at each end are designed for a 24mm (~1") watch band and I have also designed (and ordered) one with a 22mm ring to see if the material is stretchy enough to fit a larger wrist band, and if that holds it in place better. Cost of production on this is about $6.

index.php?t=getfile&id=33940&private=0
index.php?t=getfile&id=33963&private=0

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[Updated on: Sat, 08 June 2013 17:24 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69416 is a reply to message #69407 ] Fri, 07 June 2013 16:16 UTC Go to previous messageGo to next message
avatar AmLachDesigns  is currently offline AmLachDesigns
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Waetherman - nice idea.

I don't know what this material feels like, how soft it is etc, but if it were me I would round the parts that I presume are next to your wrist, under the strap. Otherwise I can imagine it might be uncomfortable.
Re: Weekend Contest #15: Get Your Squishy On! [message #69420 is a reply to message #69416 ] Fri, 07 June 2013 16:27 UTC Go to previous messageGo to next message
avatar waetherman  is currently offline waetherman
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That's an interesting thought - I'll have to see how the prototypes come out and whether that's a problem or not. The rings are just 2mm thick, so I don't think it'll be too uncomfortable - I imagine they'll barely touch the wrist. But you're right, it would probably be better either way if it were rounded.
Re: Weekend Contest #15: Get Your Squishy On! [message #69427 is a reply to message #69377 ] Fri, 07 June 2013 17:51 UTC Go to previous messageGo to next message
avatar ideakid  is currently offline ideakid
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My idea for the Elasto Plastic is to use it as a socket for prosthetic limbs.

The socket is the part of the artificial limb that connects with the patient's residual limb, or limb stump. From what I've learned, the socket plays a huge roll in how well the prosthetic will work. If it's uncomfortable or rigid, it will not be favorable to the wearer.

By using Elasto Plastic and 3D scanning technology, the socket can be improved dramatically. The elastic property of the material will hold the stump to the prosthetic better by compressing it gently to create a tighter seal. By 3d scanning the stump and printing the socket you can create a more accurate fit that is custom made to the individual (better than using molds). Because the human body is in motion, the material will flex as needed, yet retain its shape. Think of it as Elasto Plastic Tissue - the interface between man and machine.

I've included a few images here. Since the material also takes dye, it would be amazing to create some artwork on the socket too (see last photo).

http://www.biodesigns.com/images/interface_socket.png

http://i2.cdn.turner.com/cnn/dam/assets/130416134324-david-sengeh-av-7-vertical-gallery.jpg

http://farm7.staticflickr.com/6233/6266680889_da8b9ae414_z.jpg
Re: Weekend Contest #15: Get Your Squishy On! [message #69433 is a reply to message #69377 ] Fri, 07 June 2013 19:02 UTC Go to previous messageGo to next message
avatar MrNib  is currently offline MrNib
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How could I not make something in Elasto Plastic for my favorite pen kit from last week's contest?

I present to you the lumpy bumpy elastic pen sleeve/blank for metallo pen kits! On the bright side it will not need any post production finishing work except for possibly coloring it with dye. A tie die pattern would be cool. Hopefully it will arrive long enough to fit on the kit. For this application having the part come back longer than the design file is a good thing. It would let the "squish" action replace the work of sanding the part to fit.

.
http://images1.sw-cdn.net/model/picture/674x501_993649_896002_1364188334.jpg

[Updated on: Tue, 11 June 2013 04:04 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69436 is a reply to message #69433 ] Fri, 07 June 2013 19:18 UTC Go to previous messageGo to next message
avatar Youknowwho4eva  is currently offline Youknowwho4eva
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Is your model public MrNib? Not showing up.


