# Guitar Neck: MatchSrf Between a loft and a trimmed Surface?

**URL:** <https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261>\
**Category:** Rhino\
**Tags:** windows\
**Created:** [July 11, 2021, 1:45pm UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261 "2021-07-11T13:45:04Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![AnkaCustom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ankacustom/32/554590_2.png) [@AnkaCustom](https://discourse.mcneel.com/u/AnkaCustom)\
**Post date:** [July 11, 2021, 1:45pm UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/1 "2021-07-11T13:45:04Z")

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Hello Folks, i have a loft and a trimmed surface that i got as a result of using XNurbs, but there’s gaps and not so smooth transitions when using Zebra. Can you MatchSrf These 2 different types of Surfaces? What would you reccomend to do in this case? The red surface is trimmed (XNurbs) and the Blue is a Loft. Thank you  
[Jarius Neck 4 String.3dm](https://discourse.mcneel.com/uploads/short-url/cr7W8XigaA9egmkM8ypf57k8p4M.3dm) (853.6 KB)

 ![1](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/6/e/f/6efe8aa6de2e1761103e5549399a3b6f868528a0.png)

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**Author:** ![davidcockey](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/davidcockey/32/732604_2.png) [@davidcockey](https://discourse.mcneel.com/u/davidcockey)\
**Post date:** [July 12, 2021, 1:21am UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/2 "2021-07-12T01:21:39Z")

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You can MatchSrf the untrimmed edge of a surface to the trimmed edge of another surface, but you cannot use MatchSrf to modify a surface along a trimmed edge.

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**Author:** ![grbl9789](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/grbl9789/32/600793_2.png) [@grbl9789](https://discourse.mcneel.com/u/grbl9789)\
**Post date:** [July 12, 2021, 1:31am UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/3 "2021-07-12T01:31:47Z")

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Blendsrf possibly?

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<div class="post-metadata">

**Author:** ![AnkaCustom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ankacustom/32/554590_2.png) [@AnkaCustom](https://discourse.mcneel.com/u/AnkaCustom)\
**Post date:** [July 12, 2021, 4:12am UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/4 "2021-07-12T04:12:24Z")

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Thanks David. If i still can’t do the Match, what could be happening?

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**Author:** ![AnkaCustom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ankacustom/32/554590_2.png) [@AnkaCustom](https://discourse.mcneel.com/u/AnkaCustom)\
**Post date:** [July 12, 2021, 4:12am UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/5 "2021-07-12T04:12:44Z")

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Thanks Greg, ok i will try that.

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<div class="post-metadata">

**Author:** ![davidcockey](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/davidcockey/32/732604_2.png) [@davidcockey](https://discourse.mcneel.com/u/davidcockey)\
**Post date:** [July 12, 2021, 12:32pm UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/6 "2021-07-12T12:32:27Z")

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> [@AnkaCustom](#):
>
> Thanks David. If i still can’t do the Match, what could be happening?

The surface created by XNURBS has trimmed edges so it cannot be modified by MatchSrf.

You can trim the red surface and then use BlendSrf as suggested by Greg.

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**Author:** ![pascal](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pascal/32/479395_2.png) [@pascal](https://discourse.mcneel.com/u/pascal)\
**Post date:** [July 12, 2021, 9:01pm UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/7 "2021-07-12T21:01:42Z")

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Hello - the blue surface is currently trimmed (Turn on points to see this) If you `ShrinkTrimmedSrf` you will be able to match the blue to the red.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/e/6/1/e6192e1388e40da96cdb2cde1970bbbb2d9a50f6.png)

-Pascal

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<div class="post-metadata">

**Author:** ![AnkaCustom](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/ankacustom/32/554590_2.png) [@AnkaCustom](https://discourse.mcneel.com/u/AnkaCustom)\
**Post date:** [July 15, 2021, 6:38pm UTC](https://discourse.mcneel.com/t/guitar-neck-matchsrf-between-a-loft-and-a-trimmed-surface/127261/8 "2021-07-15T18:38:59Z")

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Hey Pascal! Thankyou very much. I did it and it worked!!