It was part of the unit.It ran on a 9v battery. I do remember that I had to add some salt to the water. About 3 years ago I gave it to a friend. He was building his own home and I had no other use for it. ----- Original Message ----- From: "Tom Hodges" <[email protected]> To: <[email protected]> Sent: Tuesday, October 20, 2009 1:02 PM Subject: RE: [BlindHandyMan] water level Non-euclidian geometry.
That is very clever. What kind of a beeper is that? I have one that hangs into my coffee cup but it has two probes that I would have to bend to get it to work like you are doing. Is that what you do or do you have something different? Thanks, Tom From: [email protected] [mailto:[email protected]] On Behalf Of Lenny McHugh Sent: Tuesday, October 20, 2009 12:32 PM To: [email protected] Subject: Re: [BlindHandyMan] water level Non-euclidian geometry. I have a water level that has a beeper on the end that you secure.The way that I used it was to fill the tube with water and hang the beeper end. then I slowly brought the other end of the tube close and removed the cap. When it was raised enough to make the beeper sound I placed a piece of tape where I wanted to check. Then all around the room I could tell where it was level by feeling the tape edge. I used this for installing a drop ceiling. When a friend came over later to help he started checking my work and could not believe how level it was. I told him that I was just lucky before I showed him the tool. I think I paid about$25 for it. ----- Original Message ----- From: "Ron Yearns" <[email protected] <mailto:ryearns%40sbcglobal.net> > To: <[email protected] <mailto:blindhandyman%40yahoogroups.com> > Sent: Tuesday, October 20, 2009 12:00 PM Subject: Re: [BlindHandyMan] Non-euclidian geometry. One thing I used a number of years ago on laying out and framing for a concrete foundation is a water level. It consists of a length of clear vinyl tubing. Half inch in diameter works well but not real critical, just if too small you tend to get some capillary action. Make sure it is long enough to come up to where you are wanting to level off with the rest laying on the ground. Almost fill it with water. Water seeks its own level so the two water levels seen through the clear tube will be level with each other. by holding it near stakes or walls you can put level marks to measure down from or to use if they are the right height.. This probably isn't as accurate as one of those laser level but for long lengths I think it does real well. Ron ----- Original Message ----- From: Dan Rossi To: Blind Handyman List Sent: Tuesday, October 20, 2009 9:09 AM Subject: [BlindHandyMan] Non-euclidian geometry. I need to call in NASA to investigate my basement. Apparently, my basement is a very special place where Euclidian geometry goes right out the window. I have two parallel beams that are nice and level. The level beeps continuously as I move it along the beams. I lay a 2X4 across the two beams and that 2X4 shows level. So, if the two beams are level, and they are level to each other, then a 2X4 placed across them at any point will be level. Here is where it gets interesting. At one end, the 2X4 is level and all is happy. At the far end, if I level the 2X4 it is well above the one beam. And I don't mean like a quarter of an inch, I mean like an inch and a quarter or a bit more. This is actually impossible. But that is why my basement must be declared a non-euclidian zone. I think it has to do with the fact that even if the level is off a tiny bit, like 0.1 of a degree, over 15 feet, that is actually 5/16 of an inch. Do that three times and you get nearly an inch. Plus the middle beam that I was trying to level wasn't fully supported yet, so is bending and flexing, and so was the 2X4 I was using. Add all that up and you get a lot of error creep. I need an 8 foot level, but not sure I can get that one passed SWMBO. I might try using my saw guide on edge which should be pretty stiff. -- Blue skies. Dan Rossi Carnegie Mellon University. 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