# "open curves" in 3D-printing model **URL:** \ **Category:** 3D Printing\ **Tags:** 3dprinting, sketchup, mac, 3d, curves\ **Created:** [May 22, 2018, 2:56pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931 "2018-05-22T14:56:21Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![adolfrian](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/adolfrian/32/50623_2.png) [@adolfrian](https://forums.sketchup.com/u/adolfrian)\ **Post date:** [May 22, 2018, 2:56pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/1 "2018-05-22T14:56:22Z")
Hello everyone, I want to print a custom 3D model for a Raspberry Pi 3. When I export it to a .stl file and try to print, it shows me the error “73 curves are not closed” and the log file only shows Z coordinates… Have anyone heard about this before or can say me, how I can fix this? (SketchUp Pro 2018 for Mac OS) Thanks and best regards! [Case\_1\_bottom.skp](https://forums.sketchup.com/uploads/short-url/rmkilxtIFETsT6y0U8cSQUhuiCP.skp) (912.0 KB) And the log file: [Case1bottom.txt](https://forums.sketchup.com/uploads/short-url/TOyDp11njdvwuYCteSQUChXsQ4.txt) (1.1 KB) ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [May 22, 2018, 2:58pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/2 "2018-05-22T14:58:49Z")
Upload your SketchUp file so we can see what you’ve got and tell you exactly what you need to fix. ---
**Author:** ![adolfrian](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/adolfrian/32/50623_2.png) [@adolfrian](https://forums.sketchup.com/u/adolfrian)\ **Post date:** [May 22, 2018, 3:02pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/3 "2018-05-22T15:02:04Z")
Sorry, forgot this. Now it’s attached… ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [May 22, 2018, 3:07pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/4 "2018-05-22T15:07:31Z")
You’ve got lots of holes in your model. Some are pretty small like these on the bottom at the end of this slot. ![Screenshot%20-%205_22_2018%20%2C%2010_04_31%20AM](https://global.discourse-cdn.com/sketchup/original/3X/c/8/c822d71821c5d7efccee65d77136e1727f7fdce6.png) Others are huge. ![Screenshot%20-%205_22_2018%20%2C%2010_04_07%20AM](https://global.discourse-cdn.com/sketchup/original/3X/7/7/77223097d553a45532d777e25d71b256c725f5f5.png) You have to close up the holes and you need to include some thickness in areas like the top of the long part of the box. ---
**Author:** ![TheOnlyAaron](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/theonlyaaron/32/9436_2.png) [@TheOnlyAaron](https://forums.sketchup.com/u/TheOnlyAaron)\ **Post date:** [May 22, 2018, 3:08pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/5 "2018-05-22T15:08:47Z")
If you run Solid Inspector on it, you can see there are more than a few issues with it, rendering it unprintable: ![38%20AM](https://global.discourse-cdn.com/sketchup/original/3X/9/5/957a6bfd19fa08ffd8c278bc26a90f0226f1312f.png) ---
**Author:** ![adolfrian](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/adolfrian/32/50623_2.png) [@adolfrian](https://forums.sketchup.com/u/adolfrian)\ **Post date:** [May 22, 2018, 3:23pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/6 "2018-05-22T15:23:12Z")
Oh okay, thanks a lot! Is anyone interested to earn some bucks? I’ve 2 models with these errors and I’m a total SketchUp noob 😅 If someone can fix me these 2 files, I’ll be the happiest man on earth. I need this for a university project and tonight’s deadline… Here’s the second: [Case\_2\_bottom.skp](https://forums.sketchup.com/uploads/short-url/7xulDknVcbtwhyzfxp8uMaggm3x.skp) (956.3 KB) ---
**Author:** ![Box](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/box/32/235164_2.png) [@Box](https://forums.sketchup.com/u/Box)\ **Post date:** [May 22, 2018, 3:26pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/7 "2018-05-22T15:26:10Z")
Here’s one. It is only a guess because there is no way to tell the thickness the missing parts should be. I’m not interested in doing the other. [Case\_1\_bottombox.skp](https://forums.sketchup.com/uploads/short-url/jyDMtNwV2oq7uX5gUOUo3KtuGiO.skp) (510.1 KB) ---
**Author:** ![adolfrian](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/adolfrian/32/50623_2.png) [@adolfrian](https://forums.sketchup.com/u/adolfrian)\ **Post date:** [May 22, 2018, 3:51pm UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/8 "2018-05-22T15:51:35Z")
Thanks a lot! I would preciate, if someone can fix my second file… [Case\_2\_bottom.skp](https://forums.sketchup.com/uploads/short-url/7xulDknVcbtwhyzfxp8uMaggm3x.skp) (956.3 KB) ---
**Author:** ![system](https://global.discourse-cdn.com/sketchup/original/3X/f/2/f2a121500b085ed60806607a82720b092d800bb3.png) [@system](https://forums.sketchup.com/u/system)\ **Post date:** [August 22, 2018, 7:59am UTC](https://forums.sketchup.com/t/open-curves-in-3d-printing-model/68931/9 "2018-08-22T07:59:52Z")
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