Announcer: MAJOR FUNDING FOR "THE WOODRIGHT'S SHOP" IS PROVIDED BY: [CAT YOWLS] [CAR ALARM] Announcer 2: WHEN THE UNEXPECTED HAPPENS, STATE FARM HAS THE TOOLS TO GET YOU TO A BETTER STATE.
PROUD SPONSOR OF "THE WOODRIGHT'S SHOP."
HEY, WELCOME BACK TO "THE WOODRIGHT'S SHOP."
I'M ROY UNDERHILL.
SO GLAD TO HAVE YOU BACK WITH ME AGAIN TODAY.
YOU KNOW, IN AN OLD SHOP I WORKED IN, LONG, LONG TIME AGO, THERE WAS THIS OLD MAN WHO'D COME IN CARRYING WITH HIM HIS SAW SHARPENING VICE, HIS SAW CHOPS.
THIS OLD GUY, ITALIAN, VERY OLD WORLD, VERY RELIGIOUS.
YOU KNOW, IF WE CUSSED ANY IN THE SHOP, HE'D GET RIGHT ON US.
SO, HE WAS A WONDERFUL SAW SHARPENER, HE'D COME IN EVERY 2 OR 3 WEEKS, AND HE'D HANG UP HIS HAT, YOU KNOW, BY THE WINDOW, AND HE'D TAKE OUR SAWS, ONE BY ONE, AND SET THEM IN THE SAW CHOPS, AND DO THIS WONDERFUL JOB, VERY, VERY EFFICIENTLY, BEAUTIFULLY, SHARPENING ALL THE TEETH OF OUR SAWS, SO, THEY JUST CUT SO EASY!
OH, IT MADE A BELIEVER OUT OF ME, I MUST SAY, AS HE WORKED AWAY, THERE WAS JUST SOMETHING TO IT.
NOW, IT WAS SO MUCH TO IT, SOMETHING IN HIS TECHNIQUE, THAT MADE OUR SUPERVISOR, OUR SHOP FOREMAN, VERY JEALOUS.
HE KEPT LOOKING OVER, HE KEPT TRYING TO SPY ON THE GUY.
YOU KNOW, HE'D PRETEND TO BE WORKING OVER THERE, YOU KNOW, LOOKING OVER, AND THE OLD GUY WOULD LOOK OVER AND SEE HIM SPYING, ALWAYS MADE HIM MAD.
BUT ANYWAY, THAT'S NOT THE POINT!
THE POINT IS HE HAD THESE SAW SHARPENING VICES.
I'M GOING TO TAKE A LOOK AT THAT.
IT'S ACTUALLY MY SUPERVISOR, I GUESS, THAT HAD THE VICES, DIDN'T HE, SPYING ON THE FELLA!
NEVERTHELESS, THIS IS A SAW SHARPENING VICE IN THE TRADITIONAL FORM, WITH THE MORTISE AND TENON JOINT DOWN HERE, TO HOLD THESE STRETCHERS, AND THEN HINGED RIGHT THERE WITH THIS SLOPE, AND IT OF COURSE PUTS THE PRESSURE ON THE SAW RIGHT HERE WITH THIS WONDERFUL LITTLE NUT, WITH THE RAM'S HORN, OR ONE HORN, AND THEN YOU CAN SEE THE WAY THE CHOPS THEMSELVES, THE JAWS, ARE HELD TAPERED BETWEEN THOSE TWO PIECES THAT HOLDS THE FULL LENGTH OF YOUR HAND SAW THERE, AS HE WOULD SHARPEN IT.
SO, IT'S GREAT.
SO, HE'D SIT THERE, AND HE'D SHARPEN IT, AND STAND THERE RIGHT OVER BY THE WINDOW, AND SHARPEN AND SET, AND IT WAS NICE.
NOW, HE HAD TO BE BY THE WINDOW AND LEAN IT AGAINST THE WINDOWSILL, BUT THERE WAS ALWAYS JUNK THERE.
NOW, I BET HE WISHES HE HAD... [LAUGHS] THIS IS ANOTHER SAW SHARPENING VICE MY FRIEND PETER ROSS FOUND.
NOW, LOOK AT THIS: VERY SIMILAR KIND OF FRAME HERE, BUT LOOK WHAT IT HAS.
IT HAS A SET OF LEGS THAT COME OUT THE BACK, THERE, ALL RIGHT.
AND SO, YOU CAN REACH AROUND WITH YOUR FILE HERE, AND THE SAW IS LEANING PERFECTLY AWAY FROM YOU, AND YOU FILE YOUR SAW.
