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Possible with WSF/RSF? (3mm sphere with 1.5mm hole through it) [message #53650] Wed, 05 September 2012 18:56 UTC Go to next message
avatar Neekko  is currently offline Neekko
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Registered: March 2011
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Um... basically: a really small bead.

I am curious because I've been into hand-made crafts for the past half-year and for some unknown reason I cannot find any white or red 3mm beads that aren't pearlescent or don't have large enough holes. I am considering Shapeways as a solution to my bead dilemma, but I'd like to know if these dimensions are possible first.

I also suck at modeling and have no clue how to get things to scale. Attached is an STL file of a single bead if anyone wants to take a look at it.

Thanks for looking! Smile

  • Attachment: 3mmbead4.stl
    (Size: 40.71KB, Downloaded 16 time(s))

Re: Possible with WSF/RSF? (3mm sphere with 1.5mm hole through it) [message #53652 is a reply to message #53650 ] Wed, 05 September 2012 19:12 UTC Go to previous messageGo to next message
avatar Youknowwho4eva  is currently offline Youknowwho4eva
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Well if your doing wsf, your walls have to me at least .7mm. But your min bounding box is 7.5mm (x+y+z), but if your bead has a diameter of 3mm, it'd only have to be at least 1.5mm tall. So yes it should be printable as long as you follow these rules.


The Mad Moder
michael@shapeways.com
Re: Possible with WSF/RSF? (3mm sphere with 1.5mm hole through it) [message #53657 is a reply to message #53652 ] Wed, 05 September 2012 19:45 UTC Go to previous messageGo to next message
avatar Neekko  is currently offline Neekko
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Thanks for the input! I guess I'll order a sample and see how it goes from there.
Re: Possible with WSF/RSF? (3mm sphere with 1.5mm hole through it) [message #53662 is a reply to message #53652 ] Wed, 05 September 2012 20:56 UTC Go to previous messageGo to next message
avatar stop4stuff  is currently offline stop4stuff
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3mm diameter = 3mm tall

A 3mm diameter sphere will have a bounding box of 3 x 3 x 3 mm = 3+3+3 = 9mm, so is good for the specs, however a bead with a hole will have one axis shy of 3mm.

An alternative to buying in one bead of those dimension is to have many beads on a string or in a box - the string/box is part of the model file too - this will help keep the individual bead price down too. Looking at the model file, a 1.27mm dia hole may be a bit small for a string without fusing the (0.7mm) string to the beads, but putting a hundred or so in a box/cage will keep the unit price down.

Paul



Re: Possible with WSF/RSF? (3mm sphere with 1.5mm hole through it) [message #53663 is a reply to message #53662 ] Wed, 05 September 2012 21:07 UTC Go to previous message
avatar Neekko  is currently offline Neekko
Messages: 9
Registered: March 2011
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Junior Member
stop4stuff wrote on Wed, 05 September 2012 20:56

3mm diameter = 3mm tall

A 3mm diameter sphere will have a bounding box of 3 x 3 x 3 mm = 3+3+3 = 9mm, so is good for the specs, however a bead with a hole will have one axis shy of 3mm.

An alternative to buying in one bead of those dimension is to have many beads on a string or in a box - the string/box is part of the model file too - this will help keep the individual bead price down too. Looking at the model file, a 1.27mm dia hole may be a bit small for a string without fusing the (0.7mm) string to the beads, but putting a hundred or so in a box/cage will keep the unit price down.

Paul





Thanks for the advice!

I managed to duplicate the bead 200 times without going over the 1 million polygon limit. I did a couple tweaks to the file too (made the hole bigger) and just kept uploading the file to Shapeways until the numbers on the product page looked right. Hopefully it works out!

 
   
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