# Some support structure related bugs and requests

**URL:** <https://forum.formlabs.com/t/some-support-structure-related-bugs-and-requests/3731>\
**Category:** Feature Requests & Ideas\
**Created:** [February 19, 2015, 4:39pm UTC](https://forum.formlabs.com/t/some-support-structure-related-bugs-and-requests/3731 "2015-02-19T16:39:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![phillip\_reiner](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/phillip_reiner/32/510_2.png) [@phillip\_reiner](https://forum.formlabs.com/u/phillip_reiner)\
**Post date:** [February 19, 2015, 4:39pm UTC](https://forum.formlabs.com/t/some-support-structure-related-bugs-and-requests/3731/1 "2015-02-19T16:39:33Z")

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Hi,

there are some bugs in Preform I have lately been struggling with:

- In general the Support structure should respect the the printing volume and should not cause the model to be shifted out of bounds.

- If you generate a support structure the generation may shift out of bounds (e.g. on top), once you try to change the parameters now, preform will give you the error, that you can´t do this, because the volumes is out of bounds. The only thing you can do now is reorient the whole part in order to break the support structure.

- Sometime support structure will still be created reaching out sideways and not be trimmed of.

- If you modify base thickness and Height above base before generation of the support structure they will go back to default ,after editing it.

- Sometimes support structure will be lost when opening the file on a different machine. (No idea how to reproduce at the moment…)

Some requests:

- When using multiple STLs in one file the support structure should also respect the other models.
- There should be not only the option of flat spacing, but also of what is the respected slope ratio.

Thank you for your attention.

Best,

Phillip

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**Author:** ![Paul\_Schommer](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/paul_schommer/32/2592_2.png) [@Paul\_Schommer](https://forum.formlabs.com/u/Paul_Schommer)\
**Post date:** [February 19, 2015, 5:58pm UTC](https://forum.formlabs.com/t/some-support-structure-related-bugs-and-requests/3731/2 "2015-02-19T17:58:37Z")

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Providing more control over the stuctures and orientation would be nice enhancements, but structures for multiple STL files would be excellent! I usually run a number of small parts at once, and being able to stack up the entire build volume would allow me to set the machine and let it go all day/night.

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**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\
**Post date:** [March 5, 2015, 5:58pm UTC](https://forum.formlabs.com/t/some-support-structure-related-bugs-and-requests/3731/3 "2015-03-05T17:58:38Z")

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Closed on March 5, 2015, 5:58pm UTC

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