# Box lid inner lip

**URL:** <https://discourse.shapr3d.com/t/box-lid-inner-lip/37238>\
**Category:** Modeling Questions\
**Created:** [March 26, 2025, 12:03am UTC](https://discourse.shapr3d.com/t/box-lid-inner-lip/37238 "2025-03-26T00:03:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mjb206](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mjb206/32/31497_2.png) [@mjb206](https://discourse.shapr3d.com/u/mjb206)\
**Post date:** [March 26, 2025, 12:03am UTC](https://discourse.shapr3d.com/t/box-lid-inner-lip/37238/1 "2025-03-26T00:03:12Z")

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Hello everyone  
Brand new to CAD and Shapr3d here. After a couple of tutorials, I threw together a quick box and lid to practice some of what I learned. As you can see, there is a lip on one side to enable the halves to fit together. I used offset to create the lip. However, this would be a very exact fit as there is no tolerance. I’m wondering the easiest way to either thin out the other box half walls to allow a bit of tolerance for fit. I’ve tried a couple of different things and so far, I haven’t found the solution. Thanks!

Edit: Jeez…I didn’t realize that it was the simplest of answers. I simply selected each inside face and narrowed the width by .2. For some reason that wasn’t obvious to me the first time around.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/5/0/50fb28738ef1bf551310d4356812ed6189d729fa.jpeg)

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**Author:** ![TheBum](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@TheBum](https://discourse.shapr3d.com/u/TheBum)\
**Post date:** [March 26, 2025, 1:55am UTC](https://discourse.shapr3d.com/t/box-lid-inner-lip/37238/2 "2025-03-26T01:55:29Z")

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Depending on the printer, you may be able to use a 0.1mm tolerance.

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<div class="post-metadata">

**Author:** ![mjb206](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/mjb206/32/31497_2.png) [@mjb206](https://discourse.shapr3d.com/u/mjb206)\
**Post date:** [March 26, 2025, 2:13am UTC](https://discourse.shapr3d.com/t/box-lid-inner-lip/37238/3 "2025-03-26T02:13:13Z")

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It’s going to be a Bambu Mini - I think I read that it’s tolerance is .02, but I’ll check