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Which model orient is better for printer? [message #82831] Thu, 09 January 2014 02:07 UTC Go to next message
avatar Freakazoitt  is currently offline Freakazoitt
Messages: 69
Registered: July 2013
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Which model orientation is better for printing in WSF and FD:
horizontal:

HHHHHHHHHHHHHHH

or vertical:

H
H
H
H
H
H
H
H

[Updated on: Thu, 09 January 2014 02:07 UTC]

Re: Which model orient is better for printer? [message #82837 is a reply to message #82831 ] Thu, 09 January 2014 03:36 UTC Go to previous messageGo to next message
avatar stannum  is currently offline stannum
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You can't select orientation so...
Re: Which model orient is better for printer? [message #82840 is a reply to message #82831 ] Thu, 09 January 2014 03:59 UTC Go to previous messageGo to next message
avatar Freakazoitt  is currently offline Freakazoitt
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I can change it in 3d program before uploading.
Re: Which model orient is better for printer? [message #82843 is a reply to message #82831 ] Thu, 09 January 2014 04:14 UTC Go to previous messageGo to next message
avatar Freakazoitt  is currently offline Freakazoitt
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Or it does'nt sence and SW specialists can rotate model as they want for better printing?
Re: Which model orient is better for printer? [message #82844 is a reply to message #82843 ] Thu, 09 January 2014 04:34 UTC Go to previous messageGo to next message
avatar stannum  is currently offline stannum
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They can and will rotate.
Re: Which model orient is better for printer? [message #82852 is a reply to message #82844 ] Thu, 09 January 2014 08:31 UTC Go to previous messageGo to next message
avatar AmLachDesigns  is currently offline AmLachDesigns
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Also worth noting is that it is not just horizontal and vertical: your model will be rotated to minimise the 'Oriented Bounding' box if at all possible..

In my experience this can cause stepping. A model that I thought would be printed either horizontally or vertically was in fact printed at a slight angle to horizontal because of this rotation.
Re: Which model orient is better for printer? [message #84836 is a reply to message #82831 ] Thu, 13 February 2014 15:56 UTC Go to previous messageGo to next message
avatar mfoster3  is currently offline mfoster3
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Registered: December 2012
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The printing techs reorient models in order to get the best "yield" per print job. They gang many different orders for the same material into a single print job and they reorient the various models to optimize the use of the material in the print volume. So even if you submit a model of say a gear that has the gear profile in the XY plane (generally considered to be the print plane) it may be reoriented into the XZ or YZ plane in order to achieve better job utilization. The Z axis or layer step axis is in my experience less accurate because it is not as fine as the XY laser scan layer. As a result features that you want to be round such as holes can come out oval.


a voxel is a three dimensional pixel
Re: Which model orient is better for printer? [message #84881 is a reply to message #84836 ] Fri, 14 February 2014 01:14 UTC Go to previous messageGo to next message
avatar Fireball_Modelworks  is currently offline Fireball_Modelworks
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Registered: November 2012
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Shapeways keeps hinting that user-selectable print orientation is coming, but it's still not here yet. I'd gladly pay extra for that option, but I don't know how much they would have to charge to make it feasible.


http://www.fireballmodels.info
Re: Which model orient is better for printer? [message #84908 is a reply to message #84881 ] Fri, 14 February 2014 15:09 UTC Go to previous message
avatar mfoster3  is currently offline mfoster3
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I have requested and would gladly pay a reasonable surcharge for an orientation selection option.

I suspect that either Shapeways and/or the printer vendors are working on software to automate optimization of print volume utilization. As the volume of printed parts climbs this should get easier as the optimization can span several print volumes. It would be both an interesting and challenging problem to work on.


a voxel is a three dimensional pixel

 
   
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