I was doing failure testing on my new Brutstruder. I was very proud of myself when my 1st version lifted a 2 liter of coke. Well, after a few modifications, this one got up to 3 1/2 gallons of water, or about 27 lb worth of lift strength. That's not quite a wades extruder, but considering the 1st 1/2 of the video was with 2 springs, the later I put 3 on, and they are compressed out, so this has a lot more pulling it can do with proper sprints, and 4 of them.
I would suggest watching the whole video, but if you are sick like Rick From Makergear, you might want to skip directly to 3:10 where I punch myself in the face with a Kysan Gearmotor. No blood, but my nose is still sore.