ISO screw thread

Here are three grasshopper documents for generation thread screw

ACME
ISO screw thread external (male) and internal (female).
1. One script for metric (mm) and
2. one for US unit (inch).

The scripts just generate surface with or without problem on joints. I did 1 turn RailRevolution with n threads profile. It seems not better with n turns with 1 thread profile.

Attachments:

Replies to This Discussion

Permalink Reply by spiral on May 16, 2012 at 12:20am

thanks, it work fine

Permalink Reply by AZ on July 22, 2012 at 7:47pm

Just wanted to say how great this is, very helpful. Thank you!

Permalink Reply by Peter Kompier on August 31, 2013 at 4:15pm

Hi Laurent,

I dit some additional stuff with your script. I made it solid with caps and added the chamfers to the start and end:

Thx for your scripts.

Kind regards, Peter Kompier.

Attachments:

ISOmetricscrewthread.ghx, 741 KB

Permalink Reply by Laurent DELRIEU on September 5, 2013 at 2:56pm

Hi Peter

I had difficulties to make solid, but it work fine with your script. I discovered new functions.

Thanks

Here are scripts for GH 0.9.0056. I will try to make them solid.

Attachments:

ISO US unit screw thread GH0.9.0056.gh, 34 KB
Buttress thread ANSI B1.9_GH0.9.0056.ghx, 481 KB
ISO metric screw threadGH0.9.0056.ghx, 462 KB

Permalink Reply by STANLEY SCHULTZ on October 16, 2013 at 10:14am

Peter,

What are you using to rendering those? They look great. Care to share any settings or tips?

Permalink Reply by Peter Kompier on October 16, 2013 at 1:30pm

Hi Stanley,
I use RhinoLive from RandomControl.

Permalink Reply by Peter Kompier on September 13, 2013 at 2:00pm

Hi Laurent,

I dit some more modifications:

- Interface: select target surface,

- Measure the length and diameter,

- Changed the procedure to handle partial turns,

- Add champfers,

- Place solid @ selected surface.

And i made a knurling script, based on this movie: http://grabcad.com/library/knurling-on-shaft

Kind regards, Peter Kompier.

Attachments:

SetThread.gh, 43 KB

Permalink Reply by Peter Kompier on September 13, 2013 at 2:09pm

Here the knurling script i made:

- Adjustable carve angle,

- Number of carves,

- Depth of carve,

todo: place @ target surface, Boolean intersect not stable.

Permalink Reply by Peter Kompier on September 14, 2013 at 5:59am

Ok. Knurling script is stable and fully adjustable now. Included Gates to adjust model without the intersection operation.

Also the measure from, and adjust to target surface is included.

With interface group:

Attachments:

Knurling.gh, 27 KB

Permalink Reply by STANLEY SCHULTZ on October 16, 2013 at 10:32am

Hey Laurent,

How does the male female work? It seems like the surface are directly on top of each other. I am trying to use this for 3D printing. It seems as though the tolerance would be to tight for the threads to actually work.

What do you think?

Thanks,

Stanley

Permalink Reply by Andy Payne on October 16, 2013 at 2:03pm

Hi Stanley,

I've done a lot of 3d printing where I print the threads of screws. This usually works really well. I usually download a model of the specific screw I intend to use off of McMaster Carr (http://www.mcmaster.com/). For the female side, you can download a hex nut and match it to the screw threads. They usually include various formats for the model that you can download (.igs, .stl, .obj, etc). You could check your models against these screw/nut threads to check for accuracy. Just a thought.

Permalink Reply by STANLEY SCHULTZ on October 16, 2013 at 2:29pm

Thanks Andy. Yea, That make total sense. I completely forgot that McMaster has models available. I'll give it try.