Well, I've done a bit of welding, myself, but mostly oxy-acetylene(sp?) My experience with arc welding is pretty thin, and while I do love MIG welders, I'm not too good with them. I do know enough, however, to know that welding aluminum is no easy task. If you can do that, kudos to you, but I don't think that the average reader is going to be up for it, or have the equipment for it. Inert gas welders are not cheap. And neither is the inert gas required for their use. Thus, that question of capacitive measurement, sparks (what a horrible pun) my interest. I think it should be possible to measure the volume of petrol in a tank accurately without first taking a cutting torch to the tank. --Brendan ----- Original Message ----- From: "Pic Dude" To: Sent: Tuesday, June 25, 2002 10:54 AM Subject: [OT]: RE: [EE]: Fuel tank sensor / real world solutions > Funny you should mention that. I just finished a welding > course, taken for the sole purpose of doing 2 things on my > kitcar -- building my self-designed kick-all-butt rear > suspension, and building a new fuel tank (aluminium) which > will have dual in-tank pumps to power the 500+ hp w/o the > annoying noise of external fuel pumps. > > Don't think I will try, but according to the instructor, > you can weld tanks which have already had fuel in them, > by filling them with water. > > Cheers, > -Neil. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu