# Suggestions to approach this shape?

**URL:** <https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008>\
**Category:** Modeling Questions\
**Created:** [March 22, 2021, 4:09pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008 "2021-03-22T16:09:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Bibbinator](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/bibbinator/32/4302_2.png) [@Bibbinator](https://discourse.shapr3d.com/u/Bibbinator)\
**Post date:** [March 22, 2021, 4:09pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008/1 "2021-03-22T16:09:53Z")

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Hi,  
I have a shape I’ve tried to make with a few approaches and so far I haven’t managed to make it. Attempting to explain…

Problem: I have a round rod that I’m designing a sleeve for in Shap3r. The idea is that the shape has a hole 1 mm larger than the rod. And there is a plastic tab which is wedged into another hole where a screw goes. The more the screw goes in causes the tab to push into the hole to grip the rod.

In the screenshot I used a hexagon with an arch shape to project cutout 3 sides to make a tab. But I can’t then make it wedge shaped on the inside edge.

Any suggestions how to achieve the desired result? I could make a wedge alone maybe and then boolean/merge it into the shape maybe?

 ![IMG_B7BAE9050E8F-1.jpeg](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/2/21052ed13203b27b7994150606d865dd132d731e.png)

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**Author:** ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)\
**Post date:** [March 22, 2021, 4:54pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008/2 "2021-03-22T16:54:10Z")

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Hello,  
The planar side face of the tab can be used as a drawing plane to create the wedge shape on it. Then the cross-section can be swept around the arc of the tab and the shape is ready:

Is that what you were looking for?

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [March 22, 2021, 5:13pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008/3 "2021-03-22T17:13:36Z")

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> [@Bibbinator](#):
>
> The idea is that the shape has a hole 1 mm larger than the rod. And there is a plastic tab which is wedged into another hole where a screw goes. The more the screw goes in causes the tab to push into the hole to grip the rod.

I think he needs a taper on the exact opposite side of that tab. So when bolt goes in it applies force against the rod at the red arrow

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**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [March 22, 2021, 5:24pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008/4 "2021-03-22T17:24:47Z")

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Are you trying to make a the shape adjust/stop at different locations on the shaft or increase friction to control speed at which it slides on the shaft?

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**Author:** ![Bibbinator](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/bibbinator/32/4302_2.png) [@Bibbinator](https://discourse.shapr3d.com/u/Bibbinator)\
**Post date:** [March 22, 2021, 5:29pm UTC](https://discourse.shapr3d.com/t/suggestions-to-approach-this-shape/12008/5 "2021-03-22T17:29:59Z")

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Hi, thanks for replies. Oregonerd is right in the first post. I don’t need any stops or other attributes. Just a gentle taper on the inside of the smaller hole. The larger hole will have a 1 mm rubber sheet around the hole which will tension the screw.

Ideal would be I could move the inside edge in my drawing to create the taper, yet maintain the roundness of the tab.