# Specific Cups Question **URL:** https://forum.formlabs.com/t/specific-cups-question/29185 **Category:** General Discussion **Created:** [October 28, 2020, 10:01pm UTC](https://forum.formlabs.com/t/specific-cups-question/29185 "2020-10-28T22:01:11Z") **Posts on this page:** 1 **Showing post:** 7
### Author: ![rkagerer](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@rkagerer](https://forum.formlabs.com/u/rkagerer) #### Post date: [October 29, 2020, 7:54pm UTC](https://forum.formlabs.com/t/specific-cups-question/29185/7 "2020-10-29T19:54:09Z")
Glad you got it resolved. I really do think the smaller holes would be fine without vents if you choose to test out more iterations of your design in the future. @Pankl_3D underscored a good point - if you need dimensional accuracy in the Z direction (i.e. up the height of the part) then you either want to print on supports, or tweak the “Z-Compression Correction” advanced setting in Preform. As he said, the first several layers come out squished. I have a diagram [illustrating that here](http://forum.formlabs.com/t/babyform2-3d-print-your-3d-printer/13823/2). If printing directly on the base you might also notice some bleed around the edges. I’ve found that can usually be reduced or eliminated by adjusting the Z Fine Tuning on the printer. But lifting it onto supports eliminates both of those issues and your cupping in one stroke, and gives you a nice, chamfered raft to ease removal. (Personally I like printing parts like this on the base, but it can take a bit of tweaking to dial in acceptable results). --- _[View the full topic](https://forum.formlabs.com/t/specific-cups-question/29185)._