SETTING OUT in global and local grids .LOCAL grid & GLOBAL grid coordinates. BRITISH national grid.

In Today's video I will show you the global grid system and explain how it works. I will then jump to CAD to show you how to create a local coordinate system for your job and this will be part one covering local coordinate system and next week in part 2 I will transform the grid and show you all the rest you need to know about it. If you like it please leave thumbs up and write some comment!
Any questions in the comment and please subscribe to my channel :) Thanks!
LinkedIn: / siteng
Ko-fi: ko-fi.com/siteng
Links: en.wikipedia.org/wiki/Ordnanc...
en.wikipedia.org/wiki/Geoid
en.wikipedia.org/wiki/World_G...
#CivilEngineer#Construction#SettingOut

[@ethelkoranteng6198]

Great info, you are a game changer to our industry.

[@SITENG]

Thanks Ethel!!! Great to hear that, comments like this keep me going and are most important to me :)

[@andreidenis8855]

You have very good teaching skills, thank you

[@SITENG]

Thanks Andrei 😁 Happy to hear that!

[@lidiab406]

great job Greg, keep going!

[@SITENG]

Thanks, will do!

[@EdytaStepien]

Very interesting topic 👍

[@SITENG]

Glad you think so! Thank you!

[@khalidfata2450]

Thanks ssooooo much ❤❤

[@SITENG]

You're welcome 😊 Thank you for your comment!

[@ssajid40]

interesting topic

[@SITENG]

Next weekend second part Shabaz :)

[@ColexPreston]

Great video again always look forward to them when new ones come up! I remember when I was a chainman years ago my senior engineer had a formula in his calculator for this and getting co ordinates was all done manually aswell on a drawing and worked out changed days eh! Iam just glad iam using a TS16 😄

[@SITENG]

Hi Jamie! Yeah, I remember the times, putting everything manually into the EDM and first of course calculator job with coordinates and dimensions :) Robotics are really good, but I think once someone worked like before will understand better and in many cases will be a better engineer. New equipment makes people bit lazy and too much reliant on it makes nearly impossible to spot some mistake. Thanks for comment Jamie, happy to hear you like the vids!

[@ColexPreston]

@@SITENG Spot on! The robotics do make people abit lazy I think as all the information is there for you and you don't need to work anything out just upload it and away you go! Great videos mate really informative and something I don't think anyone has done and it's really good for all the young up and coming engineers to see what actually happens out on the park! 👍

[@solo-repair9374]

@@SITENG Well said. Us old school engineers I used to sit and practice for hours learning how to convert between both grids. Keep up the good work

[@jabaristevens388]

@@SITENG very true i still love to calculate coordinates by book manually as an exercise once i have a bearing and distance and a known position i use a Leica tcp 1205 robotic for all laying outs but once you know the maths by book you can solve errors easily thanks for the videos 👊

[@SITENG]

Thanks Jamie!

[@yurivanishev6182]

Very good 👍 video Greg, Could you please explain how can you find the national grid line with TS 16 and align it with the drawing? Thank 😊

[@SITENG]

Thanks Yuri! I will do soon video about local grid where I will explain how to do it :)

[@huskodgn]

[@SITENG]

:)

[@happyfish7260]

great

[@SITENG]

Thank you Happy Fish 😁

[@happyfish7260]

Hello Siteng, How to convert this local coordinates to DMS ? 👉 N=6818.03, E=28217.66

[@SITENG]

@@happyfish7260 I believe you would have to come back to global, get the latitude and longitude and then conver it to DMS, but to be honest I have never done it before so I can't really help you.

[@khalidfata2450]

Can you please do one that requires rotating like the full site and how to convert to local. Apprecaite your videos soo much

[@SITENG]

Hi Khalid! Will do that in next video :)

[@ssajid40]

I had this same question!

[@unda25]

can you make a video how you enter in a construction site first day and interpret the controll point ,and a way or 2 methods to test , if the control points are indeed what you need , and how do you set out a CONTROL POINT FOR hight or datum

[@SITENG]

Hi! I'll try to do something about it, but this info should be provided but the client who typically hire surveyors, or have some drawings with the grid points with coordinates.

