STP EXPORT OF 3DSOLIDS ARE THE WRONG SIZE IN MASTERCAM

[Abhi9886]

Hello All.

 

I am using Autocad mechanical 2018.

 

After designing my object in 3D, I am exporting it in stp format for cnc machine (mm dimension).

 

When the step file of the drawing is opened in mastercam, the file opens up in a different scale and not what I have designed. When going for the scaling factor to resize the drawing, there is variation.

 

My object length is 260.00 mm. After importing the step file in mastercam, it shows enlarged/scaled up object. When going for the scaling down, the dimension length that I get comes as 260.102 and not 260.00 mm. 

 

Can anyone suggest solution for this? 

 

I have attached my autocad files as well as the image of dimension that I am getting after importing the step file in mastercam.

source 3d.dwg 1a.stp 1b.stp

[#Rekd™]

Did you ask your reseller for help on this issue?

I opened the 1a.stp file in Mastercam and in NX and I get the same measurements, the problem is likely in Autocad.