# 3DP Bottom thickness bug?

**URL:** https://forum.snapmaker.com/t/3dp-bottom-thickness-bug/23021
**Category:** Snapmaker Luban
**Created:** [December 28, 2021, 6:11pm UTC](https://forum.snapmaker.com/t/3dp-bottom-thickness-bug/23021 "2021-12-28T18:11:21Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![toejough](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/toejough/32/10659_2.png) [@toejough](https://forum.snapmaker.com/u/toejough)
#### Post date: [December 28, 2021, 6:11pm UTC](https://forum.snapmaker.com/t/3dp-bottom-thickness-bug/23021/1 "2021-12-28T18:11:21Z")

</div>

Anyone else notice their bottom thickness is wrong? Printing in higher quality modes seems fine, but in default “fast” settings:

bottom: 0.8mm  
layer height: 0.24mm  
initial layer height: 0.28mm

… I end up with 6 bottom layers in luban. even rounding up without a thicker initial layer height, I should only have 4 bottom layers.

After bumping up to 0.4mm layer height, I still have 6 bottom layers. Is that a programmed minimum somewhere in Luban, perhaps? Am I missing a setting somewhere?

 ![Screen Shot 2021-12-28 at 1.10.32 PM](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/e/9/e950605d362916b21b10ec072b8dc662f34a4d61.jpeg)  
 ![Screen Shot 2021-12-28 at 1.04.25 PM](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/5/6/56477c317abef17d6f52cb376a4af9776762a72a.png)

---

<div class="post-metadata">

### Author: ![SnappyBoi](https://avatars.discourse-cdn.com/v4/letter/s/f0a364/32.png) [@SnappyBoi](https://forum.snapmaker.com/u/SnappyBoi)
#### Post date: [January 22, 2022, 8:20pm UTC](https://forum.snapmaker.com/t/3dp-bottom-thickness-bug/23021/2 "2022-01-22T20:20:23Z")

</div>

I have been having the same issue. I am trying to print a model with only 1 bottom layer and have not been able to do so in Luban. I ended up using Cura.