I've built 1
plastic drop checker before but I've always wanted a nice glass bulb drop checker. This morning I was window shopping at GLA and saw the Clip-n
and thought "Hey, i've got some glassware that looks kinda like that. Maybe I can make one."
I collect cool looking glassware from the surplus store at my local university (The Bargain Barn at UC Davis
) and happened upon some 1.25" diameter round flasks with 4.75" long necks. Perfect.
Unfortunately I couldn't manage to bend the neck with my little butane torch, so I tried using an ampule that I had picked up at the same time. It wasn't easy to bend the neck nicely but it looks like it's working:
OK, so it's pretty ugly, but buoyed by my success I tried again with the tiny flask:
I shoved a piece of tiny styrene tubing in and filled a small (unsharpened) syringe with some drop-checker solution:
And here's the final result (the flask was just added so the solution hasn't had time to react yet):
It's not really very DIY because the hard part was done when I bought the flasks and I'll never be able to find more, but I'm excited because I picked up 10 of these flasks for about $0.50 each. Attempt #2 resulted in broken glass, so we'll see if I can even manage to reproduce these. It could have just been beginner's luck.
If I can make some more, I'll probably RAOK a few and then see if I can trade for some decent shrimp for the new tank.