Hello /sci/ i am basically need to do a bird feeder (inb4 sneed) in small scale but can't get it to work because the thin pipe tend to develop big bubbles of the diameter of the pipe, blocking it, or just get stuck due to surface tension and not let drops out. Does anyone know any design or matereialt hat would prevent this inconviniet? I tried instead of just usigna regular pipe cut, putting a "lid" on it and punching smaller holes on it so that the bubbles formed will have a diameter smalller thatn the one of the pipe and therefor wont get it blocked. That part actually worked but what isnt working is that thos smaller holes just dont work. I know the thinnest the "lid" is the better because that will remove the capilary action but i just cant get any design to work.... can anyone help me? PS: i copied this design from pad ink tanks and eyedroppers.