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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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How do you drill long holes?
I am messing with some projects where I want to use some natural wood
pieces, sometimes up to three inches in diameter in some iron/wood gates. The wood would be natural, except for polished or sanded or sandblasted and varnished. In some cases, I want to put a hole through the length of the piece, sometimes up to three feet long. Can I use the long bits I see in the electrical section of the Borg that are for (I assume) drilling through beams, a series of studs, etc.? Any tips to keep the drift under control? Put a stabilizing holder where the bit enters the wood, and maybe a few others along the length of the rod to keep flex down? I have also thought of only going say six inches in from the end, and using a pin, but for a couple of applications, a hole completely through it would be the best. How do they drill antlers through the length of the whole thing for wiring for chandeliers? How do they get the drill bit to curve? Should I stick to the Forstner type bits on the ends of the long rods, or weld stubby drill bits on the ends of rods where I can doctor them up with my Drill Doctor as they dull? Help and ideas appreciated. Steve |
#2
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How do you drill long holes?
Steve B wrote:
I am messing with some projects where I want to use some natural wood pieces, sometimes up to three inches in diameter in some iron/wood gates. The wood would be natural, except for polished or sanded or sandblasted and varnished. In some cases, I want to put a hole through the length of the piece, sometimes up to three feet long. Can I use the long bits I see in the electrical section of the Borg that are for (I assume) drilling through beams, a series of studs, etc.? Any tips to keep the drift under control? Put a stabilizing holder where the bit enters the wood, and maybe a few others along the length of the rod to keep flex down? I have also thought of only going say six inches in from the end, and using a pin, but for a couple of applications, a hole completely through it would be the best. How do they drill antlers through the length of the whole thing for wiring for chandeliers? How do they get the drill bit to curve? Should I stick to the Forstner type bits on the ends of the long rods, or weld stubby drill bits on the ends of rods where I can doctor them up with my Drill Doctor as they dull? One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. GWE |
#3
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How do you drill long holes?
....
One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. I've got absolutely NO experience here, so take it for what its worth... Keep that D bit drilling right on center for a three foot length has to be neigh on near impossible. Bet it takes a real craftsman to prove me wrong. Karl |
#4
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How do you drill long holes?
Karl Townsend wrote: ... One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. I've got absolutely NO experience here, so take it for what its worth... Keep that D bit drilling right on center for a three foot length has to be neigh on near impossible. Bet it takes a real craftsman to prove me wrong. Karl The rest of the trick is that after you have the hole, you turn the wood to be concentric with the hole. 8-) Dan |
#5
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How do you drill long holes?
Karl Townsend wrote:
... One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. I've got absolutely NO experience here, so take it for what its worth... Keep that D bit drilling right on center for a three foot length has to be neigh on near impossible. Bet it takes a real craftsman to prove me wrong. Well, a D bit is like a gun drill in that it will accurately follow a hole and not wander, that's the idea. Other concept is drill halfway, turn the piece around and drill the other end halfway. Regarding the holes through antlers, aren't some kinds of antlers hollow? GWE |
#6
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How do you drill long holes?
"Steve B" wrote:
I am messing with some projects where I want to use some natural wood pieces, sometimes up to three inches in diameter in some iron/wood gates. The wood would be natural, except for polished or sanded or sandblasted and varnished. In some cases, I want to put a hole through the length of the piece, sometimes up to three feet long. Can I use the long bits I see in the electrical section of the Borg that are for (I assume) drilling through beams, a series of studs, etc.? Yesterday, my uncle drilled a ram rod hole in the stock for the rifle he is building for me. He had me take a 3/8" dia piece of crs and mill a quadrant out of one end for about 2 inches. I then cut a bit more at tip for a piece of tool steel that he was going to solder in for the cutting edge. Then he ground it to be a single edge drill. Next, he took a couple of pieces of hardwood and routed a vee in middle of the long axis in both. You then put your drill in the vees and screw the two pieces of wood together. Imagine a hot dog in a bun. Using clamps, tablesaw, and fence for guides and support, he lined up drill sandwitch and stock and started drilling.. I made the inlet for the tool steel insert on wrong side so he had use drill motor in reverse. HTH, Wes S |
#7
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How do you drill long holes?
Okay, I get to use my one dumb question coupon ..........
What is a D bit? I googled, but got nine million other things. Steve |
#8
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How do you drill long holes?
This method works pretty well. I drilled a 0.375" (near .38 caliber) gun
barrel 14 inches deep via this method with very frequent chip removal. The hole only drifted about 0.010". Bore centering was reestablished by turning down the outside. I don't recommend this method. If I were to do it again, it would be with a D-bit, either solid or silver-soldered to a long shank. Formal "gun drills" are somewhat similar to D-bits with oil flowing through the hollow bit to wash out the chips. AFAIK, chip clearance is the main reason gun drills stay straight in the bore. Bob Swinney .. Zimmerman" wrote in message news:ffXdg.195100$7a.104145@pd7tw1no... I have made long bits using drill rod which is of course nice and straight. I tailstock drill a small hole in the end of the rod about a quarter to half inch deep. I then machine the soft shank of a standard twist drill so that I have a fit into the drill rod. To maintain alignment I silver solder the joint. I figure welding would create it own problems with bending and hard spots that could cause a fracture. Randy "Steve B" wrote in message news:UUQdg.89094$iU2.63343@fed1read01... In some cases, I want to put a hole through the length of the piece, sometimes up to three feet long. Can I use the long bits I see in the electrical section of the Borg that are for (I assume) drilling through beams, a series of studs, etc.? snip Help and ideas appreciated. Steve |
#9
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How do you drill long holes?
