I have been surveying 51 years (36 years licensed). I trained many "green" Rodman. I taught surveying and cadd classes at 3 local community colleges for over 15 years and then taught continuing education classes for license renewal. Your videos are extremely well done and very educational. They would be a great tool for training young or old future surveyors. Thank you producing a great training tool. I would have loved having something like this 50 years ago when I began my survey journey
@Rami Tamimi - Yours are the best videos I've watched on surveying/total stations, thank you. One question: You mention a few times that you know the elevation of the manhole. This is crucial because this is required to determine all other elevations. Therefore, my question is -- Can you explain how/where a person *finds* the known elevation of landmarks, such as manholes? Thank you in advance!
Usually known elevations are given though a federal agency. In America, most benchmark elevations are given from the National Geodetic Survey (NGS). If you don't know your elevation, you should assume your elevation and then adjust all the relative elevations in the office.
Too bad you forgot to mention the upper and lower croshair. Count these readings together and devide by 2 to check your final Reading. Also, you van check the distance. Keep up the great work!
Thank you for the video! I liked the explanation! I still have a question. Where I use the closed loop circuit? Do you recommend a book where I can read more about it? Thank you!
Don't let them move the rods from the turning point while you are moving the instrument! Always have the rod holder use a rock or high point of hard ground as a turning point.
@@RamiTamimi love it and can you please make a video about cross section leveling and also how to plot on graph . Appreciate the work 😃😃you make it so much easier to understand. Thank you.
Great question. This is given information. If you do not have a known Benchmark, then you can assume an elevation of 100 feet and work relative to this assumed elevation.
Benchmark elevations are generally given through record. Now if you don't have the record elevations, you may also assume the elevation and then adjust in the office.
Hey Rami, I noticed you using a very nice quality set of chaining pins or arrows in one of you videos, where did you find them? I would love to have a set just like them.
thank you .I noticed the readings in your booklet on TP1(gate) on closing the loop changed from 3.79-4.35(for back-sight column) and 4.50-3.75 (on foresight column) on time stamps 11:45 and 11:57 , is this justified ?
hi their im presently working on a construction site in guyana as a carpanter but i was assigned to work as a chain man but im using a bumpie level but my field note is not how it supposed to be noted can u please help me out in my firld notes
In my opinion if you plump the leveling back and forward holding the rod like that you end up getting error, unless there is a bubble that indicates level is straight to precisely level it. No problem with your method tho.
The ideal method is always to use a bubble, however, in the field, we have to have methods that will solve problems like leveling the rod without a bubble. Hence rocking the rod is what we do in practice when a bubble isn't present.
Why don’t you read thousands? Why don’t you level the tripod legs? Why is your instrument so low? I’m an instrument man and if my boss sees my tripod leaning to one side like yours was I’ll get in trouble. Can’t do that in the construction sites I go to
@@bdm3056 my level rod has a precision of only 5 thousandths, and industry-standard is usually the nearest one-hundredth of a foot. You could level the tripod legs, however for a differential level, it's not critical, total station would be more critical. My instrument height doesn't really matter since we are calculating the height of the instrument using the backlight reading to the benchmark. Whatever height you set it to should be comfortable for you, this height is what I am used to. My equipment was not leaning, I leveled it on camera. 😊
Dear Rami thanks for the informative videos. In your current video at time 8:40, when you are ready to go to the next point, I think it would be better if you go right under the tripod and carry it on your shoulders. In your case, the level could fall on the ground.
Hi Rami, thanks for the great video. If working alone is it fair to say that the same results could be obtained by using a 360 external laser level with a laser receiver mounted to the levelling rod?
I have no words! This is impeccable work! God bless!
I have been surveying 51 years (36 years licensed). I trained many "green" Rodman. I taught surveying and cadd classes at 3 local community colleges for over 15 years and then taught continuing education classes for license renewal. Your videos are extremely well done and very educational. They would be a great tool for training young or old future surveyors. Thank you producing a great training tool. I would have loved having something like this 50 years ago when I began my survey journey
Great as usual, but a drawing at the end of the video showing these steps and relevant values will be very useful. Thanks, Rami..
@Rami Tamimi - Yours are the best videos I've watched on surveying/total stations, thank you.
One question: You mention a few times that you know the elevation of the manhole.
This is crucial because this is required to determine all other elevations.
Therefore, my question is -- Can you explain how/where a person *finds* the known elevation of landmarks, such as manholes?
Thank you in advance!
Usually known elevations are given though a federal agency. In America, most benchmark elevations are given from the National Geodetic Survey (NGS). If you don't know your elevation, you should assume your elevation and then adjust all the relative elevations in the office.
asbuilt construction dwgs will have elevs..good for a quick check..dont rely on them though..
Too bad you forgot to mention the upper and lower croshair. Count these readings together and devide by 2 to check your final Reading. Also, you van check the distance. Keep up the great work!
Thank you for the video! I liked the explanation! I still have a question. Where I use the closed loop circuit? Do you recommend a book where I can read more about it? Thank you!
I have learned more from two of your 12 minute videos than an entire semester of my surveying class. Awesome. Thanks.
Glad to help!
