When I worked in SoCal several years ago a few of the guys work with had an instrument they called a Swede. It was just an steel 8 inch ring with three legs that came up a foot. They held a half inch pipe centered on the ring that had a 3 foot metal rod that slid inside that pipe that you would sit on top your blue tops. I probably didn't describe that very well.
Then 2 guys with tape measures would use it as a 3rd point and line of site to set blue tops. Worked great for sheet draining or even setting the crown in a road.
Anyways I thought I might make one this weekend and show these young bucks how to do things when we don't have GPS. Where are my old-school guys that know what I'm talking about. I will throw a picture up after I'm done making one.
Then 2 guys with tape measures would use it as a 3rd point and line of site to set blue tops. Worked great for sheet draining or even setting the crown in a road.
Anyways I thought I might make one this weekend and show these young bucks how to do things when we don't have GPS. Where are my old-school guys that know what I'm talking about. I will throw a picture up after I'm done making one.