# Subtracting Portions of an Object
**URL:** https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756
**Category:** Modeling Questions
**Created:** [June 9, 2022, 12:00am UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756 "2022-06-09T00:00:19Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@assyrian47](https://discourse.shapr3d.com/u/assyrian47)
#### Post date: [June 9, 2022, 12:00am UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756/1 "2022-06-09T00:00:19Z")
[Enclosure 2.shapr](https://discourse.shapr3d.com/uploads/short-url/eO9SDSMjeLNsQ6yHpv5bP2cgnIS.shapr) (1.4 MB)
Can someone provide some assistance in teaching how to remove the cover from the enclosure. I have tried using the subtract but have not had any luck. The goal is to separate the top so a final object is an enclosure where the top can be removed. Thanks in advance…
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### Author:  [@welshsteve](https://discourse.shapr3d.com/u/welshsteve)
#### Post date: [June 9, 2022, 1:50am UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756/2 "2022-06-09T01:50:29Z")
I’m not sure exactly what you wish to do. I took a look at the model and the cover is separate so should be easily removed.
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### Author:  [@TheBum](https://discourse.shapr3d.com/u/TheBum)
#### Post date: [June 9, 2022, 4:05am UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756/3 "2022-06-09T04:05:17Z")
You can define a construction plane where you want the top cut off and then perform a Split Body operation.
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### Author:  [@assyrian47](https://discourse.shapr3d.com/u/assyrian47)
#### Post date: [June 9, 2022, 10:39am UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756/4 "2022-06-09T10:39:27Z")
The top is part of the original step file. It contains 40 parts of the enclosure and the top. The use of the Construction plane was the key. Many thanks for the replies.
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### Author:  [@welshsteve](https://discourse.shapr3d.com/u/welshsteve)
#### Post date: [June 9, 2022, 3:49pm UTC](https://discourse.shapr3d.com/t/subtracting-portions-of-an-object/19756/5 "2022-06-09T15:49:32Z")
When I first read your post I read the question:
“Can someone provide some assistance in teaching how to remove the **cover** from the enclosure” so I assumed you wanted to remove the **cover**.
Further in the post I read:
“The goal is to separate the **top** so a final object is an enclosure where the **top** can be removed” so I was a little confused as to what you actually wanted to do.
Had I realised you wanted to remove the top part of the enclosure then I would have come up with several suggestions.