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Re: Weekend Contest #15: Get Your Squishy On! [message #69438 is a reply to message #69436 ] Fri, 07 June 2013 19:38 UTC Go to previous messageGo to next message
avatar MrNib  is currently offline MrNib
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Finally finished a couple of pens using the same design file as what is being fabbed in elasto right now for future comparison. I'm not sure if anyone actually wants to use a squishy pen though unless it's labelled as making it more ergonomic...

index.php?t=getfile&id=34023&private=0

[Updated on: Sat, 08 June 2013 04:56 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69440 is a reply to message #69438 ] Fri, 07 June 2013 19:42 UTC Go to previous messageGo to next message
avatar Youknowwho4eva  is currently offline Youknowwho4eva
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Ah but we can't see your picture that's liked to a private item.


I learned a long time ago the wisest thing I can do is be on my own side, be an advocate for myself and others like me. -Maya Angelou
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Re: Weekend Contest #15: Get Your Squishy On! [message #69442 is a reply to message #69440 ] Fri, 07 June 2013 19:45 UTC Go to previous messageGo to next message
avatar MrNib  is currently offline MrNib
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Youknowwho4eva wrote on Fri, 07 June 2013 19:42

Ah but we can't see your picture that's liked to a private item.


Made the model public. permalink: http://shpws.me/o8US

[Updated on: Fri, 07 June 2013 20:49 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69444 is a reply to message #69416 ] Fri, 07 June 2013 20:14 UTC Go to previous messageGo to next message
avatar designerica  is currently offline designerica
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i touched it. when you rub your fingers over the surface it feels slightly grainy-- almost fuzzy. it's not unpleasant. i also saw duanne's attempts to dye it and it looks like it took the dye decently well.


www.designerica.com
Re: Weekend Contest #15: Get Your Squishy On! [message #69447 is a reply to message #69377 ] Fri, 07 June 2013 20:54 UTC Go to previous messageGo to next message
avatar joabaldwin  is currently offline joabaldwin
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Uhmm... *ahem*.... Do sex toys count? Very Happy
Re: Weekend Contest #15: Get Your Squishy On! [message #69448 is a reply to message #69444 ] Fri, 07 June 2013 20:54 UTC Go to previous messageGo to next message
avatar jasolo  is currently offline jasolo
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Waiting for the next monday when my first test of this new material will arrive:

index.php?t=getfile&id=33983&private=0

It consists of two bands for a caterpillar and an elastic hose, both for a discontinued construction game similar to Lego, so the fit is incompatible but the idea could be used on Lego. Wink
Re: Weekend Contest #15: Get Your Squishy On! [message #69455 is a reply to message #69377 ] Fri, 07 June 2013 21:48 UTC Go to previous messageGo to next message
avatar UniverseBecoming  is currently offline UniverseBecoming
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An air muscle. Very Happy

http://images1.sw-cdn.net/model/picture/674x501_1131044_1043927_1370185935.jpg






It always was. It always was because somethingness cannot spawn from nothingness. And in the was of the past there is the forever of the now. Only now. Only now and nothing new, for anything new would add to the infinite, yet there can only be one infinite. Only one. The universe is only becoming something new in the delusion of our minds. This delusion that makes life worth living in our perceived universe becoming.
Re: Weekend Contest #15: Get Your Squishy On! [message #69476 is a reply to message #69444 ] Sat, 08 June 2013 02:32 UTC Go to previous messageGo to next message
avatar vandal968  is currently offline vandal968
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designerica wrote on Fri, 07 June 2013 20:14

. i also saw duanne's attempts to dye it and it looks like it took the dye decently well.

Can you post a link, I can't find it.

thanks,
c
Re: Weekend Contest #15: Get Your Squishy On! [message #69477 is a reply to message #69476 ] Sat, 08 June 2013 04:46 UTC Go to previous messageGo to next message
avatar designerica  is currently offline designerica
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link to what? my eyes perceived an item in real life. i cannot provide a link to my brain. not yet. sorry!


