| First FUD Print - Unacceptable :( [message #48950] Sat, 26 May 2012 00:24 UTC |
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Hi guys,
This is my first time using Shapeways. I'd been really impressed with the pictures I'd seen of the frosted (or fast) ultra detail so I was excited to get my first model printed.
The part that got here today seemed to have no wax on it and it wasn't greasy when it got here, so I don't think there's any problems in that regard requiring cleaning. I sort of understand how support material works as well, and the finish on my part seems to be a bad print / bad calibration and not related to the support material.
As you can see, the finish is smooth/clear in some areas and very rough in random places on the part which in several areas has ruined the subtle details. The larger raised circular section has a recess at the top, and this rough texture fills it. I've tried cleaning the part with warm water and soap but haven't had any luck. I even slid the edge of a pin on the rough areas to see if it would come off, and it won't, and because of the small nature of the part it's impossible to sand this away.
Let me know if this just looks a bad print, or what your thoughts are. I'd really hate to think I just wasted my money.
I'd really like to have this reprinted as it doesn't look like I feel it should.. going from smooth surface to rough/textured in places that it shouldn't. This part was intended for casting, and as it stands I can't use it because the casting will reflect this texture, which in some cases even looks like it's heaped up in some places (and fuzzy) ruining the original geometry.
Sadly, the bottom of the part which isn't that important is the side that didn't suffer from this... go figure!
-Matt
P.S. Also referencing this thread as well, as his reprinted part came out perfect:
http://www.shapeways.com/forum/index.php?t=msg&th=7124&a mp;start=0&




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| Re: First FUD Print - Unacceptable :( [message #48960 is a reply to message #48950 ] Sat, 26 May 2012 07:23 UTC |
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The frosting/texture you are seeing in the interaction between the plastic and the support wax during the build. It is an inherent quality of the machines that run the frosted detail materials.
I've found the best way of dealing with the texture is to scrape it off with a sharp scalpel.
[Updated on: Sat, 26 May 2012 07:24 UTC] Bill Bedford
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| Re: First FUD Print - Unacceptable :( [message #48963 is a reply to message #48960 ] Sat, 26 May 2012 09:14 UTC |
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Hi Bill,
Thanks for the info. Almost every picture I've seen of the FUD material has never looked this bad, so I'm very disappointed. As it was a solid part with no undercuts I figured the part would look great--but only the bottom is perfectly smooth/clear.
I was wondering if there is any way to dissolve or minimize this on the surface, possibly dabbing some acetone to slightly melt/smooth it as sanding is out of the question. At this point, even regaining the transparent look to some degree would be nice, even though the part is already ruined in my view.
Is there a high probability this part being reprinted would look like this again? I've seen much larger (and more detailed) models printed with FUD where this raised (almost snow-like) texture is totally absent. This print is only about 3 cm wide.
[Updated on: Sat, 26 May 2012 09:15 UTC]
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| Re: First FUD Print - Unacceptable :( [message #48980 is a reply to message #48963 ] Sat, 26 May 2012 20:56 UTC |
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| dragn_ink wrote on Sat, 26 May 2012 09:14 | I was wondering if there is any way to dissolve or minimize this on the surface, possibly dabbing some acetone to slightly melt/smooth it as sanding is out of the question. At this point, even regaining the transparent look to some degree would be nice, even though the part is already ruined in my view.
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If you use any sort of solvent you risk making the transparent surfaces frosted. As I said the best way of dealing with this is by gently scraping the rough surface with the scalpel blade. This will give you a translucent surfaace, You can restore the transparency by giving the piece a thin coat of gloss varnish.| Quote: |
Is there a high probability this part being reprinted would look like this again? I've seen much larger (and more detailed) models printed with FUD where this raised (almost snow-like) texture is totally absent. This print is only about 3 cm wide.
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Until shapeways decide to allow us to choose the orientation of pieces in the build you will have a 2 out of 3 chance of something similar happening.
[Updated on: Sat, 26 May 2012 20:57 UTC] Bill Bedford
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| Re: First FUD Print - Unacceptable :( [message #48981 is a reply to message #48980 ] Sat, 26 May 2012 21:17 UTC |
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It's pretty obvious that the right side of the part was the 'bottom' in the printer. Because there is no scale reference I can't say whether the frosted areas are worse than normal or not. If your piece is less than 1cm left-right in the photo, I would say the texture is normal. If your piece is larger then I would recommend you request a reprint. There was an announcement a few months back that specified orientation was in the works. It can't come soon enough for us fans of FUD.
Earl Grey, hot.
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