# Split Part Mesh Using Surface - Surface Name not appearing

**URL:** <https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000>\
**Category:** Bug Reports\
**Created:** [October 8, 2025, 12:38pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000 "2025-10-08T12:38:23Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![acal](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@acal](https://prepomax.discourse.group/u/acal)\
**Post date:** [October 8, 2025, 12:38pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/1 "2025-10-08T12:38:23Z")

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Hi everyone, in PPM version 2.3.0 I tried to use the tool “Split Part Mesh Using Surface”.

When you chose “Surface name” on the “Splitter surface reagion type” line, I guess a drop down list should appear with the surface names, but nothing appears.

The same happens for the “Base part region type” row. It is not possible to select the part name.

Only graphical selections work.

Regards

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [October 8, 2025, 12:52pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/2 "2025-10-08T12:52:31Z")

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I don’t have the “Surface name” option for Splitter Surface Region, only “Selection”. When it comes to Base Part Region, I can choose “Part name”, but the list appears only when I proceed to Splitter Surface Region and pick a surface there.

 ![split with surface](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/0/06b94d4581bd04e61d33cda85fdb87e76ea609c0.png)

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**Author:** ![acal](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@acal](https://prepomax.discourse.group/u/acal)\
**Post date:** [October 8, 2025, 1:35pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/3 "2025-10-08T13:35:21Z")

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I see this:

 ![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/8/87b100a61a8ebf2e36117cc7777234d57fad6a35.png)

The option to choose a Surface name appears only if you have a surface in the Model.

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [October 8, 2025, 8:36pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/4 "2025-10-08T20:36:27Z")

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You are right, the list of parts and the list of surfaces do not show correctly. In all Region rows, the names of the lists only appear if the lists have at least 1 item. If I have 1 part and create 1 surface, the lists do not appear.

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [October 9, 2025, 1:15pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/5 "2025-10-09T13:15:22Z")

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I have fixed the problem. It will be available in the next version.

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [October 15, 2025, 2:48pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/6 "2025-10-15T14:48:21Z")

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Can you confirm the bug is solved?

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<div class="post-metadata">

**Author:** ![acal](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@acal](https://prepomax.discourse.group/u/acal)\
**Post date:** [October 15, 2025, 3:43pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/7 "2025-10-15T15:43:31Z")

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![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/9/9bb88b62d6cca5782496840caa5af5fd407a5f33.jpeg)

Confirmed: in version 2.4.0 the feature works fine.

**THANKS!**

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<div class="post-metadata">

**Author:** ![acal](https://avatars.discourse-cdn.com/v4/letter/a/e79b87/32.png) [@acal](https://prepomax.discourse.group/u/acal)\
**Post date:** [October 15, 2025, 3:59pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/8 "2025-10-15T15:59:44Z")

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I was too quick, I did it in a hurry:

The selection works fine, but I get this error when trying to actually split the mesh.

 ![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/9/99f2de145a78547775a912a09098e09b7fdd742b.png)

With “Selection” the procedure works and the mesh is split.

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [October 16, 2025, 7:45am UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/12 "2025-10-16T07:45:40Z")

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I have fixed (hopefully) the problem. It will be integrated into the new developer version.

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [January 18, 2026, 6:09pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/13 "2026-01-18T18:09:45Z")

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I am closing this topic.

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [January 18, 2026, 6:09pm UTC](https://prepomax.discourse.group/t/split-part-mesh-using-surface-surface-name-not-appearing/3000/14 "2026-01-18T18:09:47Z")

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Closed on January 18, 2026, 6:09pm UTC


