in this video presentation we're going to take a piece of pre-cut 600 mm long 20 mm galvanized
steel conduit and put a double set in it so we're going to produce a double set similar to this one
the reason we're practicing this skill is that we require it for our EAL assessment and we're
allowed a plus or minus five mm tolerance from the given dimension in the EAL assessed piece
in order to do this we're going to need to come up with a technique i've shown a technique on
the channel previously using two rulers in order to set a gap to make this double set
in this video presentation i'm going to show you a different method in order to put a double set
into a piece of steel conduit so i've got a piece of conduit cut to approximately 600 mm
and what i've done next is i've made a mark on it 150 mm from one end that's the point
of which we're going to pull our first bend on our double set i've made that mark using
a permanent pen however i could have used a scriber next we're going to take that mark
and put it into the conduit bending machine and pull approximately a 45 degree bend first
so i've inserted my conduit into the conduit bending machine with my arm up my 150 mm mark
is here in relationship to a mark that somebody's already put onto the former of the conduit bending
machine suggesting that might be the start of the bend it's not overly crucial for this but i've got
it approximately in that area and i'm going to pull my first bend to approximately 45 degrees
i'll pull the camera back and i'll insert this again just to show you what i'm doing and how to
get into conduit bending machine then i'll pull the first approximate 45 degree bend so let's
show you what i did with that first positioning of the mark against the actual former itself
when i get my conduit bending machine out i open up the legs i'm in this position we raise the stop
up into position we lift up the arm and now i'm going to position that mark we just discussed
approximately against a mark on the former that's suggesting it's the start of the bend and then we
can start pulling that first bend to approximately 45 degrees so let's put in the first part of the
bend so we're going to put our first part of one of these bends in so being this one here this is
the approximate 150 mm measurement pull that bend first so you might need to push down here
as you pull here in a previous video i've showed you a life hack how to make this easier if you're
struggling to pull down on it to pull a part of the bend check out that video steel conduit life
hack so we're just going to pull the first one like so okay so approximately 45 degrees before we
go on to the next technique element which requires to take the conduit out and move it to a bench
so i bought my steel conduit over to a bench the reason i brought it over to a bench is that i've
got a straight edge here so what we're going to do is going to bring the conduit down to make the
bottom of the conduit to the edge of the bench 75 mm remember i said for the assessed piece we could
be plus or minus five mil of that measurement so we're going to measure it at the moment to 75
mm so if i bring it down into position and i must make sure it runs parallel actually with the bench
i'm going to bring that down to 75 mm like so take a few minutes just to make sure you
get it lined up correctly because a mistake now will cost you later so that is just there
let's hold that always easier when the tripod's not in the way and i'm trying to work around it
okay so i've got that parallel just there at approximately 75 mm i'm going to take my pen
okay my permanent pen and i'm going to make a mark where it clashes here against the bench itself
hopefully you can see that so i'm going to do a mark here where it clashes against the bench
so i've got a line now just there okay i can increase that line and go over it again but that
is the point of which it clashed against the bench so in other words we'll move it down this way a
little bit that's the point of which it needs to be bent back so if we get that line appropriately
on our former we should find that we get to set this at a roughly 75 mm by bending it back in
that location let's go back to the conduit bending machine next okay so i brought the camera in nice
and close for this part and i'll pull back again and just show you from a distance what i'm doing
so the mark that i made against the table the point of which it clashed with the table when
i had a set at 75 is the point i'm going to need to put against the former in the appropriate place
at the minute i'll leave the arm down okay i'm just going to show you how i'm going to position
that so we take it through and we see that line there okay we've got that line there and if i was
to have it here we can see it's nowhere near the former miles away i need to match this line up to
where it clashes with the former in order to be the point of which it pulls back into position
it's also crucial that i get this pointed in the right direction as well that we don't want
it rolling over and when i pull the camera back i'll reiterate the fact that we must make sure
that that is pointing in the right direction this line here is crucial so i'm going to bring
it down to the point of which that line will roll into position and clash against the former
so you can see there the line there maybe a fraction further in we've got that line here