SO, HE COULD HAVE THIS, SO, HE COULD KIND OF PUSH HIMSELF SOMEWHERE WHERE THE SUPERVISOR COULDN'T SEE HIM IF HE HAD THIS THING.
AND THE ODD THING IS, WITH THIS PARTICULAR SAW SET, ONCE YOU'VE SHARPENED IT AND YOU HAVE THOSE TEETH LEANING AWAY FROM YOU, NOW YOU WANT TO CHANGE IT, YOU WANT TO SET THE SAW, BUT, DO YOU--YOU KNOW, THAT'S WHERE YOU BEND THE TEETH OUT IN EITHER DIRECTION, LIKE THAT, SO THAT IT CUTS CLEAR.
WELL, TO S THE SAW, YOU HAVE TO LEAN OVER THIS WAY, OR WALK AROUND THE FAR SIDE.
BUT LOOK WHAT THIS SAW SHARPENING VICE DOES: IT HAS A SECOND SET OF LEGS ON THE FRONT, OR A SECOND SET OF LEGS ON THE BACK, IF YOU WANT TO PUT IT THAT WAY.
AND YOU SEE HOW IT CHANGES POSITION, THE WHOLE THING JUST SWINGS.
NOW IT'S AIMED PERFECTLY AT YOU FOR SETTING THE TEETH, 'CAUSE YOU CAN SEE RIGHT DOWN ON THEM, AND BEND THEM EQUALLY ONE WAY AND THE OTHER.
NOW, WHO WOULD HAVE COME UP WITH THIS THING, SOMETHING THAT'S PERFECT FOR SETTING, AND PERFECT FOR SHARPENING?
SO, THERE WE GO, IT SWINGS THIS WAY AND THAT WAY, AND ALSO HAS A DIFFERENT WAY OF LOCKING THE SAW IN PLACE.
WHEN YOU LOOK HERE, THERE'S A CAM, YOU SEE THIS LEVER, THIS CAM ROCKS, AND WHEN YOU PUSH IT UP THERE, IT TIGHT--EXPANDS THESE ENDS UP THE RODS THAT ARE HELD BY THE BOLTS, THESE BECOME THE FULCRUM, AND THEN THEY SQUEEZE THE SAW TOGETHER.
SO, IT'S JUST THIS GREAT MECHANISM, VERY LIGHT.
YOU MAY NOT NEED ONE, BUT THERE ARE SOME TECHNIQUES IN BUILDING A REPLICA OF THIS.
I'M GOING TO SHOW YOU ONE MORE THING THOUGH, LOOK AT THIS.
DOWN HERE, YOU SEE I HAVE THE SAW HANDLE, AND I'M ABLE TO GRIP IT ALL THE WAY UP TO THE END OF THE SAW.
NOW, WHY IS THAT?
THAT'S BECAUSE THERE'S A HOLLOW CUT UNDER HERE, YOU SEE THAT HOLLOW?
SO THE HANDLE OF THE SAW WILL FIT DOWN INSIDE THAT HOLLOW, LIKE THAT, AND THEN YOU CAN CLAMP IT UP.
SO, YOU'VE GOT A HOLLOW CUT UNDERNEATH THERE, AND IT ONLY GOES BACK ABOUT AN INCH OR TWO, 'CAUSE THAT'S ALL YOU NEED TO HAVE FOR THAT HANDLE TO FIT DOWN INSIDE THERE.
SO, I TELL YOU WHAT: I'VE BEEN WORKING ON A REPLICA OF THIS ONE.
I'M GOING TO PUT IT ASIDE HERE, AND SHOW YOU THE JOINTS ON THE REPLICA, OH!
SO, ANYWAY, THE SUPERVISOR WHO KEEPS SPYING ON HIM GOES OUT ONE DAY TO PICK UP A LOAD OF LUMBER, AND THE OLD GUY CALLS US OVER, HE SEES THAT THE SUPERVISOR'S GONE OUT.
THIS OLD, VERY OLD, VERY OLD SCHOOL ITALIAN GUY, AND HE SAYS: "ALL RIGHT, EVERYBODY, COME OVER HERE, COME OVER HERE, HE'S A-GONE."
AND HE SAYS: "LOOK, I'M A-GOING TO SHOW YOU HOW TO SHARPEN A SAW."
AND HE JUST TAKES US THROUGH IT, YOU KNOW, HE JUST SHOWS: "OKAY, YOU DO THIS, DON'T WORRY ABOUT THAT, THAT'S OKAY.
JUST WORK LIKE THAT, THAT'LL MAKE YOU A PERFECT SAW."
