Custom preset threads in TheadData folder??

[kzydave]

I need to use an 8 x 1.5mm ISO pitch but it doesn't exist.

I can use the coil function and create the custom need thread.. but

It would be sooo much easier to just goto thread and select.

Is there somewhere I can download an addition to the ThreadData folder that exists on my Mac?

How do I work out the details needed to add them to my own file??

[HughesTooling]

There's info here on where to add custom thread data XML files. You will need to manually move your file when Fusion updates and don't just edit one of the generic files and add back, make a copy or create a new file and data copy across. I'd copy the info for M10 and just take 2 from all diameter info.

Mark 

Edit Should have read DON'T just edit one of the generic files.

[kzydave]

I have seen all of that and know where the profile XML file goes, but the data for the specific thread I have no idea on.

[HughesTooling]

Like I said copy the M10x1.5 thread info and just subtract 2.0mm from all of the diameter info.

If you look in the iso thread XML for m10 using an XML editor you'll see this. So 9.85 will be 7.85 8.928 will be 6.928 etc.

Mark

[HughesTooling]

Just for practice I've made the attached file. Rename and give it a go, I've not installed it but I think it's correct.

Mark

[kzydave]

sorry, missed the first post when I saw the email come through. did check online. So making another file and just taking 2 from the number is fine. saw that in a another post as well and already have done that and can use the custom profile.

But its not the exact correct numbers right?
if I use those number, will a m8x1.5 thread screw in properly?

Is there a proper way to calculate these values??

[HughesTooling]

The number will be correct. Unfortunately all Fusion threads are constructed incorrectly but they will be more accurate than your average 3d printer. What are you using the modeled threads for?

The sizes are calculated off the pitch so changing from 10 to 8 by subtracting 2 will be correct. You can double check here.

Mark