# Add drain hole

**URL:** <https://forum.formlabs.com/t/add-drain-hole/26813>\
**Category:** Feature Requests & Ideas\
**Created:** [February 29, 2020, 8:12pm UTC](https://forum.formlabs.com/t/add-drain-hole/26813 "2020-02-29T20:12:42Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![leonhart88](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/leonhart88/32/19153_2.png) [@leonhart88](https://forum.formlabs.com/u/leonhart88)\
**Post date:** [February 29, 2020, 8:12pm UTC](https://forum.formlabs.com/t/add-drain-hole/26813/1 "2020-02-29T20:12:42Z")

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It would be great if we could add very small drain holes in Preform to solve cupping issues without having to go back into our CAD package and change the part. Specifically because this isn’t really a CAD or part design issue, but more of an accommodation for the nature of inverted SLA. It’s not really desirable to have to create a new version of the CAD just to print it.

So my request is to be able to add small holes to models in Preform.

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_[View the full topic](https://forum.formlabs.com/t/add-drain-hole/26813)._