I Got a Vacuum Pump
I recently obtained a Vacuum pump from the school (they got it from like a barn or something where it was sitting for like 10 years, so it needed a lot of cleaning, lot of dirt). I'm not sure how strong it is, but it is powered by a 1/2 HP motor (the same motor that I got earlier, I'm just now using the Vacuum pump) and uses pullies to make the torque more around 2HP. Couple of Questions:
-It works (I'm not sure how well, if you put your hand over the output and give the pulley a 1/4 rotation turn it generates a noticeable amount of sunction (and sounds like an opening bottle of wine when you take your hand off).
-What usually goes bad with old pumps, can I prevent it?
-I should probably change the oil, is there a cheap local way of getting some (like some sort of auto oil?)
-Do you think there's enough suction to create a vacuum tube. (doesn't have to be precision made, it's for Tesla Coils, think large Vacuum Tubes)