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=57214&th=11650#msg_57214

I think I will make the engraving on the front about 1.5x-2x deeper. The back engraving is fine. However, the back curved in for some reason. I am not sure why - if it was during handling, I would expect the back to have broken entirely, not deformed.

Any ideas what went wrong?

Possible solutions:
1. Increase the thickness of the backplate.
2. Add a support lattice within the hollow space.
3. ???

Front:


Back:

]]> TurtlesAreCool 2012-11-21T02:31:41-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=57217&th=11650#msg_57217 Remember that steel is processed in a kiln where it's heated enough to fuse the granules together.
The design rules talk about "slump".. where the model can alter shape slightly as it's being heated.

The model was most likely placed in the kiln on it's face. You could try making the back slightly thicker, or add a few internal cross braces.. shouldn't require a whole lot.]]> stonysmith 2012-11-21T03:55:37-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=57218&th=11650#msg_57218
Anyway, I'll make a lattice inside and hope that works. I need to order this one again (and 5 more) before Christmas, so my experimentation time is over.]]> TurtlesAreCool 2012-11-21T03:58:32-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=57221&th=11650#msg_57221
Hmm - somehow, looking at the render made me think of adding fillets. Anyway, after I do that, I think I'll be in good shape.

]]> TurtlesAreCool 2012-11-21T05:08:32-00:00