problem with threading on imported component - inventor 2018

[vale79]

Hello everyone
I recently installed inventor 2018 and have this problem, as seen in the pictures:

- in images 1 and 2 you see a tendon of abnormal threads, indicates a length of thread 1 while the thread in object is much longer, and also varying the value or tipping complete thread does not change anything. This is an imported design.

- in pictures 3 and 4 I created a cylinder and as you see the curtain is normal and you can make internal or external threads even partial.

Can someone tell me how to set import options to avoid this problem?

Thank you very much
Hi.
That's right.

 

[vale79]

hello to all
for now I solved the problem by dividing the surface of the face cmq if someone knows a somewhat more elegant method and more correct to import the piece well come.
Thank you!
Hi.
That's right.

 

[stefanobruno]

Measuring units in inches.

 

[vale79]

Thank you so much!!! I didn't notice that curtain.
If I had already made some changes and saved the piece, could I change this later, when it is an ipt, or do I have to do it again?
Thank you again!
That's right.

 

[stefanobruno]

You can do it at any time, of course, if you did an extrusion of 1", when you change the units you find it 25.4mm.
the path to change the units is: tools --> document settings --> unit --> length.

 

[vale79]

Thank you so much!! ! ! ! !