HE SEES THE SUPERVISOR COMING, AND HE SAYS: "OKAY, NOW, EVERYBODY HERE KNOWS HOW TO SHARPEN A SAW, "EXCEPT FOR THAT GUY.
"SO, YOU GO AHEAD, YOU SHARPEN ALL YOUR SAWS, I'M NOT COMING BACK.
"BUT I TELL YOU, ANYBODY WHO TEACHES THAT BLEEKETY KOFF SON OF A HOSHEY HOW TO SHARPEN A SAW, HE GOES A-STRAIGHT TO HELL."
OKAY, SO, UH, HE NEVER CAME BACK, AND WE NEVER DID SHOW THE BOSS HOW TO SHARPEN.
NEVERTHELESS, LET'S LOOK AT THE JOINTS HERE.
THIS IS THE MORTISE AND TENON JOINT THAT HOLDS IT TOGETHER AT THE TOP THERE.
SO, WE GOT THE CHOPS COMING THROUGH, AND THE MORTISE AND TENON THROUGH THE TOP THERE.
AND I HAVEN'T BEVELED THIS BACK ON OFF, YOU SEE I DO IT-- CUT THE MORTISE AND TENON, AND THEN PLANE IT OFF FLUSH LIKE THAT.
AND THEN DOWN HERE, WE'VE GOT A BRIDLE JOINT.
YOU CAN SEE, THERE'S A BRIDLE JOINT RIGHT THERE, AND THAT'S WHAT I WANT TO HAVE A LOOK AT, WE'LL SEE HOW TO DO A BRIDLE JOINT.
AND DOWN AT THE BOTTOM, LET ME BRING THIS UP HERE.
THIS IS A--OOP, THIS IS A...
UH, WHAT DO WE CALL IT?
A HALF LAP JOINT.
SO, I'VE GOT A HALF LAP JOINT WITH THE GLUE ON IT, AND STILL THE NAILS IN PLACE THERE.
SO, WE'LL CLEAN THAT UP, AND THAT'S OUR HALF LAP JOINT THAT HOLDS IT TOGETHER.
BUT I WANT TO SEE THIS, UH, START WITH A COUPLE OF THINGS THAT ARE COOL ABOUT GOOD LESSONS IN HOW YOU MAKE SOMETHING LIKE THIS.
ONE THING IS THAT THE WHOLE THING IS AT 9 DEGREES.
LOOKS LIKE SOME KIND OF JAPANESE TEMPLE THING.
IT'S AT 9 DEGREES COMING IN, SO, YOU TAKE 20 OR SO OF THESE AND PUT THEM AROUND, ONE BESIDE THE OTHER, AND THEY WOULD MAKE A COMPLETE CIRCLE.
SO, ALL THESE JOINTS, THE HALF LAPS AND MORTISE AND TENONS AND EVERYTHING, IS AT 9 DEGREES OFF OF A RIGHT ANGLE.
SO, WE WILL START WITH THAT.
I'VE GOT A MITER BOX OVER HERE WITH A SHARP SAW IN IT, AS LUCK WOULD BE, AND HERE'S SOME WOOD.
LET'S JUST DO THE...ALL RIGHT, LET'S DO THIS.
I'M GOING TO CUT THIS IN.
NOW, I'M GOING TO SHOW YOU SOMETHING THAT 9 DEGREES IS SIGNIFICANT, IN THAT, THAT IS A SETTING ON THE MITER BOX.
IF I UNDO THE CAM RIGHT HERE, YOU CAN SEE THERE'S A LITTLE LOCKING MECHANISM THAT HOLDS IT RIGHT AT ZERO, AND SWING IT OVER, THERE'S A PLACE WHERE THAT LITTLE LOCKING MECHANISM WILL GO INTO, AND THAT LOCKS IT INTO PLACE AT EXACTLY 9 DEGREES.
SO, THAT MADE ME THINK THAT, YOU KNOW, THIS THING'S DESIGNED AT THAT ANGLE, MAYBE IT WAS MADE IN A SHOP WITH, UH... SAWS LIKE THIS.
YOU KNOW, IT'S HARD TO TELL, THAT'S SOMETHING I'M ALWAYS INTERESTED IN, WAS IT SOMETHING MADE BY HAND--AND THERE'S MY MITER, ALL CUT OFF.
IF IT WAS SOMETHING MADE BY HAND OR SOMETHING MADE A BY MACHINE, YOU KNOW, IN A BIGGER SHOP LIKE THAT.
SO, I'VE ALREADY GOT THE TENON SAWN, I'M GOING TO DO THE MORTISE NOW.
