Library example
Flange IABE.741334.011
3D model from a drawing: every drawing dimension measured on the model.

ClassSimple$8
Dimensions checked18
Build time40min


The question
The title block says 0.35 kg, but the part built to the drawing weighs 0.268 kg — 23% less. No dimension explains it: maybe the title block shows the blank mass.
What we did
The model follows the drawing dimensions exactly (0.268 kg); the difference with the title-block mass is asked as a question — it may be the blank mass.
Result
Done: the model is built, every dimension checked.
A similar drawing?