Hello Michael and forum community,

I work with a lot of STP files, which I then clean up by deleting invisible objects and inner parts before saving them in MOI's native format.

Usually, the cleaned version saved as a 3DM file in MOI is about twice the size of the original STP.
However, some files turn out to be extraordinarily larger.

For example:

original file with a lot of inner parts and surfaces: 72mb in stp file format
moi clean version is 875mb in 3dm file format.

another example:
88mb in stp file format
527mb in 3dm file format

From my side, I only noticed that this issue occurs with files containing highly detailed geometry, like this part. Please take a look at the screenshot.

My question is very simple: why does this happen, and what can be done about it?

Thanks in advance