AND , LET'S SEE, SO, THIS WILL HANG LIKE THIS, AND I'VE GOT A... [LAUGHS] WHAT HAVE I GOT?
I'VE GOT MY FACE SIDES DOWN, AND I'LL JUST OVERLAP THEM, AND DO IT LIKE THIS.
NOW, I'D ALREADY CUT MY TENON RIGHT THERE, BUT LET'S CUT THE OTHER PART OF THE BRIDLE JOINT.
I'LL BRING THAT AROUND WITH THE SQUARE, FROM THE FACE SIDE NOW, AND AGAIN WITH THE SQUARE FROM THE FACE SIDE.
THERE WE GO.
AND THEN ONE MORE BEVEL THIS WAY.
NOW, WE'RE GOING TO--WELL, ACTUALLY WE DON'T NEED IT, BECAUSE ALL WE'RE DOING IS THE BRIDLE JOINT, WE'RE DOING THE SOCKET THAT THIS GOES INTO.
SO, NOW I'LL TAKE, FROM THE FACE SIDE, THE GAUGE WHICH I HAVE SET TO THE WIDTH OF MY CHISEL THERE.
YOU CAN SEE I'VE GOT THOSE TWO TEETH THERE SET FOR THE WIDTH OF THE CHISEL, AND CENTERED ON THE WOOD BY THIS METHOD.
AND, YOU KNOW, IT'S NEVER GOING TO BE PERFECTLY CENTERED, THAT'S WHY WE HAVE THE FACE SIDE, BUT YOU GET CLOSE TO IT BY POKING IN, MAKING TWO LITTLE DOTS THERE, AND THEN COMING IN FROM THE OTHER SIDE, AND POKING IN, AND SEEING IF THE TWO DOTS ARE CLOSE.
AND THEY CERTAINLY ARE IN THIS CASE.
THE PROBLEM IS, THE WOOD IS NEVER ALL THE SAME THICKNESS, SO, WE ALWAYS GO FROM ONE FACE SIDE.
SO LET ME SEE WHERE THAT IS...OVER HERE, OKAY.
SO, THAT MEANS WE ENGAGE THE... [LAUGHS] MORTISING GAUGE FROM ONE SIDE ONLY, AND WE COVER IT ALL THE WAY AROUND, PUTTING THE TWO LINES THAT WE'RE GOING TO CUT OUT.
AND, THERE WE GO, LIKE THAT.
NOW WE'VE GOT OUR LINES, SO, JUST DARKEN THEM A LITTLE BIT, OAK IS HARD TO TELL.
AND I'M JUST GOING TO CUT FROM ONE SIDE, SO, I PROBABLY DIDN'T EVEN NEED THE LINES ON THE OTHER SIDE.
NEVERTHELESS, HERE GO, WITH A RIP SAW I'M GOING TO CUT WITH THE KERF OF THE SAW JUST ON THE INSIDE OF THAT LINE, TOUCHING BUT LEAVING IT.
OH, THERE WE GO.
ALL RIGHT.
AND I'M GOING TO WATCH THE LINE ON THE SIDE TO SEE THAT I COME DOWN JUST SQUARE, OKAY.
AND THEN ON THIS SIDE HERE, AGAIN, TOUCHING BUT LEAVING THE LINE, THAT'S THE KEY.
ALL RIGHT, AND AGAIN, DOWN...YEAH, ALL RIGHT.
SO, NOW WE JUST HAVE TO GET THAT WOOD OUT FROM IN THERE.
SO, WE'LL DO THAT ON THE BENCH TOP, USING THE BENCH, UH, THE HOLDFAST HERE.
SO, I'VE GOT THIS IRON HOOK THAT GOES LOOSE INTO THE BENCH, AND WHEN WE HIT IT, IT GETS COCKED TO ONE SIDE, AND HOLDS THE WOOD DOWN.
AND I'LL TAKE THE CHISEL, AND WE'LL STEP AHEAD OF THE LINE ON THE FIRST HIT.
SO, TAKE THAT, NOW SWING YOUR HAND DOWN, AND POP THAT PIECE OUT.
NOW, ONCE YOU'VE DONE THAT FIRST HIT, YOU'RE NOT GOING TO BE HAVING ENOUGH WOOD ON THAT SIDE TO PUSH THE CHISEL BACK WITH THE WEDGING ACTION, SO, YOU'RE ABLE TO NOW GO RIGHT ON THE LINE.
WE CUT THAT, AND THEN CUT THE NEXT STEP DOWN.
SO, IT'S JUST THIS INCREMENT ALL THE WAY DOWN.
