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Need more than just freely selectable drop downs, need to be able to just tell it the pitch and profile.
You can make any thread using the coil and sweep commands.
There is a thread kicking around here where the devs gave a work around that pretty much sucks. here is a better work around.
Make a cylinder the nominal size of your bolt. Use the coil command to make a triangle profile coil that matches your thread pitch, ensure it starts at one of the x/y/z planes. Make sure the profile is not nearly the same size as your profile - .005" to 0.010" smaller works fine (it must be smaller), select new body. Try to size the coil so its outside diameter is a bit bigger than the cylinder you wish to thread. Use Combine to cut the new body from the cylinder. if the coil size and the final thread profile are too close to each other or too similar in size, F360 will kick a weird error that translates into "I cant tell these things apart."
Create a new sketch, use the same plane the end of the coil ends on. Select slice in the sketch tools and sketch your thread profile.
Use Sweep with the Path + Guide Rail option to sweep the profile along the coil path, and use create new body. You will probably have to play with the options a bit to find which of the three lines left by the coil work best for the path and guide rail.
Use the new body to cut the cylinder, keep tool if you wish to use the thread again.
I used this method to create a custom 2 start left hand worm and it worked very well.
You will have to play with the coil commands a bit to get them to work right, I found I had to use a negative pitch and negative height on my worm. The downside is the thread ends in a flat profile inside the cylinder, so you should add an extra 1/2 thread or more to trim off later or if you are going to use CNC to turn the profile. I had mixed success trimming the body down after it was formed. I found that it trimmed perfectly into two new bodies, but goofed up when the extra body was deleted, so I just hid the body. This was probably because I was attempting to delete both ends of the worm and one end had all the initial work done creating profiles etc.
Hope this helps get you by for the moment, I suppose I should create a thread on the topic.
thanks for the tip how to relize it. It was known to me how to do it with coil and sweep commands and how to do it in details. But as you see, it is very laborious, also there is not an easy helix comand and the sweep command is not so good too (I'm using Solidworks too and there it is much easier). So it needs a very, very, very long time (compared to some mouse clicks making a thread in F360).
So thats the couse I'm asking for adjustable Whitworth thread.
At this time I'm making a file: "BritishStandardAndNonstandardPipeParallelThreads.xml", which will include all BSPP threads from G 1/16" to G 6" and all with thread pitches 28, 19, 14 and 11.
Hope I can provide this file here and everybody can download and use it. Is this possible here?
