Custom BSP coned thread in fusion360 for a 3/4 Thread OR a RP/RC/R thread?

Custom BSP coned thread in fusion360 for a 3/4 Thread OR a RP/RC/R thread?

vonfinck
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Custom BSP coned thread in fusion360 for a 3/4 Thread OR a RP/RC/R thread?

vonfinck
Contributor
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Hey there, 

 

for a customer project I am to design a plug for a housing that has already a thread inside. I measured it to be 26mm in outside diameter, 24mm in inside diameter and a G14 perfect fit for my thread measurement. 

So at first I thought it is just a cylindrical thread as the length is only 10mm. 

But when I made the first three BSP G3/4" threads I could not get the plug in very far. So I assumed that it is indeed not cylindrical but conical. 

I am since then struggling with fusion to build a coned thread with the right values.

 

What would be the correct way to achieve that? 

A cone with the right thread with constant thread depth that taperes at the end... 

 

I even don't get the settings right with a spring... 

With the values from this site for example (they are the same, that I get from any other reference online) 

https://www.gewinde-normen.de/kegeliges-whitworth-rohrgewinde.html

 

I got a outer diameter of 26.44mm and an inner diameter of 24.11 with 14 revolutions per inch with a ptich of 1.814mm and a cone angle of 1°47'. 

 

What would be the correct way to setup a coil for that?

 

fusion threaa.jpg

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