![extrusion - Holes/ missing layers (after retraction) in 3d printed objects - 3D Printing Stack Exchange extrusion - Holes/ missing layers (after retraction) in 3d printed objects - 3D Printing Stack Exchange](https://i.stack.imgur.com/tSNwG.png)
extrusion - Holes/ missing layers (after retraction) in 3d printed objects - 3D Printing Stack Exchange
![I have these little holes all over my print, that's not the seam, are they caused by the setting retract before outer walls, if not can you pleas help me to get I have these little holes all over my print, that's not the seam, are they caused by the setting retract before outer walls, if not can you pleas help me to get](https://preview.redd.it/vnmj3wsaw3961.jpg?auto=webp&s=d386bd008e04e214f05d5e221922901fbae534c5)
I have these little holes all over my print, that's not the seam, are they caused by the setting retract before outer walls, if not can you pleas help me to get
vertical versus horizontal holes - Improve your 3D prints - UltiMaker Community of 3D Printing Experts
![Problems when printing vertical holes - Improve your 3D prints - UltiMaker Community of 3D Printing Experts Problems when printing vertical holes - Improve your 3D prints - UltiMaker Community of 3D Printing Experts](https://content.invisioncic.com/ultimake/monthly_2018_09/91C52F09-47CE-419B-A719-9BF51FB6F5D2.jpeg.601ca5774b336fc4da8d102ae4f8650b.jpeg)
Problems when printing vertical holes - Improve your 3D prints - UltiMaker Community of 3D Printing Experts
![pla - Will my Duplicator i3 be able to print this hole in the vertical wall without infill? - 3D Printing Stack Exchange pla - Will my Duplicator i3 be able to print this hole in the vertical wall without infill? - 3D Printing Stack Exchange](https://i.stack.imgur.com/UjfZK.jpg)