At the begin you gave the opposite way to read js fyi the phil stick ,
Don't let them move the rods from the turning point while you are moving the instrument! Always have the rod holder use a rock or high point of hard ground as a turning point.
3:54 I've never heard a grade rod called a Philadelphia rod in my entire life. Where does that name come from?
Dude you busted your level loop
Really appreciate 😊 and editing is on point .How are there two of you at same time or do you have a twin that dresses exactly same 🧐🧐🧐
Haha, I used an editing trick called masking. Glad you liked it!
@@RamiTamimi love it and can you please make a video about cross section leveling and also how to plot on graph . Appreciate the work 😃😃you make it so much easier to understand. Thank you.
Yes I've made a video about sectional leveling, or Profile Leveling. Here is the link: th-cam.com/video/-S1FKc7U0rw/w-d-xo.html
@@RamiTamimi that guy is slow he should be fired .haha..
Thank you for taking your time to create these videos...they are so helpful
You are so welcome!
Dude,..... You are amazing
Thank you so much 😀
great explanation, hard to learn just by reading so it helps that you illustrate
Glad it was helpful!
بسم الله ماشاء الله مهندس رامى
الله يبارك فيك يا غالي
حبيبى يا كبير
Sir, how do you know the known elevation of first benchmark (BM1) as 795.00 ?
Great question. This is given information. If you do not have a known Benchmark, then you can assume an elevation of 100 feet and work relative to this assumed elevation.
@@RamiTamimi Ok Thank you sir😃😃😃
I’m just starting to learn to run the gun at work this is very helpful. Thank you
Sir, can u tell me how a surveyor calculates the Benchmark of a particular place?
Benchmark elevations are generally given through record. Now if you don't have the record elevations, you may also assume the elevation and then adjust in the office.
@@RamiTamimi ok sir
each town, city, or state province have a database that Is free for all to use..
Nice
Thanks!
Hey Rami, I noticed you using a very nice quality set of chaining pins or arrows in one of you videos, where did you find them? I would love to have a set just like them.
I just bought them from my local surveying supply store. They do sell them on eBay and Amazon as well.
thank you .I noticed the readings in your booklet on TP1(gate) on closing the loop changed from 3.79-4.35(for back-sight column) and 4.50-3.75 (on foresight column) on time stamps 11:45 and 11:57 , is this justified ?
yeah ive notice too
Great job
Thanks!
Philadelphia rod lol
ur looking at the script to talk.
why do you seem to be trying to take imperial measurements in metric form? did i miss you explaining that somewhere?
hi their im presently working on a construction site in guyana as a carpanter but i was assigned to work as a chain man but im using a bumpie level but my field note is not how it supposed to be noted can u please help me out in my firld notes
In my opinion if you plump the leveling back and forward holding the rod like that you end up getting error, unless there is a bubble that indicates level is straight to precisely level it. No problem with your method tho.
The ideal method is always to use a bubble, however, in the field, we have to have methods that will solve problems like leveling the rod without a bubble. Hence rocking the rod is what we do in practice when a bubble isn't present.
@@RamiTamimi just buy a hand level and the Rodman keeps it on him. Simple. Got to have the tools to do the job correctly.
Why don’t you read thousands? Why don’t you level the tripod legs? Why is your instrument so low? I’m an instrument man and if my boss sees my tripod leaning to one side like yours was I’ll get in trouble. Can’t do that in the construction sites I go to
@@bdm3056 my level rod has a precision of only 5 thousandths, and industry-standard is usually the nearest one-hundredth of a foot. You could level the tripod legs, however for a differential level, it's not critical, total station would be more critical. My instrument height doesn't really matter since we are calculating the height of the instrument using the backlight reading to the benchmark. Whatever height you set it to should be comfortable for you, this height is what I am used to. My equipment was not leaning, I leveled it on camera. 😊
Can u do open differential leveling..
And make calculations using excel
Tnx.
Good job! Love these videos.
Glad you like them Leyla.
Great breakdown, great edit and showed how simple Level Runs are. Very well done!
Thank you, glad you liked it!
Explained this better than my college instructor. Thank you!
im very thankful u make videos about this subject since my instructor never gave us a lecture regarding it especially now that it's online class
You are very welcome, I'm glad I am able to help!
It's hard to find good chainmen these days :P
واضح انك عربي
شغال عندك من امتي ؟
أنا أمريكي من أصل فلسطيني وأعيش في أمريكا.
طيب مهنة المساحة مطلوبه في امريكا
هينفع اقدم عليها ؟؟
Dear Rami thanks for the informative videos. In your current video at time 8:40, when you are ready to go to the next point, I think it would be better if you go right under the tripod and carry it on your shoulders. In your case, the level could fall on the ground.
Сразу видно что привык на тахеометре работать. Прибор низко ставит😊
Hi Rami, thanks for the great video. If working alone is it fair to say that the same results could be obtained by using a 360 external laser level with a laser receiver mounted to the levelling rod?
Hey Rami why surveyors don't use total station for elevation loops, only eye levels? Thanks
Because of accuracy
Thank you so much
no size
?
Just use meters. Holy crap, it’s the 21st century.