# Can't edit step file

**URL:** <https://discourse.shapr3d.com/t/cant-edit-step-file/26342>\
**Category:** Modeling Questions\
**Created:** [June 18, 2023, 4:30am UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342 "2023-06-18T04:30:56Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ptegler](https://avatars.discourse-cdn.com/v4/letter/p/c0e974/32.png) [@ptegler](https://discourse.shapr3d.com/u/ptegler)\
**Post date:** [June 18, 2023, 4:30am UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342/1 "2023-06-18T04:30:56Z")

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I have a step file that shapr3d cannot remove a object from. (See attached file)  
[qqqqqqq.step](https://discourse.shapr3d.com/uploads/short-url/tXhvZ1SWGZAnHK7nrjWuIQ1ZZuk.step) (2.6 MB)  
FRONT you’re looking at the outputs of the ‘airhorn’  
from the TOP view you will see a coin sized artifact that bisects a mount ear. That disk cannot be removed, move, deleted, resized etc in Shapr3d.  
In contrast Onshape has no problem selecting it as a single object, moving it and/or deleting it.  
How in Shapr3D can this disk (artifact) be removed from this airhorn assy?

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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:** [June 18, 2023, 5:11am UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342/2 "2023-06-18T05:11:03Z")

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It can be deleted. I gave the disc and the horn different colors just to seen more easily. Then I moved the disc down and deleted it. I could have left it in place and deleted it as well.

[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/2/f252af1c87435806ba08aa12df34793ce1418533.mov](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/f/2/f252af1c87435806ba08aa12df34793ce1418533.mov)

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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:** [June 18, 2023, 5:25am UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342/3 "2023-06-18T05:25:41Z")

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This STEP file is quite odd as it is hollow as far as being imported in Shapr3D. It is not a solid body. I’m unable to do a simple extrusion of the face of the mounting flange. I used Split Body to slice it in two areas to see inside.

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**Author:** ![ptegler](https://avatars.discourse-cdn.com/v4/letter/p/c0e974/32.png) [@ptegler](https://discourse.shapr3d.com/u/ptegler)\
**Post date:** [June 18, 2023, 6:24am UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342/4 "2023-06-18T06:24:27Z")

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double clicking to select it I get the whole air horn selected not just the disk.  
Even from the items menu I can not select the disk by itself  
ptegler

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<div class="post-metadata">

**Author:** ![ptegler](https://avatars.discourse-cdn.com/v4/letter/p/c0e974/32.png) [@ptegler](https://discourse.shapr3d.com/u/ptegler)\
**Post date:** [June 18, 2023, 3:19pm UTC](https://discourse.shapr3d.com/t/cant-edit-step-file/26342/5 "2023-06-18T15:19:23Z")

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oh now that’s weird! I just downloaded and re-imported that step file I linked above, and THAT copy allowed me to delete the disk! I’d just tried it on my Ipad and the file worked as described above where I had been working on my windows desktop. I sync’ed and fired up my ipad and had the same non-op situation. so DNL’ed the copy above and it works as expected. VERY odd.