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Re: Weekend Contest #15: Get Your Squishy On! [message #69480 is a reply to message #69477 ] Sat, 08 June 2013 12:47 UTC Go to previous messageGo to next message
avatar Daphne  is currently offline Daphne
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I created these key decorations. My boyfriend Simon and I have the same kind of housekeys (as we both live on campus). Its very hard to see which key is which. So I made these two things that can be put over the keys.

index.php?t=getfile&id=34025&private=0

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[Updated on: Sat, 08 June 2013 12:48 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69494 is a reply to message #69377 ] Sat, 08 June 2013 18:55 UTC Go to previous messageGo to next message
avatar draw  is currently offline draw
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I finally saw the new Star Trek movie last night and got a glimpse of an alien tree creature in the opening scenes of the film. It was some kind of tree anemone or sea squirt that catches and eats smaller aliens. It should be nice and wiggly made in this new-fangled elastic process! I added some internal structures based on the teachings of my high school biology teacher. Annular muscle rings, mouth structure, stomach pouch, pooper hole, etc.

http://images1.sw-cdn.net/model/picture/674x501_1143604_1058635_1370715578.jpg


http://www.shapeways.com/model/1143604
.
Re: Weekend Contest #15: Get Your Squishy On! [message #69509 is a reply to message #69494 ] Sun, 09 June 2013 18:55 UTC Go to previous messageGo to next message
avatar MrNibbles  is currently offline MrNibbles
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These aren't entries but are to test materials for dyeing, painting, compatibility with chemicals or other physical stress. Nothing fancy just simple rods, strips, and disks. It's cheaper than ruining a prize print with a bad choice of decorating. I will try some elasto ribbons to test dyes.

http://images1.sw-cdn.net/model/picture/220x165_1105603_1014 612_1369019702.jpg
http://images1.sw-cdn.net/model/picture/220x165_1105606_1014615_1369019797.jpg
http://images1.sw-cdn.net/model/picture/220x165_1105806_1014837_1369029969.jpg
Re: Weekend Contest #15: Get Your Squishy On! [message #69520 is a reply to message #69509 ] Mon, 10 June 2013 06:55 UTC Go to previous messageGo to next message
avatar bartv  is currently offline bartv
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Hey all,

wow! There's some great work coming in from this week's contest. We still have a full day to go, so keep them coming Smile

Bart


Community Manager Europe | Shapeways
Re: Weekend Contest #15: Get Your Squishy On! [message #69523 is a reply to message #69520 ] Mon, 10 June 2013 09:21 UTC Go to previous messageGo to next message
avatar Ttrains  is currently offline Ttrains
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It farts powder when you squeeze it cause there is a small hole on the bottom

index.php?t=getfile&id=34125&private=0


http://www.shapeways.com/forum/index.php?t=getfile&id=33715&private=0
http://www.shapeways.com/forum/index.php?t=getfile&id=33714&private=0


@Bart, it's painted with regular markers we have in the office, nothing fancy Laughing
Unfortunately the pink bleeds out which kinda ruined it

[Updated on: Mon, 10 June 2013 09:52 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69524 is a reply to message #69523 ] Mon, 10 June 2013 09:50 UTC Go to previous messageGo to next message
avatar bartv  is currently offline bartv
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@MinionBoss: dude, I'll let you get away with that comment if you explain to everyone how you made that model in color Wink


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Re: Weekend Contest #15: Get Your Squishy On! [message #69525 is a reply to message #69524 ] Mon, 10 June 2013 10:08 UTC Go to previous messageGo to next message
avatar Ttrains  is currently offline Ttrains
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http://www.youtube.com/watch?v=c4yyVVbgb80

Enjoy farting!..... i mean,, enjoy watching
Re: Weekend Contest #15: Get Your Squishy On! [message #69534 is a reply to message #69377 ] Mon, 10 June 2013 13:20 UTC Go to previous messageGo to next message
avatar gersteinj  is currently offline gersteinj
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Here's a design for a soft iPhone case. It should be easier to get on and off the phone. I have some ideas for other cases using this as well, but this will be my initial test of it.

