so in this presentation we will look at the skills required in order to kind of thread
onto a piece of steel conduit allowing us to connect into a spouted box such as a through
box or into a coupler so let's look at the skills required for that so before we start want to cut
the steel conduit to a desired length that length would be laid out in your paperwork
for your assessment piece for this presentation to cut it so you can see how we're going to cut
that steel conduit let's see how that goes so take a piece of steel conduit and we're
putting it in a round jaw vice within the actual conduit bending machine we do not want to put it
in a squared jawed vice because it will flatten the conduit itself so nice and tight but I mean
around your voice it's clamping all around the conduit itself is there squashing in the square
jawed vice I can now cut it to the desired length using my hacksaw the minimum TPI teeth per inch
on the blade should be 24 preferably 32 the lots of teeth when we're cutting a hard material such
as metal and when we cut wood where the teeth are very far apart when we're ripping through
pieces of wood so this is a hard material these are plenty of TPI so I've gone through at least
24 in this case you can see they set at a slight angles it's not horizontal it's slightly off
horizontal therefore I cannot touch straight down through the conduit I'm going to need to
roll or bend over slightly my hacksaw blade when I go I'm just going to show you how to cut it
again the length would be in the assessment itself so let's see how I'm gonna cut that
so I start making the nice groove into the conduit and then I can take both hands and
put them on the hacksaw sometimes it's worth just putting your foot into the conduit
maybe machine just stop it moving around a little bit let's see how we cut back now
once I was well into to the groove itself don't hand off to hold on to the conduit
itself it's that early few strokes that you're more like this slip and put the
hacksaw through your handed notes would just take the time to get that groove going
I'm gonna need to make sure once they be square so I'm gonna take my file the roughest file I've
got here at college and I will square that end off before I start the threading process
Square the end next I'm gonna need is my conduit stocks and dies okay they break
down there's only actual stocks we've got the guide in there the guide is 20 mm and
as is the conduit and the die itself is 20 mm as well so if i was doing 16 mm die and guide
32 mm die and guide we're going to go in dry first so I'm gonna got some purchase on just
to start that thread off wouldn't we get the thread started that will add the compound down
afterwards so it's important we go in with no cutting compound on to start with just so the
actual teeth bite into the conduit that gives a good starting position again it's worth putting
your foot on the machine to stop it pushing around the workshop let's see how we can cut
a thread onto here then make sure it's nice and tight and it's a small motion so I'm going to
put lots of pressure and then tiny motion as I go and see if I can cut that thread on
Ok I can just pull now and izzi's actually bitten on to the steel conduit itself therefore started
the thread take that off take my cutting compound and I've just need a bit on the
end okay around the end here that it don't kind of thread them all the way down here
but I've been any threading down here is going to cut a thread on the end so the compound is
on the actual end or the tip of the conduit what we're going to do now is once you get
it started two or three complete turns and then half a turn back you want to go see the
video presentation but swarf from fall out onto the floor we don't going to swarf the
build up in to actual die itself it'll give us a bad thread one two three and back so I
went three half a turn back three and now i am going to take it completely off and just give
it a little tap to get rid of the extras swarf that has build up in there we can see bits of
swarf falling on the floor at this stage a little bit more cutting compound it would almost melt on
because obviously the conduit is very warm now from the process and in we go again the thread
length depends on what you're going into so a spouted box will have slightly less threads
that one going into a coupler one of those of spouted box or I go almost all the way in
maybe one or two thread spare when i am going into a couple wanna go in just over half for
so its always nice when it spins on really easy it means what kind of quality thread back
not quite finished yeah still got to make sure the area in here that has no sharp burrs the
cable is going to go into here we don't want them to chafe against the actual conduit self so this
area here is very sharp we need to be burr that we can use either a de-burring tool we just use
around fall depending on the length of thread that you need before a spouted box I'd like you
to go all the way in tight when I look into it I can see about a thread where we haven't gone
fully in and if we run into a coupler I want you to go just over halfway so that's just the simple
process of putting a thread on the end of the condor skills that we'll revisit in the workshop