Chainsaw Repair

Seriously, if I had to do it again it would be faster. Not that I've had time to play with it. The way to do this would be the bed the cavity with clay, smoothing the gullies and such. Then spraying expanding foam in it so you had a perfect model. Building a box and then the trial and error stuff is way too time consuming. Of course, if I didn't want max volume it would also have been easier.