index.php?t=getfile&id=34130&private=0

Re: Weekend Contest #15: Get Your Squishy On! [message #69565 is a reply to message #69534 ] Mon, 10 June 2013 21:05 UTC Go to previous messageGo to next message
avatar recklesstryg  is currently offline recklesstryg
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Fresh out the printer. Just have to give it a dye job and it will protect my iPhone 5 from falls.
I have been waiting for elasto material so I could do a case right
http://farm4.staticflickr.com/3753/9009589617_31078abddd_o.jpg
http://farm9.staticflickr.com/8420/9010771802_dc3fc6dac1_o.jpg

11 June 13:The Case had to have a few minor dremal adjustment for a good fit (This is my fault I forgot to update the file)
Update: Prep for Dyeing
Following:<a href=" http://blog.makezine.com/2013/05/09/how-to-dye-your-3d-print s/" target="_blank"></a>
Step: Soaking
http://farm3.staticflickr.com/2869/9016122576_8e19ef6cb1_c.jpg

[Updated on: Tue, 11 June 2013 12:47 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69566 is a reply to message #69377 ] Mon, 10 June 2013 21:30 UTC Go to previous messageGo to next message
avatar Marc_van_Megen  is currently offline Marc_van_Megen
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A flower and a Hummingbird are merged into one entity resulting in a unique bracelet design. The rapid movement of the wings inspired me to create a flower (Silene) at the backside.

The coloured WSF version will be available within a week. I look forward to be able to also put this elasto plastic version in my shop! http://bit.ly/MvMShapeways

Enjoy,

Marc

index.php?t=getfile&id=34182&private=0


Marc van Megen is a Dutch designer with a passion for creation. Active in the field of 3D printing and Industrial Design. More Designs: http://vanmegenproductdesign.com
Re: Weekend Contest #15: Get Your Squishy On! [message #69583 is a reply to message #69566 ] Tue, 11 June 2013 03:56 UTC Go to previous messageGo to next message
avatar TheBigAndTheLittle  is currently offline TheBigAndTheLittle
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A working model of the human heart.

I envision this as a life-sized, mostly anatomically accurate model of a human heart 3D printed out of Elasto Plastic. The interior of the heart will not be visible, but will include realistic models of the four valves inside a human heart. You will be able to play with it however you like, but I'm most excited about wire-tieing a few pieces of 3/8" tubing to the pulmonary veins, the aorta, and the vena cava and manually manipulating the heart to actual pump "blood."

This idea can't really be done with conventional design processes. 3D printing a rubber-like plastic is perfect.

The human heart is a complex machine, and this will be a lengthy, and iterative design process. However, there are many models for human heart already available, and I know just where to begin.

I will design a simple hand pump that uses the tricuspid valve as both the entry valve and exit valve. After 3D printing it, I will wire tie 3/8" tubing to both ends, as above, and pump water through it simply by squeezing it. The shape of the valve will force the water in only one direction. The pump will be 1 1/2" in diameter at the widest and narrow to fit the tubing at each end. The bulb of the pump will be about 4" long.

The crux of both the hand pump and the full model of the human heart will be the tricuspid and bicuspid valves. The design of, and margins on these valves will have to be right for the pump to work at all.

I had this idea as soon as I saw "Elasto Plastic" last week, but I was gone all weekend and did not see the contest until this evening. This is as far as I've gotten on the hand pump:

index.php?t=getfile&id=34195&private=0

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Re: Weekend Contest #15: Get Your Squishy On! [message #69585 is a reply to message #69566 ] Tue, 11 June 2013 04:00 UTC Go to previous messageGo to next message
avatar MrNibbles  is currently offline MrNibbles
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http://www.shapeways.com/model/1148249/maggot-jig-assortment .html

I was excited to see a flexible white process because it means I can finally make plump and squooshy baits for fishing. Fish love anything that looks like a maggot - or a bug, or a worm, or anything you probably wouldn't want to eat. If this stuff is porous enough you could also soak it in a fish attractant to make it smell irresistible!

index.php?t=getfile&id=34196&private=0

Seven pan fish baits that range between 0.5 and 1.3 inches for under $5! What a great deal! Sizes could easily be scaled up for larger fish or casting lures. They could also be sprued together if that helps. Fish don't care if there's a little sprue cut-off scar on a maggot!

