I built this as a home for my old 3k flatline. I had trouble getting the velocity to be bearably controlled. Turns out I missed replacing the oring on the valve body. Not a single o-ring on the marker body was doing anything useful (nor on the 3-way before it came off).
I have finally gotten all of the kinks worked out of it and I have one of the other kind of AGD pumps.
I have finally gotten all of the kinks worked out of it and I have one of the other kind of AGD pumps.

At least it weighs nothing.
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