# Millcut-head on a screw

**URL:** <https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760>\
**Category:** Modeling Questions\
**Created:** [May 8, 2024, 12:24pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760 "2024-05-08T12:24:13Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![W.L](https://avatars.discourse-cdn.com/v4/letter/w/838e76/32.png) [@W.L](https://discourse.shapr3d.com/u/W.L)\
**Post date:** [May 8, 2024, 12:24pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/1 "2024-05-08T12:24:13Z")

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Hello everyone!

I have a question, i wanna draw a kind of mill-cutter on the head of my screw. I have some pictures where you can see what i mean.  
I don’t know how to draw it… anyone who can help me?

 ![FullSizeRender](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/a/f/af3f3fb8a6855b97714b6c409ea2ffcf085804b2.jpeg)  
 ![FullSizeRender-1](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/9/d/9dfefef598b7beeccf4120ad4139357d667eb120.jpeg)  
 ![VLTKS fear-head](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/0/f/0f648dca851912f41da73ac2be74ef4d4c9e3016.png)

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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:** [May 8, 2024, 1:30pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/2 "2024-05-08T13:30:08Z")

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I don’t have time to demonstrate, but think of it in 2 main parts.

The head is a cone with 8 wedges cut out of it.

The screw shaft is a cylinder with threads revolved around it (search forum) AND the self tapping cuts are 3 triangles lofted and subtracted from the screw shaft… same principle as the threads.

This might help [Threading a screw with Draft](https://discourse.shapr3d.com/t/threading-a-screw-with-draft/3265)

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**Author:** ![W.L](https://avatars.discourse-cdn.com/v4/letter/w/838e76/32.png) [@W.L](https://discourse.shapr3d.com/u/W.L)\
**Post date:** [May 8, 2024, 1:54pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/3 "2024-05-08T13:54:45Z")

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Oh thank you for your reply, i’ll try something!

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**Author:** ![W.L](https://avatars.discourse-cdn.com/v4/letter/w/838e76/32.png) [@W.L](https://discourse.shapr3d.com/u/W.L)\
**Post date:** [May 8, 2024, 2:27pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/4 "2024-05-08T14:27:03Z")

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I have this, but i think it’s hard to shape a triangle in it…

 ![VLTKS fear-head s2](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/3/b/3b70fea55d1a5a91cc396e652e4d6f065ca2aea4.png)

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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:** [May 8, 2024, 2:54pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/5 "2024-05-08T14:54:17Z")

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You have the idea. Make a pie shape for the wedge, extrude it. Then rotate the surface to make a wedge shape with the move tool. You can do it! Gotta jump in the shower. Good luck.

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [May 8, 2024, 3:42pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/6 "2024-05-08T15:42:41Z")

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Hi W.L,  
Does this help?

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**Author:** ![W.L](https://avatars.discourse-cdn.com/v4/letter/w/838e76/32.png) [@W.L](https://discourse.shapr3d.com/u/W.L)\
**Post date:** [May 8, 2024, 4:34pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/7 "2024-05-08T16:34:51Z")

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Whow!! Thank you for this video!  
I’ll try that! I never know that that was possible.

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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:** [May 8, 2024, 4:37pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/8 "2024-05-08T16:37:03Z")

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Nicely done Bob!

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**Author:** ![APDesignMachine](https://avatars.discourse-cdn.com/v4/letter/a/e495f1/32.png) [@APDesignMachine](https://discourse.shapr3d.com/u/APDesignMachine)\
**Post date:** [May 8, 2024, 6:07pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/9 "2024-05-08T18:07:55Z")

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Don’t know how to make a video like Bob did, but here’s another way. I’ll link the [file here](https://drive.google.com/file/d/1392-oGb5K5m5_ICrutux0A6bYKaU82IR/view?usp=sharing) in native shapr so the steps can be gone back through. Just another way to do it.

 ![IMG_0822.PNG](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/8/7/8727e4185054af53ee8fd304ff63e1ef87dff609.jpeg)

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**Author:** ![Bob3DPO](https://avatars.discourse-cdn.com/v4/letter/b/7993a0/32.png) [@Bob3DPO](https://discourse.shapr3d.com/u/Bob3DPO)\
**Post date:** [May 8, 2024, 8:39pm UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/10 "2024-05-08T20:39:55Z")

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Thanks Mike @TigerMike, that means a lot coming from you!  
And Alex @APDesignMachine, isn’t Shapr3D great? I’m reminded of Perl programming many years ago and **TIMTOWTDI** (there is more than one way to do it)

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**Author:** ![APDesignMachine](https://avatars.discourse-cdn.com/v4/letter/a/e495f1/32.png) [@APDesignMachine](https://discourse.shapr3d.com/u/APDesignMachine)\
**Post date:** [May 9, 2024, 1:18am UTC](https://discourse.shapr3d.com/t/millcut-head-on-a-screw/31760/11 "2024-05-09T01:18:08Z")

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Always another way. I just tried to get a more even face on the serrations vs the curved profile.