"model making" is a correct and usable phrase in written English.
You could use it, for example, in a sentence like this: "My brother has always had a passion for model making."
Advertising has been a killer Internet business model, making billions of dollars for Google and others.
Growing too early amplifies flaws in the business model, making them harder to fix.
Emphasis on the design process and principles of representations through architectural drawing and model making.
You're taking a differential equation, you're taking your model, making it discrete and computing with matrices.
Another casualty of technological change is the increasingly lost art of architectural model making.
Walking to work I pass a brilliant sounding room labelled BOFFIN CITY and the model making department.
By the time he opened his own furniture workshop in 1917, Rietveld had taught himself drawing, painting and model-making.
Highlights include model-making sessions, where children can make a character from the series.
Artifacts resulting from scanning or model-making errors on commonly obtained clinical meshes make teeth segmentation more challenging.
Sketching and model-making are important to the way we work.
Model-making by Kerry Hughes.
