Missing thread size (ISO Metric Profile 23.0 mm)

[kevinDVWY4]

I have seen from over a year ago conversations about missing threads, but I cannot find a reason or a solution.  I need to send a file internationally for machining prototyping and I cannot put a 23mm thread on my drawing.  I can go 22mm and 24mm but not 23mm (there are a few other sizes missing too).  Is there a workaround for it?  Why are they missing?  I know that people talked about editing XML files, but if I send the file to someone else, if they have the standard install, they won't have my alterations and I don't want to risk having the file change and get a different thread.

Any solutions?

Thanks

Kevin 

[etfrench · Accepted solution]

If you're just sending the drawing, then the prototyping company won't need the thread xml file.  If you're sending the Fusion 360 file, then include the thread xml file along with instructions on how to install it.  You may also want to link the official Fusion 360 documentation for editing the thread file. (Sorry, I don't have that link.)

[MRWakefield]

I expect the reason that the 23mm dia is 'missing' is that it is not a standard size. If your customer could change it to either M22 or M24 it would make life easier for all concerned. Also, if the thread will need gauging then a standard gauge is going to be a lot cheaper than a special.

[alphaaPDYTU]

I would also like to know too.  We need it because some people find the same size thread too tight.  For example, 45mm size thread,  and some just need a little more wiggle room due to printer quality or material quality and they can fit it perfectly if it was 44mm, but the next size down is 42mm 

[etfrench]

The correct way to fix this is to calibrate the machines creating the parts.  The slightly less correct way is to create a custom thread by editing the thread xml file.  The mostly incorrect way to do it would be to use the wrong diameter to fudge the fit.

[captainfalcon92]

Is also missing the world-wide common M32*3. Used for cars oil caps.
Why ?

Meanwhile SolidWorks let you set diameter and pitch independently at will.
Honestly fusion's thread tool is very limited. Worse, the thread file is a nightmare to maintain.

I cannot explain the choice of programming it in this way. Let the user type diameter and pitch like in every other cad software. I'm sick of messing with a mile long xml file.

[MRWakefield]

M32x3.0 isn't an ISO standard so you can understand why it's not included. There are all sorts of 'oddball' thread sizes like this that seem everyday in certain trades or disciplines. I agree that it would be great if we could just set any diameter, pitch, and tolerance and let Fusion work it all out for us.

Anyway, I've attached an XML thread file for the M32x3.0 if you need it.

[Drewpan]

Hi,

Andrew Tannenbaum is a famous Computer Researcher (heard of Linux? He was the Teacher of the Linux guy Linus Torvalds). He said:

"The thing about Standards is that there are so many to choose from"

I think that is part of the Problem.

Cheers

Andrew