Goldilocks and the Three Engineers

When Goldilocks, an inventor, goes for a walk seeking inspiration, three bear engineers visit her bungalow and see that her inventions need a little work to be just right. Goldilocks is an inventor with inventor's block. To clear her mind, she takes a walk.

Coincidentally, a very smart Papa Bear, Mama Bear, and Baby Bear also take a walk, and they find a cute little bungalow with almost-right inventions. Can they help make the inventions just right?