# Help / challenge / torture test for Shapr3d

**URL:** <https://discourse.shapr3d.com/t/help-challenge-torture-test-for-shapr3d/16465>\
**Category:** Modeling Questions\
**Created:** [December 21, 2021, 11:29pm UTC](https://discourse.shapr3d.com/t/help-challenge-torture-test-for-shapr3d/16465 "2021-12-21T23:29:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![nico\_h](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/nico_h/32/1790_2.png) [@nico\_h](https://discourse.shapr3d.com/u/nico_h)\
**Post date:** [December 21, 2021, 11:29pm UTC](https://discourse.shapr3d.com/t/help-challenge-torture-test-for-shapr3d/16465/1 "2021-12-21T23:29:21Z")

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I designed a microphone head as a prop, probably overly complicated and I want to print it on my FDM 3d printer. However, i need to merge two parts (mesh and head) before i can export to STL. i have tried on my 10.5 iPad pro from years ago and from my mac mini, but neither work, they seem to give up after a long while.

on my ipad selecting the mesh plus any other part take a long time.  
the mesh was created by creating a line, lofting a circle along that path, and then copying that extrusion every 5 degree until i had a 120 degree sector.  
the horizontal tubes were created by drawing a 1mm circle along the original lofting line and then revolving the external semi circle 120 deg. then I merged all these tubes and copied it twice for the other sectors and then merging the 3 sections. selecting the thirds was taking a while and even longer when selecting the mesh.

Are the parts actually contiguous enough to merge?  
Can any of your computer do it?

Link is here [Dropbox - Shapr Public - Simplify your life](https://www.dropbox.com/sh/bz1pco2u1e6098y/AADKy5t3Ja2bU3NFlTMklklsa?dl=0)

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**Author:** ![nico\_h](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/nico_h/32/1790_2.png) [@nico\_h](https://discourse.shapr3d.com/u/nico_h)\
**Post date:** [December 21, 2021, 11:52pm UTC](https://discourse.shapr3d.com/t/help-challenge-torture-test-for-shapr3d/16465/2 "2021-12-21T23:52:13Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/4/434069448d90af4225e006453a9b8e3dd2f2f1da.jpeg)

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**Author:** ![TigerMike](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/tigermike/32/32650_2.png) [@TigerMike](https://discourse.shapr3d.com/u/TigerMike)\
**Post date:** [December 22, 2021, 12:33am UTC](https://discourse.shapr3d.com/t/help-challenge-torture-test-for-shapr3d/16465/3 "2021-12-22T00:33:30Z")

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I checked out your file. The ‘mesh’ part, I assume is **Body 05 (2)** is incredibly detailed which is fine however may be problematic for 3D printing (meaning loss of detail).

The first part of the video shows the bodies I selected in Shapr3D. I didn’t bother to do a **Union**. I exported those visible bodies as an STL file for 3D printing. It weighs in at a whopping 321mb. I have a Prusa and put it in my slicer and it would print just fine. Note that you may lose a lot of detail from the ‘mesh’ part of the mic. I set the slicer to 0.10mm layer height with 15% infill and I have the std 0.4mm nozzle. Bottom line, it will print.