Re: Weekend Contest #15: Get Your Squishy On! [message #69588 is a reply to message #69377 ] Tue, 11 June 2013 06:57 UTC Go to previous messageGo to next message
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Yesterday the caterpillar and the hose finally came. Visually they seem dusted but it's a kind of micro hair. By the other hand, I don't see the steppings of S&F neither the layers of Detail, only those white micro hairs. Any cleaning method to remove them? In the case of the caterpillar, I'll have to reduce its width from 1 mm to the minimum to make the band softer. With 1 mm it's difficult to move the bands on smooth surfaces.

The band at the left was washed with water and toothbrush (later the hairs came back):
http://s14.postimg.org/z51q2bxfx/oruga_tubo5.jpg http://s23.postimg.org/ygtx8lx4n/oruga_tubo6.jpg http://s18.postimg.org/70ws0f82t/oruga_tubo7.jpg http://s23.postimg.org/pffduzz7b/oruga_tubo8.jpg

I have also made a video: http://youtu.be/XbRszlCeX9s
Re: Weekend Contest #15: Get Your Squishy On! [message #69592 is a reply to message #69588 ] Tue, 11 June 2013 08:54 UTC Go to previous messageGo to next message
avatar bartv  is currently offline bartv
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@waetherman

@ideakid - I absolutely LOVE this idea, I'd be really interested in seeing if this would actually work.

@MrNib - the pens are back!!

@jasolo - did you try them? Do they actually work?

@UniverseBecoming - this would be a great test for the material's strength Smile

@Daphne - super clever, I think you're on to something here.

@draw - ha, I went to see ST last weekend and I wouldn't have noticed that little bugger if it weren't for your comment Wink

@MinionBoss - you would've won if you didn't work three desks away from me Wink I can offer you a free cup of coffee though?

@gersteinj - nice one. I worry though that the open-ended part may be too flexible to actually hold the phone.

@recklesstryg - cool, an actual product! Did you try it on your phone? How was the fit?

@Marc_van_Megen - that's gorgeous. We're a little worried that this may not be printable in Elasto though. And if it was, it would probably loose it's shape fast, making the design less attractive.

@TheBigAndTheLittle - intriguing, I really hope you can pull it off and show us the result!

@MrNibbles - ha, 3d printed maggots! Love it Smile

After some debating we selected Daphne's design as the winner for this weekend's contest. It's a simple, clean idea that we think will work very well with Elasto Plastic (although you may have to review the embossing a bit, Daphne - it may not come out right). We also suspect that a co-creator product of this might just sell nicely Smile

Congrats Daphne, the $50 voucher is on its way to you!

Everyone else, great work, this was one of the most buzzing weekend contests so far! What would you like to do next weekend?

Bart


Community Manager Europe | Shapeways
Re: Weekend Contest #15: Get Your Squishy On! [message #69606 is a reply to message #69592 ] Tue, 11 June 2013 14:15 UTC Go to previous messageGo to next message
avatar UniverseBecoming  is currently offline UniverseBecoming
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Congratz Daphne! Surprised

Yeah, profit potential wise as a co-creator Daphne's product would definitely do well. Smile






It always was. It always was because somethingness cannot spawn from nothingness. And in the was of the past there is the forever of the now. Only now. Only now and nothing new, for anything new would add to the infinite, yet there can only be one infinite. Only one. The universe is only becoming something new in the delusion of our minds. This delusion that makes life worth living in our perceived universe becoming.
Re: Weekend Contest #15: Get Your Squishy On! [message #69615 is a reply to message #69606 ] Tue, 11 June 2013 15:02 UTC Go to previous messageGo to next message
avatar weatherman  is currently offline weatherman
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Hey, how come I don't get any words of encouragement!? Smile

Congrats Daphne! I think the idea of doing key sleeves is a good one - maybe you can add some wacky designs with spikes or something to give them more tactile variety - they could be especially useful for the visually impaired.

