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Build Your Own SLA/SLS A forum dedicated to helping you build your own SLA/SLS-based 3d printer 2015-03-20T02:59:31-04:00 http://www.buildyourownsla.com/forum/feed.php?f=11&t=2775 2015-03-20T02:59:31-04:00 2015-03-20T02:59:31-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=2775&p=9023#p9023 <![CDATA[Re: What's wrong with this prints?!?]]> This was my case 2 days ago:

prob.jpg


And after pigmentation (check the holes in the head)
unnamed (2).jpg

unnamed (1).jpg

Statistics: Posted by aurelm — Fri Mar 20, 2015 2:59 am


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2015-03-19T05:13:54-04:00 2015-03-19T05:13:54-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=2775&p=8969#p8969 <![CDATA[Re: What's wrong with this prints?!?]]>
Yeah I know that now :\
In these days I have done a lot of experiments. Now I have done some pretty good print.

The resing is good but not soo good... as you said it's a bit translucent and it took me long time to find the correct (or maybe it's bettere to say a quite balance) calibration...

Last night print. 0.1mm layer height.
WP_20150319_09_56_57_Pro.jpg


At the moment I'm printing the same ring at 0.05mm.
From now I'll post some photo in the other section. I'll open a new thread :D

Statistics: Posted by odino — Thu Mar 19, 2015 5:13 am


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2015-03-19T02:19:26-04:00 2015-03-19T02:19:26-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=2775&p=8966#p8966 <![CDATA[Re: What's wrong with this prints?!?]]> Also the resin seems to be translucent and that is not ok as the light will not only cure the first layer but anywhere under. If the resin glows when printing the prints will sag underneath. The shape must be very clear on the surface layer.

Statistics: Posted by aurelm — Thu Mar 19, 2015 2:19 am


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2015-03-13T18:10:43-04:00 2015-03-13T18:10:43-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=2775&p=8803#p8803 <![CDATA[What's wrong with this prints?!?]]> My first attempt to create a DLP 3D printer was a bottom-up.
But me and my friends give up to that design.

Now we are building a top dow style.
We are printing the first test object.
The Projector is a Optoma hd200x DLP
Fun To Do castable resin (color red).

WP_20150313.jpg


I have try to set the brightness to 25, the contrast to 50, 40, 30.
The result are even worse...

layer height = 0.1mm
Litf = 2mm
first layer time = 4sec
others layer = 2sec

What do you think?

Statistics: Posted by odino — Fri Mar 13, 2015 6:10 pm


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