welcome back to this series of videos me and Jake have been making on steel conduit in previous
videos we've looked at the conduit bending machine we looked at some of the fixings and boxes as well
as putting the thread onto a steel conduit what we up to today well Gary i'm going to show you
how to put a bend an 90 degree bend and a piece of steel conduit today for my fixed measurement
we're going to go 300 millimetres from the back of the bend i'm going to show you how to get it
perfect every time so no cutting it's going to be spot on 300 mm when you bend it yep that's right
so as i said Gary we're going to put a 90 degree bend in this piece of conduit the back of the bend
is going to be 300 millimetres from this threaded end so i'll mark that conduit there at 300 mm.
so i need to be sure that i insert the conduit into the bender from the end i've measured
from important you pull the arm up as well yeah or roll the bar you called it i think
roll bar yeah in the video that we did on understanding your conduit bending
machine so that's the measured mark going in that's right make sure i'm under the stop
what's the next stage so i'm going to take a piece of scrap conduit i'm going to insert
that into the former and i need to be sure that my mark lines up with the back end
of this i'm gonna use a set square so that is where the conduit would normally sit that scrap
piece of conduit is where this would sit when bent into position within the former that's right and
you're trying to get that mark on the back of the conduit yeah so that scrap piece there so
at the minute it needs to go in further yes yep so i'm going to make sure i'm 90 degrees
this piece of conduit is 90 degrees with the part with the conduit that we're going to bend
and then make sure the markers in line here so it needs to go in a little bit further
yep another way you can do it you can also just use a set square hold it on the edge of the former
right i like to do it this way yeah it gives you two two lines into square end and you've got both
the conduit that you're bending as well as a scrap piece and then you bring that mark in so when that
mark is lined up with the edge of the set square yeah that should be the back of the bend to 300
that's right and that should be in a perfect nice easy technique and now we're ready to bend
once i think i'm somewhere near i'm going to step back
have a look i can see that bends that needs to bend a little bit more so you'd like it to be
slightly under bent rather than over there it's easier to add than take out definitely
right i'm gonna see what that looks like so i bent this piece of conduit now Gary
i'm going to bring this in with my set square just to check it is 90 degrees
ah slightly under bent so it's touching at this bottom end and there is a gap running
up so that means you need to put a little bit more bending just a touch more yeah
okay it's always better to be slightly under bent and over bent that's right
making sure you put it back in exactly the same way as it was before correct okay so i just want
to slightly use not much more than the weight of my arm like i said we only need a touch in this
okay so that's a little bit so you felt that go I did you help that guy okay so if that's that
ninety i think that's a problem with students as they tend to go massive on the on the next one
exactly the same process now yeah bring this back in
so we're against a fixed point which is in case this wall set square in and it should run
and then so that is 90 degrees well so i think while we're here we might as well
measure from what effectively is now the back of the bend to the end and you told
me it was going to be how much 300 from the back of the bend so 300 mil let's see if it is
wow let's just check just no no jiggery pokery here no that's on the wall that's exactly 300
mil using that technique now imagine we had say a socket outlet down here
it might have been that we were measuring from say the back of the bend to the fixed point so do you
want to bring the socket in and show the 300 at a fixed point yep so it would be so effectively in
that position it would be too long so you'd have to lose all the threads on there unless if you
pull it down to half a coupler you'd actually measure that 300 from the back of the bend
to part way or halfway through that coupler what do your learners like to do that's right so i find
they prefer to measure it up to the accessory and trim it down half a coupler or 15 mil
but as you say you can do that from the beginning minus half a cup of measurement so if it was from
the back of the conduit to the center of the coupler the midpoint there 300 would be spot on
if you'd measured to the box itself you effectively gonna cut off half a couple
and then go again with the threads yep i know what you're thinking
and hopefully it isn't Jake's really smart what you're thinking is the same as me that's all
right he's picked a nice short measurement there but if that measurement was say over a meter long
that you were trying to put that 90 degree bend in it would crash into the floor so you've chosen
a nice easy one there Jake yeah don't worry Gary i've got the solution in the next video
we'll make that length of meter like you say and we'll see how it doesn't touch the floor we'll see