Lately, I’ve been using the hydraulic forging press and various dies I’ve made to form some small botanical and animal elements. Usually I do these in runs of 20 to 30 so I have an inventory which will carry a while. In the process of stamping one hot billet after another scale accumulates in the die cavity and could cause loss of detail if not removed.
I found that using a brush was awkward in the tight space and I didn’t have enough wind power to lean in and blow it out so I made a small blow pipe which works well. It was formed from 3/8” tube and is 13” in total length. One end is flared to form a trumpet-like mouthpiece and the other end tapered to bring the outlet hole down to about 1/8” diameter. Thanks to Bernoulli's principle a small puff of air into the mouthpiece pushes out a powerful jet of air removing the scale.
For many years the DuPont company used the advertising slogan, "Better Things for Better Living...Through Chemistry." I suppose this is an example of better living through physics.