[@unda25]

@@SITENG WHAT IS YOUR NAME ON LINKEDIN

[@unda25]

@@SITENG how to do a traversee , and how many points minimum you need to work with a good precision and accuracy

[@SITENG]

www.linkedin.com/company/siteng

[@SITENG]

I do resection with 3 points, but is not only number of points, but different angle and distance (EDM calculates position based on angles and distances), so the best would be have a 1 target 'close' to you than 90-120 degrees next one with further distance and the third one - optimally another 90-120 degrees.

[@unda25]

for me it will be very helpfull if you can upload some drawings DWG , you can remove company , designer , just for educational purpose , and i like to learn , what every notation mark means

[@SITENG]

I will be preparing these, I though I will upload the drawings, but I actually can't and I have to do the drawings myself.

[@AbhishekKumar-uv3ry]

Thanks for this video, also can I have some information about how to determine the coordinates of a part of structure using CAD.

[@SITENG]

Hi Abhishek! Not too sure what do you mean by that. I will do second part this weekend so if you won't find the answer there, leave a comment :)

[@AnthonyBroady]

@@SITENG hi just found your channel and have binged watched most of it. Great content. Did you upload the second part to this video yet? Thanks

[@tonymaguire9498]

Evening Greg what function are you using to set the local grid? Is it point Id

[@SITENG]

Hi Tony! It's UCS - you are 'creating' your local grid (set new cartesian system in the position and rotation you want). Id point I use to check the coordinates.

[@tonymaguire9498]

@@SITENG thanks dude

[@dawodahibrahim6961]

Please can help me with zone 30 Ghana grid. In national grid.

[@SITENG]

Hi! I don't think I can really, you have speak with a land surveyor from your area, but I recommend you try and try yourself 👍👍

[@thelordisthespirit]

Hi I'm an architectural technologist and we normally have to put Northern and Eastern coordinates on our drawings for guys on site to use to set out the building, kerbs etc, my question is how exactly do you use the coordinates that we have shown on our drawings to set out the building, what does that process look like?

[@SITENG]

Hi Emmanuel! All the building is set to your coordinates so make no mistake 😁 Typically there is a surveyor coming to site and set a control points - points with known co-ordinates and levels so engineers on site can set the instrument based on them. After setting the total station we are using your co-ordinates to set up the building and all other elements. From you we need grid lines set out and at least co-ordinates to grid line crossing eg. 1/A and 1/G so we know how the GL is orientated. When we have these we can create the local grid to make it easier to set out 😁

[@thelordisthespirit]

@@SITENG Thank you very much, this is really helpful to know!

[@SITENG]

@@thelordisthespirit No problem, any more questions let me know 😁

[@thelordisthespirit]

@@SITENG Hi, I have another question, how do you join two slabs together?, so if for example I had an existing slab and I wanted to join a new slab to the existing, how would I tie the two slabs together?

[@SITENG]

Do you mean a construction joint, or some old existing slab with a new one. Normally you have a splice bars left in construction joint for the next pour, you can check on one of my vids. If it's connecting old one with a new pour there would be some drilling needed to provide proper connection (might be drilling and fixing rebar, or some special connectors) - in this case there should be proper inspection made before works to check existing slab condition.

[@tonymaguire9498]

I know theres also a formula for the calculator to convert coordinates

[@SITENG]

Tony, There is and I will tell more about it in next video, but I won't be using calculator for it :) You have to transform your grid to your new local and this requires transformation formula. Because we know coordinates in local and we have corresponding points in global we will use a spreadsheet for it (and Cad maybe too) , spreadsheet will be on my LinkedIn.

[@unda25]

@@SITENG what is your name on LINKEDIN

[@SITENG]

@@unda25 siteng

[@SITENG]

should be page there

[@dazbeats6758]

Hi where is the spread sheet or the video I can’t seem to find it

[@SITENG]

Send me email please [e-mail]

[@dazbeats6758]

@@SITENG I sent email over

[@actionframe]

Greg's English accent does not sound of England...speak slowly ...thank you.

[@SITENG]

Hi! Thanks for advice, will work on it :)