AND VERY OFTEN YOU'LL BORE OUT THIS MIDDLE PIECE, BUT...AND THEN TRIM IT UP WITH A CHISEL, BUT THERE'S NO NEED WHEN IT'S THIS SMALL.
ALL RIGHT, SO, WE'RE ALMOST THROUGH.
THIS IS SOME NICE RED OAK HERE.
AND ALMOST THROUGH ON THE OTHER SIDE.
I DON'T WANT TO GO ALL THE WAY THROUGH, BECAUSE I'D GO INTO THE BENCH TOP, SO, UNDO THE HOLDFAST, SWING IT AROUND... AND THERE YOU GO.
AND THIS COMES DOWN AGAIN, FOLLOWING THAT ANGLE.
ALL RIGHT, SO, THAT'S THE BRIDLE JOINT, THAT'S THE SOCKET THAT WE'RE AFTER.
NOW LET'S DO THE TENON THAT GOES IN HERE.
NOW, I'VE ACTUALLY CUT THE TENON.
AND YOU CAN SEE HERE, I'VE GOT THE WIDTH OF THE CHISEL HERE IN THE SOCKET, AND THE WIDTH OF THE CHISEL IN THE TONGUE.
I'M JUST GOING TO TAKE THIS BACK OVER TO THE MITER BOX, CUT OFF THOSE SHOULDERS.
AND WE'LL SEE ANOTHER TENON, IT'S JUST STILL JUST RIPPING.
WE'LL SEE ANOTHER TENON IN JUST A SECOND HERE, THAT WE NEED TO DO FOR A DIFFERENT PART OF THE JOB.
SO, LET'S SET THIS JUST TO THAT LINE.
ALL RIGHT.
AND YOU CAN IMAGINE, WITH A SAW THIS BIG AND THIS SHARP, IT CAN JUST GO RIGHT ON THROUGH IF WE GIVE IT ONE STROKE TOO MANY.
NOW, OF COURSE, THE ANGLE'S GOING THE WRONG WAY, SO, WE HAVE TO RESET THE CAM, SWING IT OVER PAST ZERO, OVER TO 9 DEGREES, WHERE IT LOCKS AGAIN, AND SAW RIGHT ON THE LINE AGAIN.
SO, WE GET GOOD, EVEN SHOULDERS DOWN, AND THERE WE ARE, OKAY.
SO, NOW WE'VE GOT OUR TENON READY TO GO.
ALL RIGHT, LET'S TAKE IT OVER AND FIT IT IN THE MORTISE.
SO, THIS IS GOING TO GO LIKE THAT.
SO, HERE'S OUR SLOPE OUT OF THE... AND WE'LL SEE IF IT FITS.
NAH, IT NEEDS A LITTLE BIT OF TRIMMING.
SO, YOU CAN SEE, IT'S TOO TIGHT, AND SO, I'LL GET SOMETHING TO WORK ON--HERE WE GO, A LITTLE BENCH HOOK, AND SHEAR IT DOWN.
SO, WE NEED JUST A LITTLE BIT MORE SPACE IN THERE, 'CAUSE IT'LL MUSHROOM IT OPEN.
IT WON'T SPLIT IT, BUT IT'S ENOUGH TO PUT THAT TOP UNDER TENSION.
SO I'LL GIVE IT JUST A LITTLE BIT MORE.
ALL RIGHT.
[BLOWS] AND WE'LL GET THE POINT HERE, THERE WE ARE.
SO, THERE'S OUR MORTISE AND TENON JOINT THAT STAYS OPEN ON TOP.
IT IS A BRIDLE JOINT.
ALL RIGHT, SO IT'S A PRETTY DARN STRONG JOINT IN THE OAK THERE.
GOOD, SO THAT'S OUR FRAME.
NOW, THERE'S ANOTHER THING WITH THE FRAME THAT, YOU KNOW, MADE ME THINK, IS THIS THING HAND MADE OR WAS IT MADE IN A SHOP?
AND IT'S THIS, IT'S THE BEVELING, THE THING IS ALL BEVELED.
IT'S EASIER TO SEE ON THIS ONE THAT I'M--THE REPLICA THAT I'M WORKING ON HERE.
AND THAT'S HOW I LEARN, YOU DO A REPLICA OF THESE THINGS.
HERE'S THIS FRAME.
THE LONG STRIPS HERE, THEY'RE LIKE 1x1 3/4, THEY'RE BEVELED VERY PRECISELY ALL THE WAY DOWN, YOU SEE HOW THE CORNERS ARE TAKEN OFF?
SO, ACTUALLY THEY'RE CHAMFERED, WE WOULD SAY.
