or you could use trimble/geodimeter equipment that uses active tracking and works in the dark.
@stlsurveyor?ÿ ?ÿWhat do you use the Leica 6100A Theodolite for?
@john-nolton We use it for our Astro work, but at higher latitudes it doesn't work as the barrel bottoms out on the faceplate, so the 5100 comes on those trips as its barrel is a wee bit shorter.
N10,000, E7,000, Z100.00
PLS - IL, MO, AR, KS, MN, KY
@gene-kooper ?ÿcarbine light. ?ÿ ?ÿThats what goes on the head ???? ?ÿ Rigged up an old one for my daughter to see how they worked. ?ÿWho needs a fan-dangled flashlight that you have to worry about batteries going dead. When all ya need is the right crushed stone a bit of water and poof we have light. ?ÿ?ÿ
Carbide light
@stlsurveyor do they still have the T-3??s. Those are what I liked the most. We had them still in my USMC days. I was getting my old survey books out the other day and came across the old astro sheets, logs. Grid travers comp sheets. Triangulation 3d sheets i still had some old blank sheets.?ÿ
@holy-cow yes sorry carbine carbide all close on this darn smart phone that??s not very smart. ?ÿ Calcium carbide. My great uncle was a big coon hunter down in Mississippi started me out on a welch pony and a old hat with a carbide light. I had to stuff newspaper in the hat because it was to big for my head. ?ÿLol. He passed last week at 91.?ÿ
Carbide light
Look out. The SurveyorConnect spelling Policeman is on duty. 🙂
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@olemanriver Speaking of old school, when I was a little calfpoke my Dad had an acetylene welder which consisted of a large tank he'd fill with water and a calcium carbide "dispenser" attached to the top of the tank. Here's a photo I found online that looks very similar to the one he had.
I kept repeating it over in my head and it just didn't quite sound right.?ÿ Did a search for carbine light and found something very different.
Butt ewe sea eye M uh stikkluhr fore spieling.
Gene, as you are a cattle guy.?ÿ Can you explain to those here the difference between a limousine and a limousin?
Gene, as you are a cattle guy.?ÿ Can you explain to those here the difference between a limousine and a limousin?
Limousine is a large car complete with chauffeur.
Limousin is a French breed of B?uf cattle....also the region in France where they come from.
Excellente, bon ami.
Now, if we could get everyone to agree on affect/effect, viola/voila, accept/except, wave/waive and many others.
@stacy-carroll I've still got the circa 1966 K & E transit my dad's earthmoving company used back in the day, very similar to what you describe here. I used it for a year or so when I went out on my own in the early '80's. When I got my first top-mount EDM I had fun asking the salesman if it could be mounted atop the K & E. He advised against this & I'm glad I decided to listen to the grownups.
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I am working in a room and pillar mine, with 50 foot wide rooms, 150 foot centers and 10 to 15 foot roof heights.
I have spads or brackets in the roof at 150 foot intervals. I am using 10 year old equipment. A Leica 1200 robot with a VHF radio link, GRZ4 360 prism and an Allegro Mx with Carlson SurvCE. I work out of a pickup truck with a scissor lift on the back. I typically set up under a plumb bob (there is a divot in the carry handle for center) at a point and back sight a point 300 feet away using a custom mount to hang the plumb bob. There is a marker hanging at each point, so I can point the instrument at it before getting the back sight. As long as the instrument is looking in the general direction of the prism, it will find it without any external light, just the laser and guide lights. I have a prism mount on the back of the truck, so I have the instrument turn to the next point and get close to line and it usually finds the prism, locks and tracks without any issues. I have staked out thousands of points, run miles of traverse, and done topo all underground and mostly in the dark with out any issues. I am also working solo 99% of the time. There are other miners around and my location is known.|
Also, before the Leica, we had a Topcon 815A that worked in the dark and I have used my personal Sokkia SRX in the dark on the surface and it works just fine.
If we have a geodetic bearing we will run the line in with staff compass. This gets the line laths distributed along the line, we clear the line at that time then traverse over it later, much easier to follow the line that way.
I've never worked in a mine.?ÿ I did use a Topcon 802a robot for airport work at night and it worked great.?ÿ No problem with tracking and environmental conditions are much better than daytime. The only thing better than being solo is working solo at night.?ÿ Nice and quiet and a lot less crap gets in the way.