Homemade Hole Cutter

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this video is me making lemonade and

lemon I started this thing right here

which is a circle cutting jig but I made

this specifically for cutting holes in

glass now while it did work reasonably

well for doing that I wasn't very happy

with the video came out so I thought

about it and my original idea was just

throw away that footage and you know

throw out the idea but I said to myself

is there something I could do with this

and then it occurred to me that I could

use this jig for cutting holes and wood

in exactly the same way except of course

wood is a lot softer than glasses so it

should work better I haven't tried it

yet I just finished making this new

cutter right here and what I'm going to

do right now is I'm going to step

through the details on how I made this

jig here now a lot of the footage that

you were going to be watching is the

original stuff for the glass cutter the

first thing I did was find a piece of

shaft that was big enough for me to do

this with but still fit up inside my

drill press and then I put it in my vise

and I cut it out to a handy way the next

thing I need to do with the rod is drill

a hole through for the quarter inch bolt

going and they used to mount the cutter

on so I've got a B Block in my drill

press cabinet I'll take that out and use

that the holder Rob while I drill it I

need to drill a pilot hole first I need

to place through the drill bit to start

on the round surface of the rod so I'm

going to flatten it out a little bit

with the file and then I can start


now to maximize or I guess you could say

to minimize the radius that this thing

can cut I'm going to make a recess for

the nuts in the shaft it's also handy

for locking the nut so that when I

tighten the thing up it won't trip now

for the cutter I'm going to be using an

old carbide tip saw blade and then I'm

going to make marks on here that line up

with the tooth so I can get the maximum

out of that I need to be able to drill a

hole through for the quarter-inch bolt

I'm getting a little bit ahead of myself

here before I finish cutting this out I

should drill the hole for the quarter

instead of rod that's going to hold this

onto the cutter this is still a little

bit big on the end here so what I'm

going to do is grind away a little bit

of the material that's behind the tube

and then I can put it together and put

it in the drill press and that's where

we are now ready to go okay now that you

know how it works I'm going to try it

out like I say I haven't tried this yet

I know it's going to work I just don't

know how well it's going to work very

similar to the glass one I got a feeling

that's going to be good though what I

have here in the drill press is a piece

of maple clamped down to the table I've

got a piece of plywood backing it up so

that when I do cut through it won't you

know cut into my table the whole

diameter is the smallest that this

cutter will go and as you can see it can

be stretched out but I'm not confident

and how strong the quarter-inch that rod

is for this application I think it would

need to be at least a harder grade of

steel or a heavier rod something thicker

maybe three-eighths of an inch would

work a lot better now a lot of people

probably saying there's nothing new here

John this is a fly cutter yes I know

it's a fly cutter but it's a homemade

one and that's what I'm showing here how

you can just grab whatever materials you

might have and put one together for next

to nothing

I think what happened here is the cutter

itself it's too wide up at the top here

and I got hung up in the kerf you could

say and then you could see the board

wobbling back and forth there and that

was a good indication that was happening

I think the better way for this to work

would be to use a heavier saw blade to

cut the tooth out of you get a bigger

tooth a stronger piece of metal behind

it and then make sure that you know

what's above the tooth is not angled

like this is here so won't get hung up

inside that cut also if you make the cut

in so far and say that's it and then you

can take it to the table saw and cut the

disc out that you want to keep or cut

the material that you want to keep so

you'll make the piece thicker to begin

with cut the hole or you can also do it

from the other side if you could

accurately line it up one of the

benefits of this type of thing here

though is that it will make that clean

disc in the middle there if it's working

properly that is and if you want to make

plugs for something poker chips maybe

you could do that with this you know

drill in so far in a bunch of places on

the piece of wood bring it to the table

saw and then cut those discs out and use

the disc