IF IT WENT DOWN TO A KNIFE EDGE, IT WOULD BE A BEVEL, THIS IS A CHAMFER ALL THE WAY DOWN.
SO, LET'S TAKE A LOOK AT DOING THAT, IT'S A REAL FEATURE OF THIS KIND OF WORK.
AND, LET'S SEE.
ALL RIGHT, HOW DO YOU LAY THAT OUT?
WELL, IF YOU USED A SCRATCHING TOOL, YOU WOULD HAVE A SCRATCH TO LAY OUT THOSE LINES.
SO, WHAT I'M SAYING IS, DO WE LAY LINES DOWN THE LENGTH OF IT?
BUT INSTEAD OF USING A GAUGE, A COMMON GAUGE, WE'D USE INSTEAD A PAIR OF DIVIDERS HERE.
I'LL OPEN THEM UP A LITTLE BIT, AND THIS WILL PENCIL LINE ALL THE WAY DOWN, THERE WE GO.
PENCIL LINE THE EXTENT OF THE BEVEL THAT WE WANT.
SO, ESSENTIALLY, IT'S A GAUGE WITH A PENCIL IN.
HERE'S ONE SET A LITTLE SHORTER FOR THE SIDES.
IF WE HAD USED A SCRATCHING TOOL, WE WOULD HAVE A SCRATCH RIGHT AT THAT CORNER, AND IT WOULD LOOK UNSIGHTLY.
SO, HAVING DONE THAT, NOW WE'LL TAKE A COARSE PLANE, AND BRING IT ON DOWN...
THERE WE GO.
AND GET TO A JOINTER.
SO, YOU CAN SEE, YOU CAN DO THIS BY LAYING OUT LINES, AND BRINGING IT DOWN TO THOSE LINES WITH THE PLANE, BUT THERE'S, YOU KNOW, IT'S PRETTY MECHANICAL.
[LAUGHS] YOU'RE DOING A REPEATED MOTION, IT'S NOT LIKE YOU'RE FITTING VERY CAREFULLY, SO, I WAS THINKING, HOW WOULD YOU DO THAT WITH HAND TOOLS?
WELL, IT FINALLY GAVE ME A CHANCE TO USE THIS THING.
HERE'S A PLANE WITH AN ATTACHMENT ON IT, GOT TO HAVE THEM ATTACHMENTS.
THIS IS A JOINTER GAUGE, IT'S A FENCE THAT FITS ON THE SIDE OF YOUR JOINTER PLANE, THESE LONG PLANES, AND IT'S ADJUSTABLE IN ITS ANGLE RELATIVE TO THE BED OF THE PLANE.
SO, IT CLAMPS ON, AND THEN HAS THIS LITTLE ARM THAT ADJUSTS THE ANGLE OF THE FENCE.
SO, I'VE GOT THAT READY TO GO.
AND IF THIS WAS WIDE ENOUGH, I'D BE ABLE TO HANG THE BOARD OVER THE EDGE OF THE BENCH AND DO IT, BUT BECAUSE IT'S NOT WIDE ENOUGH TO FIT BETWEEN THE DOGS, I'LL LAY IT ON ITS SIDE LIKE THAT, AND YOU CAN SEE NOW HOW THE FENCE RESTS RIGHT ON TOP OF THE EDGE, AND KEEPING IT ATTACHED, AND KIND OF RUNNING YOUR KNUCKLES ON THE INSIDE TO GIVE A LITTLE BACK PRESSURE, WE'LL WORK RIGHT ON DOWN.
AND SO, WE STILL GO TO A PENCIL LINE, THERE'S NO DEPTH STOP, BUT THERE'S STUFF LIKE THIS THAT'S KIND OF HALFWAY BETWEEN SHOP MADE WITH MACHINES, MANUFACTURED IN OTHER WORDS, AND HAND DONE ONE OFF.
THE ONLY WAY WE'LL KNOW IF THIS IS A MACHINE SHOP MADE, OR JUST ONE OF ONE, IS IF WE FIND ANOTHER ONE LIKE THIS.
ALL RIGHT, LET'S TAKE A LOOK AT SOMETHING ELSE NOW.
I WANT TO SEE ANOTHER MORTISE AND TENON JOINT THAT'S BACK IN HERE, OF A DIFFERENT TYPE, AND WE'LL SEE HOW TO DO THE TENON A LITTLE DIFFERENTLY.
AND IT'S RIGHT HERE ON THIS CAM.
DO YOU REMEMBER WHAT THIS CAM DOES?
