How to add ACME thread type

[sinklar]

How do I add ACME threads to the Thread Type pull down? I need 1/2" 10TPI left handed threads in a model.

[innovatenate]

I don't believe this standard has been added to the Thread command. The thread command accommodates fastener threads. I'm didn't note any other power thread standards in the Thread tool. You may consider adding a request for ACME power threads to be added to the thread tool in the Fusion 360 IdeaStation (link below).

http://forums.autodesk.com/t5/Fusion-360-IdeaStation-Request-a/idb-p/125

You may be able to manually create the power thread with a sweep or loft command. I hope that helps.

Thanks,

[sinklar]

Acme threads have been around for over 100 years and I would consider them one of basic building blocks for translating rotary to linear motion. I have made the request to add it.

[sanjay_jayabal]

Hi sinklar,

Thank you for adding the request to IdeaStation.  Unfortunately, I don't think even a sweep of the thread profile along a helix will get you the desired results in Fusion because it has no twist control as it moves along the helix and hence the profile orientation is not uniform.

The best workaround I can suggest right now is to model the ACME thread (as 3D geometry) in a different application such as Autodesk Inventor, import it into Fusion, insert it into your model and do a combine.  Autodesk Inventor also does not have ACME threads in its Thread feature (and I am not sure if any of the modeling programs have a Thread feature that can be modeled as 3D geometry).  CAD program(s) such as Autodesk Inventor however, does maintain the profile orientation along the sweep path, so an ACME thread can be added with a Sweep.

If this workaround is good for you, please let me know and I would be happy to post an f3d file of the thread you are trying to create.

best regards,

Sanjay Jayabal.

[innovatenate]

Awesome! I gave your ideas some kudos! For those looking, the link is below.

http://forums.autodesk.com/t5/Fusion-360-IdeaStation-Request-a/ACME-Thread-type/idi-p/5066114

Can I ask what you are intending to do with the fully modeled thread (e.g. manufacturing, 3D printing, etc)? You may be able to download a CAD model from a supplier like the one below.

http://www.nookindustries.com/Product/ProductLine/Acme-and-Lead-Screw-Products

If it is for visual fidelity only, you may be able to get it look close by applying an 1/2-10 Inch Tapping Thread without the computational overhead of having the thread modeled. 

Hope that helps!

Thanks,

[sinklar]

I have purchased a 1960's Southbend Heavy 10 metal working lathe. It is in need of some repair and I thought I would try to model the parts I am repairing in Fusion. I am working on the tail stock now and I was trying to model the feed screw for the tail stock extension. I work in IT at a bank for the day job and the lathe is a hobby project to learn metal working and to build parts for my other projects. It would be nice to create the entire tail stock assembly and be able to produce prints for the various parts. The keynote presentation at Makercon by Carl Bass got me interested in Fusion 360 and I would have thought the ACME threads would be included if the product is geared toward the maker. Anyhow I will keep tinkering and learning and maybe the powers that be will add the ACME threads. Overall a very interesting product and keep up the good work.