clashing against the 20 mm former of the conduit bending machine so just show you that again
there's my line i roll it into position and it clashes against the actual form
itself so allegedly when i pull this to the other 45 degrees or make these two parallel
it should mean that we've created a gap approximately 75 mm plus or minus five
for our learners okay so that's what we do now so pull the camera back and i'll show you that again
okay so let's go back through that again let's put the conduit into the conduit bending machine
and line this one up with the former itself so my marks will be lined up as i just showed you
against the former so the arm goes up i feed my conduit through
and i now do that lining up process we just discussed where my line
falls against the side of the former i've now got to be really careful that
i line my conduit up that it doesn't fall to the left or fall to the right
and then i'm going to pull my next bend i'm going to try and make sure that this one is parallel
with this one however for this video presentation i'm going to underpull it to start with because
when i get to the bench i want to reiterate some points that my learners miss and obviously we
don't want to miss them in the future so i'm going to under pull it and then take it to the bench and
see what's happening with the two parallel surfaces when i under bend it and the common
mistake people make about the bend i've just made so i'm going to pull this one and i'm suggesting
that's probably under bent without spinning around coming back spinning around coming back but let's
take it to the bench and see what goes wrong when people under bend it and then take it to the bench
so we're back over here at the bench having just made our second bend and what people do then is
they place their second bend on the parallel line we just work from so we put it on there and we go
it's an absolute disaster i must have over bent this one because this is now dipped down at the
top remember the rule you work your way down the conduit every time you've bent a piece that piece
is correct you move to the next piece and you bend away so the piece i must have to work on
is this second bend let's put the first piece in the correct place so that would be the correct
place parallel with my surface so that is actually correct now when we look at the bend we've just
had it isn't over bent it's actually under bent with the first piece in the correct position
we need to take it back to the conduit bending machine and put some more bend in here
in order to make these two surfaces parallel and hopefully have a gap 75 mm plus or minus five mm
so that was really crucial wasn't it because we did the second bend we tend to put that one in
the correct position making the first one look incorrect the first bend we were happy with and
we left it we're working on the second bend so we always have to reiterate the first bend is correct
and look at what we have to adjust on the second one we also thought we'd under bend it so how come
when we get to the bench it's actually looks over bent i've got Marcus behind me now and Marcus is
going to give me the nod the wink and the flick when he thinks we're allegedly parallel with these
two surfaces rather than me spinning around and back again this stage i'd like to apologize for
the lack of breath i've got i've got a breathing issue at the minute one or two people have
commented on a few videos that i sound like i'm out of breath it's actually i've got a little bit
of an issue a medical issue that i need to solve in the coming weeks so i'm going to lift up my arm
of my conduit bending machine and put it back in and make sure it's located correctly on my cable
right so it's seated back in it's correct i'm now looking to get these two no pressure markers who's
off camera now he's bending down he's he's under pressure so i'm going to pull these two parallel
so we definitely need some more so Marcus using that's about so we're going to go with that
and see if that is parallel with the surface that we need if not we'll come
back and readjust it again but you can see how the technique is developing we're only working on
the second bend in order to make this double set correct
okay then so now we've got it bent correctly so this one now is parallel with the surface
and we've set a gap from the bottom of the conduit to the edge of the actual bench itself
which you want to be approximately 75 mm thereabouts with this technique as you look at
it now you can see we've got nicely in the correct plane so we've actually got a consistent gap in
this section here all it takes now is to measure that gap again trying to get around the tripod
i've probably just knocked it there and you can see from that yeah we're 75 mm okay so we've got
approximately 75 mm gap using a technique that required us to make a mark originally against the
side of the bench and then put that mark against the 20mm former on our conduit bending machine
so that's the second video we've produced in order for a double set and a piece of
20mm steel conduit to a given dimension it helps us with the assessed piece behind us
we managed to work down the conduit remembering key that once we've bent a piece of conduit and
we set it what we believe is correct we move to the second bend the second bend is what you adjust
next we don't go and readjust the first bend so as always i hope this video has been some help