# Smoothing out top line **URL:** \ **Category:** Modeling Questions\ **Created:** [July 1, 2025, 6:20am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603 "2025-07-01T06:20:12Z")\ **Posts on this page:** 13\ **Page:** 1

**Author:** ![dizzybone](https://avatars.discourse-cdn.com/v4/letter/d/977dab/32.png) [@dizzybone](https://discourse.shapr3d.com/u/dizzybone)\ **Post date:** [July 1, 2025, 6:20am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/1 "2025-07-01T06:20:12Z")

So I’m working on this design, and I have it round on the top oart. Im trying to figure out how to completely make it smooth with that line you’ll see in the pic. ![20250701_005852](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/9/d/9d2415e0b1854b40947cfa1ba970ea7b04134d78.jpeg) ---

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\ **Post date:** [July 1, 2025, 6:32am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/2 "2025-07-01T06:32:16Z")

Where? Which line? ---

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\ **Post date:** [July 1, 2025, 7:11am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/3 "2025-07-01T07:11:26Z")

Look at the part in visualization and see if the line is still there. If it is not there, it represents the end of the curve where it flattens out at the top. That’s an artifact of direct modeling and will not be in the rendered or exported model. (If it is the line I think you mean) ---

**Author:** ![dizzybone](https://avatars.discourse-cdn.com/v4/letter/d/977dab/32.png) [@dizzybone](https://discourse.shapr3d.com/u/dizzybone)\ **Post date:** [July 1, 2025, 7:27am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/4 "2025-07-01T07:27:09Z")

Yeah, the line. I did pook at it and doesn’t show it in visualization, but i can feel it when it’s printed ---

**Author:** ![jean-philippe2](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/jean-philippe2/32/27353_2.png) [@jean-philippe2](https://discourse.shapr3d.com/u/jean-philippe2)\ **Post date:** [July 1, 2025, 7:51am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/5 "2025-07-01T07:51:47Z")

Hi Can you share the shapr file ? Only the part of your screenshot ---

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\ **Post date:** [July 1, 2025, 8:09am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/6 "2025-07-01T08:09:58Z")

If you think thats going to be an issue don’t connect circle to a line. Create the sketch with SPLINE and revolve. ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/1/6/167760def2adc37591a75359140b7097c694e13b.jpeg) Also if you can feel it in the printed pieces that might be the steps of each layer. ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/d/e/de5bae7593d310f39dd7fe1397921764aee91820.jpeg) ---

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\ **Post date:** [July 2, 2025, 4:40am UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/7 "2025-07-02T04:40:28Z")

Layer height. ---

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\ **Post date:** [July 2, 2025, 3:45pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/8 "2025-07-02T15:45:42Z")

Some slicers support layer height changes in zones now. I thought I saw that in Bambu slicer notes recently. ---

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\ **Post date:** [July 2, 2025, 4:54pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/9 "2025-07-02T16:54:38Z")

Variable Layer Height? > **[Variable Layer Height](https://wiki.bambulab.com/en/software/bambu-studio/adaptive-layer-height)** > > explain the function of variable layer height Tried it long time ago, it introduced some weird artifacts so I stopped using it but that was when P1P was first introduced so few years ago. Might have gotten better now? ---

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\ **Post date:** [July 2, 2025, 4:57pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/10 "2025-07-02T16:57:05Z")

I thought I read something about it in the last firmware notes I read a month ago. ---

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\ **Post date:** [July 2, 2025, 5:01pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/11 "2025-07-02T17:01:35Z")

Personally if I need to reduce layer height as much as possible I just use a smaller nozzle. Or go clean up the resin printer. ---

**Author:** ![BKE](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/bke/32/31690_2.png) [@BKE](https://discourse.shapr3d.com/u/BKE)\ **Post date:** [July 2, 2025, 5:05pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/12 "2025-07-02T17:05:34Z")

Some printers/slicers does it ‘backwards’, a smaller nozzle gives a thicker minimum layer… ---

**Author:** ![SCALEMODEL](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)\ **Post date:** [July 2, 2025, 5:54pm UTC](https://discourse.shapr3d.com/t/smoothing-out-top-line/38603/13 "2025-07-02T17:54:58Z")

Lol while OP is trying to make it smoother, I’m trying to make it pointiest. ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/c/5/c52e118a2fbc554dac9b555f02effec7b0efbe45.jpeg)