http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php?t=rview&goto=6020&th=1280#msg_6020
I'am still a newbie, and so I've a little problem when uploading these two files. I'm getting the error: "Only manifold objects can be printed.".

I know what kind of problem this is, but I can't find any problems in my editor.

It would be great if someone could help me out with this.

Grz,

Jeroen ]]> jeroen870 2009-08-23T09:12:38-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6023&th=1280#msg_6023

Give this a go and see if you can work it out.

http://www.wikkid-widgets.com/RepairingNon-manifoldmesheswit hBlender.pdf

]]> WiKKiDWidgets 2009-08-23T12:52:50-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6024&th=1280#msg_6024
But the model is not that small. (23x28x2,2(=wall) in mm )

What can I do?]]> jeroen870 2009-08-23T14:45:09-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6028&th=1280#msg_6028 katenjerschaal.stl:
The side walls are 1.00619mm thick. Needs to be at least 2mm for WSF.

katenjerschaal.stl:

I think it's the arches of the "K" when they first come out. They are only 1.2mm there. Not entirely sure though.

I'd try scaling just a little bigger and then test upload to see when it is able to print.]]> WiKKiDWidgets 2009-08-24T00:51:53-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6031&th=1280#msg_6031
The biggest file is OK now. (was only a manifold problem)

And the strange thing is that the small file is just a little bit different then the file I posted a topic before. And that file is ok now.]]> jeroen870 2009-08-24T09:32:22-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6037&th=1280#msg_6037
The attached version is printable.]]> WiKKiDWidgets 2009-08-24T12:35:53-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6039&th=1280#msg_6039 I'll play with it a little more.

But there is one thing I don't understand; if you have a tip (a spear f.e.), then the tip is getting smaller to the end. At one point it will be smaler then 2mm.
Why does shapeways does not complain at that point?

Tnx for your help btw.]]> jeroen870 2009-08-24T15:50:24-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=6040&th=1280#msg_6040

The first is a valid printable object.
Shapeways has identified the minimums for:

• Size
  
• Thickness
  
• Wall thickness (For hollowitems)
  

They have validated through testing that anything less than a certain value (different for each Material)will not produce a valid print. I.e., it would be so thin it would be sure to break.

That being said, the actual print resolution is much much finer than these thresholds. In WSF it is down to .2mm (200 microns)

I am not privy to the actual algorythm they use to calculate a valid print, but rest assured, these are there to keep you, the customer, from ordering something they know you won't be happy with.

You can read about Materials here:
http://www.shapeways.com/about/material-options]]> WiKKiDWidgets 2009-08-24T17:27:06-00:00