@williwaw You'd have to go back for them then, eh??ÿ I was wondering how you'd shoot the nail in the stump.
When I go back to mark the line I will pull nails after I measure to line from them.?ÿ
Or backsight angle only. I'm finding my "new" 11 year old Leica shoots reflectorless a lot better than the newer Sokkia iX I was using. It shoots father and more accurately.?ÿ
@dave-o No. We don't pound them flush but leave them sticking up a few inches so they can be backsighted from the next setup and move on. I can't ever recall going back and pulling our traverse points. Might need to reoccupy them at some point if there was additional work or something got goobered up.
Just because I'm paranoid, doesn't mean they aren't out to get me.
What's harder than surveying in the hilly bush? Filming yourself while surveying in the hilly bush. I couldn't do it. I'm also camera shy though. Appreciate your videos.?ÿ
@williwaw I guess I was wondering how you get a distance reading off a nail.?ÿ Does DR do well enough to accomplish that or you have some kind of reflective nail or something?
Just because I'm paranoid, doesn't mean they aren't out to get me.
@williwaw Cool, and honestly good to know that these peanuts are relied on for traversing.?ÿ I was just originally asking about your statement in the original post that you'd put a nail in a fresh stump so you wouldn't have to go back and collect anything as you move ahead (being lazy, errr, efficient myself I thought I'd like to do just that sometimes).?ÿ So I wondered about how you'd get a distance measurement on a sighted nail.?ÿ Jedi says he hits them with DR at 400', but wondered if you do the same thing or have some sure magic to accomplish that.
BTW, tangent ?; can you rely on DR on a nail for traverse level precision?
He doesn't get a distance check.?ÿ He sights the nail and sets angle.?ÿ Another way of doing it is to shoot your foresight, then reverse the flip the gun to reverse face without altering the horizontal angle and set a nail in a stake or something else inline with the occupied point and foresight.?ÿ Kiln dried wood warps when it absorbs water, so use a green stake.?ÿ My favorite is moose maple.
@murphy man, maybe I just don't get it.?ÿ I get that you've already got a distance to your station by a FS from the previous point, but don't you always verify that on a BS from the next?
I've done lots of angle only backsights since I started as an instrument man 10 years ago. My party chief would have me set the Pilon with a sharpie mark or a wood stake under the laser plummet before moving ahead and backsight it from the next setup.
It used to freak me out not being able to see that the distance was good, but that was last of experience and fear of messing up. Most of the time we're checking to something else anyway. When traversing through the woods with no checks until the end it would be nice to see distance error but you could still have a bad angle.?ÿ
Sometimes now if I'm going to be on a setup a while I'll set up my backsight without the prism and backsight it angle only (or reflectorless if it's close enough (distance will be short by like 7mm) then I don't have to worry about my Leica robot locking onto the backsight prism and having to use the joystick to turn it back to me. I'm just doing construction layout by myself these days.?ÿ
OUAT, not that long ago, that is the way we did it all the time - even in the city.?ÿ After all, out there in the woods its not like you might be sighting the wrong point.?ÿ?ÿ
@dave-o No BS distance check, just double all the angles and distances moving ahead and average. I usually book it all. If the horizontal and vertical angles don't agree within 10-15" and .02', horizontal and slope, rinse and repeat until they are tight. I wouldn't rely on reflectorless in the woods. Nearly always closing into a GPS point in a clearing at the end of the trav for a closure check.
Just because I'm paranoid, doesn't mean they aren't out to get me.
@williwaw Ah, Nice.?ÿ Thanks.
Have run many miles in the woods that way. In the city, too easy to run backsights around. But in the woods, going back for the sight adds a LOT of climbing over stuff I never want to see again.
I am not sure if most crews could even do that now. They pretty much traverse by hitting a button.
@dmyhill I was just telling my new helper how it is that so many young party chiefs don't even know how to run a traverse through the woods using a conventional gun. If they can't GNSS it, they just vapor lock. Nobody up and coming is learning the conventional ways of the past and as a result are completely dependent on technology that just barely existed when I got started.
Just because I'm paranoid, doesn't mean they aren't out to get me.
I use a robotic total station almost exclusively. I actually hate when I have to get out the GPS because I hate standing there praying for a lock.?ÿ
@350rocketmike
I've wondered if a robot would be an advantage with the kind of work I do, I used a Leica robot doing construction for a long time and I always hated when I'd do a backsite check and it would read zeros but looking through the glass it would be a couple hundreds off.?ÿ