# Printing a circular void

**URL:** <https://forum.sovol3d.com/t/printing-a-circular-void/8897>\
**Category:** Sovol SV07 Plus\
**Created:** [October 20, 2025, 5:14pm UTC](https://forum.sovol3d.com/t/printing-a-circular-void/8897 "2025-10-20T17:14:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Dobrodrummer](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/dobrodrummer/32/4352_2.png) [@Dobrodrummer](https://forum.sovol3d.com/u/Dobrodrummer)\
**Post date:** [October 20, 2025, 5:14pm UTC](https://forum.sovol3d.com/t/printing-a-circular-void/8897/1 "2025-10-20T17:14:39Z")

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I have a clip I’m printing where I want to add a screw hole. Because of the clip overhangs & orientation, the hole is printing vertically.

In the photo, the blue lines indicate the layers. What’s interesting is, the green dimension is correct and matches what I have modeled, but the red dimension is printing in the horizontal direction and is shrinking my hole (I was expecting the opposite to happen)

Any suggestions on how I can fix this so I get a round hole? Why is my horizontal layer shrinking my hole?

 ![20251020_082506](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/7/7b919eb6bd8899061bd213b8555377148f11d8aa.jpeg)

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**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\
**Post date:** [October 20, 2025, 6:11pm UTC](https://forum.sovol3d.com/t/printing-a-circular-void/8897/2 "2025-10-20T18:11:53Z")

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Two things you can try..  
1st: you can reorientate the model to see if it prints better, maybe towards the green mark.  
2nd: add .05 to the horizontal compensation of the side that is affected.

[![](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/d/d19e2626af0645b4057c0cc1d2f8ac792242ae8b.jpeg "Dialing In Dimensional Accuracy With Horizontal Expansion") ](https://www.youtube.com/watch?v=NSCRJb2Al9w)

[![](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/3/3bc34b94dc481021873fa41f1caba2000e31ec9f.jpeg "Parts that fit odd shaped objects - 3D design for 3D printing pt4") ](https://www.youtube.com/watch?v=noYuQlQN8pw)

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<div class="post-metadata">

**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\
**Post date:** [October 20, 2025, 10:36pm UTC](https://forum.sovol3d.com/t/printing-a-circular-void/8897/3 "2025-10-20T22:36:58Z")

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Your model is VERY challenging for the FDM process. Sharp corners are VERY prone to over extrusion.

Make the wall where the hole is thicker and/or reduce the depth of of the countersink. The goal is to split the 135° turn into a 45 and a 90 with a short straight section between the bends.

Carefully tuning pressure advance will vastly improve the accuracy of sharp corners.

Orca Slicer has built in calibration routines for pressure advance. Also see:

> **[Introduction](https://ellis3dp.com/Print-Tuning-Guide/articles/pressure_linear_advance/introduction.html)**
>
> Ellis’ Print Tuning Guide