How to drill A Hole In A Glass Insulator
Drilling A Glass Insulator
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today are on the vintage ethic I'm going
to show you how to roll hole in a glass
insulator to use glass insulators in my
steampunk life projects I need to draw a
holing to the top of the glass insulator
this will allow me to insert a bulb
socket and the wiring needed to connect
to the base of the lamp here are the
supplies we need of course a glass
insulator I'm going to use plumber's
putty a 1/2 inch hollow cork diamond tip
drill bit let's use the drill press the
tool for measuring and I'm going to
improvise by using a paint scraper
in a pen and for safety I use hearing
protection and I finally you'll need
some water before we start I want to
point out the kind of diamond tip oh
poor fit I like to use the one I have
has a clean out vs. bits they don't
here's the reason why I like it
because I'm going to be drilling few of
these glasses insulators at the same
time each time I do that there's glass
residue left behind it a bit and the bit
that I'm using I can use a screwdriver
in the side slot to remove the residue
without the clean-out option you'll find
yourself banging the bit on the table to
remove that residue that's always be the
most important prep work is to mark the
center of the insulator so what I do
with the paint scraper is is to find the
outside perimeter of the top of the
insulator then it mark it on the tool
one on either side then I draw a line
across I will rotate that glass
insulator and draw a parallel line on
the other side now using those marks
that I put on the paint scraper I will
connect one side of that parallel line
to the far side
of the second line that I draw now we
rotate the glass connector and I will do
that again as you see I now have an X
and this should be the exact center of
the insulator now it's time to break out
the plumbers buddy we use plumber's
putty to make a dam around the top of
the insulator that dam will hold water
to keep the bit cool as I'm drilling you
want to make sure the lip of the dam is
high enough and that there are no holes
or leaks of course now that I've built
the lip subs I can move the insulator
over to my drill press I will now make
sure that I have the glass insulator
centered by doing a practice run by
moving the handle up and down once that
I have verified that as the Center will
pour water into that dam Hey look no
leaks where you put your drill setting
is important to the drill setting is
that rotation speed so what I like to do
to make sure that the drill bit is not
spinning too fast is to have it set
between 760 and 1150 RPM as you can see
here I have the belt on the second ring
on this knob and on the second knob I
like to have it on the first now it's
time to start drilling
[Laughter]
let the drill setting do the work as you
can see here I'm moving the drill press
up and down letting the water go into
the hole as I'm making the cut
[Applause]
[Applause]
[Applause]
[Applause]
once you've broken through you simply
take off the dam in the insulator is
ready for use
I will put the supplies that are used
down in my blog on the vintage edit calm
oh by the way if you've noticed I'm
wearing my Broncos t-shirt so if you're
in Omaha you need the best burger in
town make sure you head over to Broncos
thanks for watching