IF WE TURN THE CAM, THERE'LL BE A HANDLE DOWN HERE, AND IT EXPANDS THE SPACING BETWEEN THOSE UPRIGHTS THERE, IT MAKES THEM PUSH FARTHER APART, SO THAT THE LEVERAGE MAKES THE TOP GRAB.
SO, TURNING THIS CAM, THIS OCTAGONAL PIECE HERE, ROUGHLY OCTAGONAL, THAT'S WHAT MAKES THE-- IT GRIP THE SAW.
SO, LET'S SEE HERE, I'M GOING TO TAKE IT APART AGAIN, AND YOU CAN SEE DOWN HERE, THE TENON--THE PIVOTING POINT IS JUST A TENON ON THE END OF THE ROD THERE.
YEAH.
SO, THAT IS WHAT WE'RE GOING TO LOOK AT NOW.
SO, YOU CAN SEE HOW IT'S BEVELED, OBVIOUSLY USING THE PENCIL LINE BEVELING, BUT HOW DO YOU CUT THAT TENON?
WELL, ON THE ORIGINAL, IT WAS TURNED ON A LATHE.
THIS WAS, UH, WE'RE NOT GOING TO DO THIS ON THE LATHE.
OBVIOUSLY THERE WAS A LATHE INVOLVED IN TURNING THAT OUT, BUT I'VE GOT ANOTHER PIECE WE'RE GOING TO LAY OUT.
HERE'S A CAM, READY TO GO.
SO, WE'RE GOING TO START BY FINDING THE CENTER.
SO, I TOOK A RECTANGULAR PIECE, BEVELED IT DOWN, BUT NOW WE'VE GOT TO FIND THE MIDDLE OF IT.
SO, TAKE THE DIVIDERS, RUN THEM, AND EXPAND THEM A LITTLE BIT... ALL RIGHT, AND, SEE, BY JUST COMING IN FROM ALL SIDES, WE... [LAUGHS] KIND OF ZERO IN ON THAT CENTER.
WHERE'S THE CENTER?
WELL, IT'S IN THE AVERAGE OF ALL THOSE MARKS.
SO, NOW WE CAN TAKE THE OTHER PAIR OF DIVIDERS, WITH THE PENCIL IN IT, SET THAT RIGHT IN THE CENTER, AND CIRCLE OUR 1/2 INCH DOWEL THAT WE WANT IN THE CENTER.
SO, WE FOUND THE CENTER, NOW WE'VE DEFINED--OOPS!
DEFINED THE PERIMETER OF THE DOWEL THAT WE WANT THE PIVOT POINT ON THE END.
SO, THAT'S GOOD.
NOW, WE HAVE TO HAVE A SHOULDER, THAT'S CRITICAL, SO AGAIN, WE'LL TAKE THE DIVIDERS, I'LL OPEN THEM UP A LITTLE BIT.
THERE, ALL RIGHT, AND RUN THAT AROUND, SO I'LL KNOW HOW DEEP TO CUT, 'CAUSE THAT'S HOW WE'RE GOING TO DO IT, WE'RE GOING TO RIP CUT THIS DOWEL DOWN VERTICALLY FIRST, AND THEN CUT UP TO IT, 'CAUSE THEN WE'RE CUTTING ON LINES WE CAN SEE.
SO, HERE WE ARE, FIRST CUT... DOWN THE GRAIN, AND STOP AT THE SHOULDER.
SECOND CUT, DOWN THE GRAIN, AND SO FORTH.
SO, WE'LL JUST KIND OF AVERAGE IN ON THIS WITH A BUNCH OF CUTS, SO I'M GOING TO MAKE A TOTAL OF 8 CUTS, AND GO FROM THIS SHAPE, THIS KIND OF CRUDE OCTAGON, DOWN TO ANOTHER OCTAGON WITHIN THAT PREVIOUS SHAPE.
THERE WE ARE.
ALL OF THE SAW CUTS, THOUGH, ENDING AT A CERTAIN POINT THERE.
SO, NOW WE HAVE ISOLATED THAT CENTRAL GRAIN, WE'LL SAW UP TO IT AND BREAK THOSE PIECES OFF AROUND IT.
SO, I'LL TAKE IT ON OVER HERE TO THE LITTLE BENCH, WORK IN A BENCH HOOK, SO I CAN SEE WHAT I'M DOING, AND VERY CAREFULLY START SAWING OFF THOSE SEGMENTS THAT COME UP.
NOW, OF COURSE, YOU GOT A LOT OF PIVOT ON THERE, SO YOU DON'T WANT TO SAW THROUGH, SO, KEEP TESTING WITH YOUR FINGER TO SEE IF YOU'RE THROUGH.
YEAH, ALMOST, ALMOST.
