Here’s an example. I downloaded a randomly selected stove from the 3D Warehouse. The file size is shown as 40 Mb. It looks like this when I get it in from the 3D Warehouse.
I deleted the image of it and ran CleanUp3 on it and this is the report. Notice how much stuff is removed.
This reduced the file size by a little over 33% but there’s more that can be done.
If this stove was going to be shown in a kitchen model, it doesn’t need any of the internal geometry at all but it’s there.
Look at the Outliner. Well, the top half of it, anyway.
There’s over 27 entities in just the wires that support the racks on one side. Details no one will see or care about if looking at a model of a whole kitchen.
The galvanized metal texture used on the outside is over 2 Mb.
My point is that by itself this is a nice enough model. I don’t think I’d buy a range with a galvanized skin but that’s me. If you were going to add this to a model of a house as it is, your file size goes up by 40 Mb. Now add similar sized appliances and furniture to your house model and you can easily get the file size to the point where it is unmanageable and your computer struggles to process all the data. If this range was something I needed to use in a kitchen model I would seriously gut the thing. It wouldn’t need any of the internal stuff, it doesn’t even need the feet in the back. And I’d either edit the metal texture to reduce the file size or use a better material instead.
I spent a little time doing further cleanup and reduced the file size more. It could still stand some simplification but the file size is now reduced by nearly 75%.