That is a great setup but a bit complex for a beginner shatter maker.
I'm assuming you fill it with herb and butane, apply low heat and the vaccume sucks everything out of the bud.
Then when the valve is opened the liquid is forced through the screen.
However the plastic used in that diagram can be hard to come by.
Does anyone have an example of one they've built themselves?
Preferably out of easy to find items.
Also, is this the only type of pump that can be used?