Mr. Nibbles; is "fish attractant" really another way of saying "maggot juice"?

Jasolo: I think they came out well - nice video of the material in action. Looking forward to updates on this.

Marc: It's a beautiful rendering, but I hate to say that the first thing I thought of was "Human Centipede" Confused

After seeing all the things people are doing or planning to do with this material, I'm even more excited to get the samples I ordered. I can't wait to try it out!

[Updated on: Tue, 11 June 2013 15:06 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69616 is a reply to message #69615 ] Tue, 11 June 2013 15:19 UTC Go to previous messageGo to next message
avatar Marc_van_Megen  is currently offline Marc_van_Megen
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Weatherman, Good to have a vivid imagination, basic feature of a creative mind. In my shop you'll see the Hummingbird-Flower sculpture clearly: http://bit.ly/HummingbirdFlowerBracelet


Marc van Megen is a Dutch designer with a passion for creation. Active in the field of 3D printing and Industrial Design. More Designs: http://vanmegenproductdesign.com
Re: Weekend Contest #15: Get Your Squishy On! [message #69621 is a reply to message #69377 ] Tue, 11 June 2013 16:54 UTC Go to previous messageGo to next message
avatar MrNib  is currently offline MrNib
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I like the idea of custom key wraps. I bought some generic ones at a Sears close out sale but all they did was make them in different colors. Having different customized shapes or features you can feel in the dark would be a big plus!

I must admit that the first thing I thought of was the Hummingbird Centipede as well. I should go visit a psychiatrist.

I have an idea for a future contest because it's a problem:

Process independent latches, catches, unions, etc. I've made some stabs at joining two parts together but invariably they don't seem to work well when the parts are fabricated in different processes. You might have a screw and a nut that fit together snugly in WSF but are too loose when using alumide. So either you need different design files for different processes, you need to do post processing, or you need joining methods that are process independent.

Ideally there would be an option selection for any model that would apply a universal surface thickness adjustment at shapeways to a model before it is built such that the part fabricated in any process ends up being as close to identical as is feasibly possible. For example, WSF might have surface thicknesses that are increased by 5 mils compared to the design file. Uniformly shaving off 5 mils thickness from a WSF model or adding 5 mils thickness to an alumide model would make them more identical or all closer to the design file dimensions after fabrication. Different processes would have different adjustments. Just a thought for the software experts...
Re: Weekend Contest #15: Get Your Squishy On! [message #69631 is a reply to message #69621 ] Tue, 11 June 2013 18:32 UTC Go to previous messageGo to next message
avatar Daphne  is currently offline Daphne
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Thanks everyone! I'll probably design some more key wraps/sleeves.

@ MrNib: that seems like a lot of work. As I understand (I'm currently working with a SLM machine, my knowledge of other additive manufacturing is limited) the accuracy is not only methode and material dependent, but also orientation wise. The accuracy in the (x,y) orientation is almost perfect, while in the direction of the z-axis it's way less. With Selective Laser Melting, it's just horrible. I know the difference is less with plastics. However, I assume the difference is still there.

And it wouldn't be a problem if you could decide the orientation of your product before. I imagine an option saying 'this surface needs to have perfect accuracy, so this orientation is the only orientation it could have'. Or some really complex software that adds or removes material depending on the process, material and orientation. But in the optimization of the production space the objects get rotated. Fixing the orientation of your product in order to make sure it would fit would lead to a loss in efficiency. And using complex software after filling up the production space would cost a lot of time for Shapeways. Maybe some pay more for a fixed orientation option? I don't really know if that would fix the problem, as I only know why the accuracy of SLM differs.

