Creating external threads?

k_mcg

Hi everyone.  I would be grateful if I could get a heads up on how to create external threads. No bother with creating internal threads.

However I want to create a model engine connecting rod. 62mm in total length on a Diameter 4mm round Silversteel bar. I want to model a standard M4 thread 25mm along the bar from one end and a similar M4 thread in 4mm from the other end. The remaining middle section of the bar stays unthreaded.

I must be missing something as struggling to find external threads tools. 

Many thanks for the words of wisdom

k_mcg

Thank you Hans. I thought that this might be the case. I use Inventor mainly and have just started moving towards Onshape which I have been really impressed with. As said in my original post I like the internal threading. We produce lots of assembled and component orthographic drawings from the model and it is nice to get all the thread references correct.  Inventor still holds the edge on external threads. 

Thank you for replying. Much appreciated.

Kenny

Hans_Ole_Leirvik

I hope you get it from this image 
Basically sketch your thread profile and sweep it along the helix.

Hans_Ole_Leirvik

Search for "4mm bar with threads" - It's public

k_mcg

Thank you Hans. I thought that this might be the case. I use Inventor mainly and have just started moving towards Onshape which I have been really impressed with. As said in my original post I like the internal threading. We produce lots of assembled and component orthographic drawings from the model and it is nice to get all the thread references correct.  Inventor still holds the edge on external threads. 

Thank you for replying. Much appreciated.

Kenny

john_mcclary

@k_mcg
I just use the featurescript "Thread Creator"

https://cad.onshape.com/documents/6b640a407d78066bd5e41c7a/v/845d049782179b9faee8b6e6/e/f8aea9e5c33e02eab0854a4f

k_mcg

That is more what I am after. Many thanks.