hi guys and welcome back to my site engineering channel SITENG today is
the next video from the SETTING OUT series and in today's video I'm going to
show you how the reference line works and everything you need to know about it
really so let's go
the reference line I'm gonna show you how it works in fields so there's two
ways you can use a reference line and first we're gonna measure I'm gonna
measure two points on that the building next to us and I'm going to show we're
gonna find we're gonna see actually how that line of the building looks so
that's going to be nice exercise for us and the second thing we're gonna use
typed in coordinates to set our grid line and then I show you how to set some
points columns whatever you're gonna be setting off the grid line so guys we go
in as usual we gonna go number two programs and this time is program number
four which is reference line so press four just go down and press Enter so I'm
going to jump redline you're gonna press Continue and I'm gonna measure two
points on that building there I'm gonna rest it so I'm going to shoot elevation
probably cannot see the laser but are you gonna shoot elevation left-hand side
and then on the others they'll shoot it here and if you can see that's the
measuring to the second point so I press measure this time and that gonna create
our line you're gonna see point one and two which is five and six it doesn't
matter because I do it in the default job the length of the line you're gonna
see now and select the high reference we're gonna use point one you can use
point two and you can interpolate the line but this I'm going to show you when
I'm gonna be certain reference line with different levels which you're going to
be using to drainage we're gonna go now to measure point so you're gonna measure
point and now you can see I'm gonna be going on the line I'll use for idiom non
prism tracking so I'm gonna be checking how the how our elevation looks so let's
go I'm gonna go to the middle now so you can see it's
three four millimeters out of the line and if I'm going it's eight mil so we
can say guys are within ten mil really which is very good I'm going to just
shoot another point it's minus two this time so as I said in theory this because
I should that point first that one second that sets me this is Plus this is
minus so the elevation is not bad on the building you can consider buying the
flood there so that's the one way you're doing it just shoot the points and the
way you can use it is you can check the plumbness of the columns for instance
quickly just just shoot the two points and then check bottom and top what the
difference in the offset is and that going to tells you how off plumb the
column is so that's the quick quick way of doing this but the next one is I'm
gonna use the type in coordinates for our grid line here and then I'm going to
show you how we can find the position of something related to the grid line so
let's have a look so the other way as I said we're gonna pick up two coordinates
we typed in for the grid line so we're gonna go back to reference line and come
to this time I got the job gonna be site and grid where I put my coordinates so
continued job is set and now we're gonna we can actually it says measured to the
first point but we can type in the first point so I take them from the list this
time I got intersection of grid line one and may say press Continue and I'm gonna
use second point from the list which is intersection from the grid line A and
grid line B which gonna give me the grid line 1 so continue it tells me
the length of the grid line and the same story here with a point one point two
and interpolation so we're gonna get us no height this
time and we're gonna go measure points and as you can see our grid line gonna
be running at a little bit angle here so when I'm gonna be shooting you're gonna
see here so you see this time I'm six meter on the line and 22 millimeters
offices so when I'm looking to mark the grid line for instance I know this time
I need to go right a little bit to find my grid line and offset zero tells me
I'm on the line now and that's the same story as before on the right hand side I
got a plus on the left hand side I get - so you can see the laser oh yeah you can
see the laser there and I'm gonna go more right it will tell me that I'm
three seven six this time off the line so that's the plus offset and I'll go
left hand side I'm on the left hand side of the line and I'm on minus 500
this tells me I'm 500 of the line where I go closer here I'm on the table now so
you see this is only two meters I'm minus 400 so now I'm to go 400 right
to find the line
and I nearly got it to remiel and I'm on the line now so just to quickly tell you
one more thing before we start to setting out something as per this line I
quickly check the points and maybe just last more time here quickly the line is
here here I'm a plus 100 on the left-hand side I'm minus 500 and this is
quite important what I'm going to show you now you just need to remember this
but this simple mistake can make troubles as we go back again we're gonna
terminate we gonna terminate and we're gonna go our points again but this time
we're gonna choose that point first so 1/B gonna be first continue and 1/A
gonna be the second point which gives us exactly the same line the same grid
line just orientated opposite way so you're gonna go continue measure point
and now we measure our line is of course where it was offset zero but this time
if I go you can see right right right hand side from from my point of view
really but this is minus now because the line was set opposite way so now
actually I'm like this to the line so we really have to remember how you're gonna
set the first and the second point because that orientates
you all let's say like a local local system so that's it really and then I'm
going to show you setting out column for instance to the line so let's have a
look quickly on the drawing maybe
if I know this dimension is 3 meters and this dimension is 500 and that's what
you're gonna see on my drawing series how the setting our drawing tells you
the dimensions to the elements so if this is 3000 and this is 500 and my line
is orientated this way let's say so I'm gonna go back to the first set out when
this point was my first one and this was my second point so this I know now three
thousand millimeters from my point to the column edge that will be the length
of the line I'm looking for so that would be three thousand L I'm gonna be
looking for and because I'm going 1 to 2 that will be Plus on this side on this
side - so I'm gonna be looking for offset equals 500 to find this line so
let's have a quick look how are we going to be doing this so we're looking for
our column length 3000 I just need to quickly check come back to our first set
up our grid line was set one eighth
measure points so let's have a look now
length 3000 I'm on 5,000 so I know I need to come back so it will be actually
on our table here so this is 3000 I'm looking for the line 3000 but then at
the same time I know it's offset 500 so I should go right to find the offset 500
so as you can see now I'm going back to five our offset 500 and the line I have
to go back a bit 20 millimeters back and around 10 right
now so you can see now I'm just on my point 3500 that would be the corner of
the column so that's how we're gonna set and then to do this line obviously that
gonna be all our 500 offset and this line gonna be our length three meters so
just to show you a few options you can use is you can type in offset really
here and the line but you need to be careful with this because when you
offset the line your lengths gonna be different to what you have first as it
gonna go from the offset but if you agree this Square and then you just
wanna offset the line and the smart line
really you can use it one meter of the 2 meter wherever you need just if you mark
in the line and sometimes you can I see the I had a few times set in the holding
down bolts at an angle so when you got cut your Ref line you can rotate it and
are gonna give you the position of the line needed so guys I think that's it
for today's reference line video I hope you enjoyed it if you remember if you
got any questions just let me know leave in the comment below and don't forget to
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