[Updated on: Tue, 11 June 2013 18:33 UTC]

Re: Weekend Contest #15: Get Your Squishy On! [message #69635 is a reply to message #69631 ] Tue, 11 June 2013 19:37 UTC Go to previous messageGo to next message
avatar MrNib  is currently offline MrNib
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@Daphne Those are good points. So even if I create different design files of a part for WSF, polished WSF, colored SF, FD, alumide, and polished alumide for consistency the resulting parts may not always fit together well if the models are oriented differently in different runs. Maybe the best we can hope for is that multiple parts within a design file are always oriented the same way in the production machine relative to the file.

I come from the integrated circuit design world where there are many techniques to compensate for feature growths or shrinkage in the fabrication process relative to the original design file, depending on the process and what foundry is used to fabricate the circuits. Sometimes you live with the expected feature changes and perform modelling in advance to predict the effects or range of expected effects based on statistics. Sometimes the foundry corrects the design files to pre-compensate for expected changes. Sometimes the designer does this if the foundry doesn't. An IC foundry also generally provides results from a standard process control monitor (PCM) with various elements placed on every wafer that is produced. You can examine line widths and plating thicknesses, resistances, transistor parameters, etc. Automated testing of these parts can then provide feedback to the designer as to what happened to circuits on a wafer or even different parts of a single wafer using multiple PCMs. In addition the foundry uses the PCM for feedback as how to keep their overall process centered and high yielding. Likely shapeways uses some level of process monitoring with the equivalent of 3D PCMs for process control but how it fully compares to IC processes where you are worried about sub-micron variations I'm not sure. Maybe the 3D world is still primitive compared to the high tech world of electronics. At least the material guideline pages give some indication of expected process variations in terms of accuracy that covers all 3 dimensions.


Anyway, that's why I suggested the contest to design process independent (or at the very least process tolerant) fasteners, latches, unions, etc. That should be the goal regardless of whether you are designing beer bottle caps, integrated circuits, or shapeways gizmos!
Re: Weekend Contest #15: Get Your Squishy On! [message #69657 is a reply to message #69615 ] Wed, 12 June 2013 08:19 UTC Go to previous messageGo to next message
avatar bartv  is currently offline bartv
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weatherman wrote on Tue, 11 June 2013 15:02

Hey, how come I don't get any words of encouragement!? Smile


Because you didn't post anything? Smile

BUT, I did think you wrote an excellent reply Wink

Cheers,

Bart


Community Manager Europe | Shapeways
Re: Weekend Contest #15: Get Your Squishy On! [message #69659 is a reply to message #69635 ] Wed, 12 June 2013 08:58 UTC Go to previous messageGo to next message
avatar Arnaud3D  is currently offline Arnaud3D
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A little off topic but interesting :

@ MrNib & @Daphne : I had the chance to sit on a meeting showing results about a design in aerospace industry using 3Dprinting (aluminum alloy) and what you are talking about is the main concern for the 3Dprinting process. Right now the fact that 3D printing is faster than conventional manufacturing is not really demonstrated because there is a huge part of the R&D were you communicate between the design engineers and the manufacturer. This long back&fourth process is very slow and questions such as : orientation in the machine, interference with the powder wiper and even the orientation relative to the Argon flow in the machine can affect the finish. It would be nice to have a turn-key system for the process but it is not coming anytime soon. For high quality finish right now you almost need to have someone who knows well the process and also the design phase. This is my job right now and I try to gather a lot of information from both sides to really understand the whole challenge.
Re: Weekend Contest #15: Get Your Squishy On! [message #69660 is a reply to message #69657 ] Wed, 12 June 2013 09:05 UTC Go to previous messageGo to next message
avatar weatherman  is currently offline weatherman
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weatherman = waetherman. Accidentally set up two accounts.

Re: Weekend Contest #15: Get Your Squishy On! [message #69662 is a reply to message #69660 ] Wed, 12 June 2013 09:16 UTC Go to previous messageGo to previous message
avatar bartv  is currently offline bartv
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Shees, now I feel stupid Wink I actually spent some time on their website as I rather liked the product! If this works well, it's a clever add-on for such a product. I do wonder how comfortable it will be though. Let us know!

Bart


Community Manager Europe | Shapeways

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