# 'Shell' command does not print

**URL:** <https://discourse.mcneel.com/t/shell-command-does-not-print/12049>\
**Category:** Rhino for Mac\
**Created:** [October 1, 2014, 4:56am UTC](https://discourse.mcneel.com/t/shell-command-does-not-print/12049 "2014-10-01T04:56:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JimT2](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@JimT2](https://discourse.mcneel.com/u/JimT2)\
**Post date:** [October 1, 2014, 4:56am UTC](https://discourse.mcneel.com/t/shell-command-does-not-print/12049/1 "2014-10-01T04:56:32Z")

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I am trying to create a small, rectangular container so I make a block and use the _shell_ command to hollow it out. I pick the top surface to remove and set the wall thickness to 2mm. Everything works perfectly on the screen and the resulting container is what I am looking for. I export this to STL binary file and send it to my MakerBot Replicator 2X printer. The file shows up as a container on the printer dialog box also. When I print the container though, it is solid. Basically, I have a 1 mm wall on all 6 sides and a 10% fill of the complete interior.

I have redrawn this and re-exported it several times with the same results. It appears that the ‘shell’ command is working on screen but the results are not being exported with the STL file.

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**Author:** ![Helvetosaur](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/helvetosaur/32/635974_2.png) [@Helvetosaur](https://discourse.mcneel.com/u/Helvetosaur)\
**Post date:** [October 1, 2014, 8:21am UTC](https://discourse.mcneel.com/t/shell-command-does-not-print/12049/2 "2014-10-01T08:21:49Z")

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Can you post the Rhino plus the stl file in question as well as your export settings? Here your procedure works fine. --Mitch

[Shell.zip](https://sea3.discourse-cdn.com/mcneel/uploads/default/12443/51b40352a5384883.zip) (398 Bytes)