THERE WE GO.
ALL RIGHT, AND WE JUST KEEP ROCKING AROUND.
THERE WE GO, A LITTLE MORE, ALL RIGHT.
AND I'M JUST FEEDING THIS SAW BACK INTO THE PREVIOUS CUT AS I ROTATE IT, THERE WE GO, ALL RIGHT, AND SO FORTH.
SO, THERE'S OUR TENON, OUR ROUND PIVOT POINT, DONE.
WITHOUT THE LAY.
THERE WE GO.
AND THAT LAST LITTLE BIT, THERE WE GO, ALL RIGHT.
WHEW!
YOU MAKE ONE LITTLE CUT IN TOO MUCH, AND IT'LL FALL RIGHT OFF.
SO THEN, A LITTLE BIT OF RASP WORK.
[COUGHS] I'VE GOT A RASP IN MY VOICE.
HERE WE GO.
AND BRING IT ON DOWN THE REST OF THE WAY.
ALL RIGHT, SO, THAT'S OUR PIVOT THAT TURNS OUR CAM.
NOW, THERE'S ONE MORE COOL THING.
REMEMBER THAT BUSINESS WE HAD--LET ME SHOW YOU ON THE FINISHED ONE.
SO, THAT'S GOING TO GO BACK IN THERE, IN BETWEEN HOLES, BORED IN THE FRAME.
REMEMBER THE PLACE THAT WAS HOLLOWED OUT FOR THE SAW IN OUR SAW VICE?
LET'S JUST SEE THAT LITTLE HOLLOWED OUT SPOT ON THIS ONE.
THAT HOLLOWED OUT SPOT IS REALLY NICELY DONE, HOLLOWED IN THERE.
THE WAY I'M GOING TO DO THAT--NOW, I DON'T KNOW HOW THEY DID IT, YOU KNOW, AND I KEEP GOING ON ABOUT WHETHER THIS WAS MANUFACTURED OR MADE ONE OFF, JUST ONE OF THEM, BECAUSE IT'S DIFFERENT.
IF YOU DO A MANUFACTURED THING AND TRY AND REPLICATE IT BY HAND, IT ALWAYS LOOKS ODD.
SO, I'VE GOT SOMETHING, A SAMPLE OF THOSE CHOPS THERE, I'M GOING TO NEED TO GET UP PRETTY HIGH, AND I'LL BORE RIGHT DOWN ON IT.
THERE YOU GO.
AND SO, WE'LL MAKE THAT HOLLOW BY BORING WITH A VERY, VERY SHARP...
I MEAN, YOU HAVE TO BE SO SHARP ON YOUR BRACE AND BIT FOR THIS TO WORK.
ALL RIGHT.
[BLOWS] SO, ONCE THAT'S DONE, AH HA HA, YOU CAN THEN TRIM THIS UP ON THE SIDES WITH YOUR CHISEL, AND YOU'VE MADE THAT CLEAN LITTLE SOCKET FOR THE SAW HANDLE TO FIT INTO FOR YOUR SAW SHARPENING VICE.
SO, ANYWAY, JUST SOME INTERESTING LITTLE THINGS TO MAKE A WONDERFUL THING, A SAW SHARPENING VICE.
AND THE BEST THING IS, IT'S SOMETHING WITH A STORY AROUND IT.
THANKS SO MUCH FOR JOINING ME, IT'S ROY UNDERHILL, HERE IN "THE WOODRIGHT'S SHOP."
WE'LL SEE YOU NEXT TIME, SO LONG.
Announcer: LEARN MORE ABOUT "THE WOODRIGHT'S SHOP" AND TRADITIONAL WOODWORKING ON OUR WEBSITE.
YOU CAN FIND US ONLINE AT PBS.ORG.
MAJOR FUNDING FOR "THE WOODRIGHT'S SHOP" IS PROVIDED BY: [CAT YOWLS] [CAR ALARM] Announcer 2: WHEN THE UNEXPECTED HAPPENS, STATE FARM HAS THE TOOLS TO GET YOU TO A BETTER STATE.
PROUD SPONSOR OF "THE WOODRIGHT'S SHOP."
BE MORE, PBS.
Announcer: ROY UNDERHILL IS THE AUTHOR OF "THE WOODRIGHT'S GUIDE: WORKING WOOD WITH WEDGE AND EDGE," AS WELL AS OTHER BOOKS ON TRADITIONAL WOODWORKING, ALL PUBLISHED BY THE UNIVERSITY OF NORTH CAROLINA PRESS, AND AVAILABLE IN BOOKSTORES AND LIBRARIES.