if possible start with two pieces of wood and saw a slot down the middle of
both pieces. then just glue the slotted sides together "Steve B" wrote in message news:UUQdg.89094$iU2.63343@fed1read01... I am messing with some projects where I want to use some natural wood pieces, sometimes up to three inches in diameter in some iron/wood gates. The wood would be natural, except for polished or sanded or sandblasted and varnished. In some cases, I want to put a hole through the length of the piece, sometimes up to three feet long. Can I use the long bits I see in the electrical section of the Borg that are for (I assume) drilling through beams, a series of studs, etc.? Any tips to keep the drift under control? Put a stabilizing holder where the bit enters the wood, and maybe a few others along the length of the rod to keep flex down? I have also thought of only going say six inches in from the end, and using a pin, but for a couple of applications, a hole completely through it would be the best. How do they drill antlers through the length of the whole thing for wiring for chandeliers? How do they get the drill bit to curve? Should I stick to the Forstner type bits on the ends of the long rods, or weld stubby drill bits on the ends of rods where I can doctor them up with my Drill Doctor as they dull? Help and ideas appreciated. Steve |
#10
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How do you drill long holes?
jay s wrote:
if possible start with two pieces of wood and saw a slot down the middle of both pieces. then just glue the slotted sides together This method is used to install truss rods in banjos and steel-stringed guitars, the difference being that, in the case of a musical instrument, the slot is routed down the neck only, rather than down both sides. I mentioned banjos first, because banjos had truss rods before guitars did. With pencils, I assume that the routing would be done down both sides. |
#11
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How do you drill long holes?
Nah, the auger bits in the borg will follow the grain a bit, what you
want is called a "Ship Auger" |
#12
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How do you drill long holes?
Steve B wrote:
Okay, I get to use my one dumb question coupon .......... What is a D bit? http://www.metalwebnews.com/howto/d-bit.html |
#13
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How do you drill long holes?
Yes. Those should do nicely if you want a hole about 3/4" or larger. I
have several ship augers about 4' long that we used for drilling timbers for the mine. They are probably at least 80 years old and still work great for drilling that strange hole in a post or stump. I have several that had the crank cut off so they could be used in an electric drill. It takes a heavy fellow to keep from spinning with it once it gets in a couple of feet But they do make remarkably straight holes. Glenn wrote in message oups.com... Nah, the auger bits in the borg will follow the grain a bit, what you want is called a "Ship Auger" |
#14
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How do you drill long holes?
On Sat, 27 May 2006 09:02:40 -0700, "Steve B"
wrote: Okay, I get to use my one dumb question coupon .......... What is a D bit? Description and Photos he http://www.bagpipeworld.co.uk/MakingBagpipes/Drill.htm |
#15
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How do you drill long holes?
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#16
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How do you drill long holes?
Grant Erwin wrote:
Karl Townsend wrote: Regarding the holes through antlers, aren't some kinds of antlers hollow? GWE NO. Antlers are bone. Only horns are hollow they are (senior moment) smae stuff as hoofs and finger nails. :-) ...lew... |
#17
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How do you drill long holes?
On Sat, 27 May 2006 11:15:45 -0700, "Glenn"
wrote: Yes. Those should do nicely if you want a hole about 3/4" or larger. I have several ship augers about 4' long that we used for drilling timbers for the mine. They are probably at least 80 years old and still work great for drilling that strange hole in a post or stump. I have several that had the crank cut off so they could be used in an electric drill. It takes a heavy fellow to keep from spinning with it once it gets in a couple of feet But they do make remarkably straight holes. Glenn wrote in message roups.com... Nah, the auger bits in the borg will follow the grain a bit, what you want is called a "Ship Auger" what does a ship auger look like? |
#18
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How do you drill long holes?
On Sat, 27 May 2006 06:18:04 -0500, "Karl Townsend"
remove .NOT wrote: I think Grant wrote: ... One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. Is he a big guy, lives in south Seattle and also has a Harley? I've got absolutely NO experience here, so take it for what its worth... Keep that D bit drilling right on center for a three foot length has to be neigh on near impossible. Bet it takes a real craftsman to prove me wrong. If it's th' guy I'm thinking it is, he'd be happy to prove you wrong. Building a set of those pipes ain't for sissies g. And he plays them as well as competes in other various Highlander games. I don't know squat about bagpipes, but I can appreciate th' work that went into making them. Snarl |
#19
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How do you drill long holes?
It looks like a screw point auger bit as used in the old brace and bit
drills. It is much longer and has a crank built into the shaft sort of a one piece brace and bit. Glenn "Stealth Pilot" wrote in message ... On Sat, 27 May 2006 11:15:45 -0700, "Glenn" wrote: Yes. Those should do nicely if you want a hole about 3/4" or larger. I have several ship augers about 4' long that we used for drilling timbers for the mine. They are probably at least 80 years old and still work great for drilling that strange hole in a post or stump. I have several that had the crank cut off so they could be used in an electric drill. It takes a heavy fellow to keep from spinning with it once it gets in a couple of feet But they do make remarkably straight holes. Glenn wrote in message groups.com... Nah, the auger bits in the borg will follow the grain a bit, what you want is called a "Ship Auger" what does a ship auger look like? |
#21
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How do you drill long holes?
On Sun, 28 May 2006 11:06:24 -0700, Grant Erwin
wrote: wrote: On Sat, 27 May 2006 06:18:04 -0500, "Karl Townsend" remove .NOT wrote: I think Grant wrote: ... One of the guys in our group makes bagpipe pipes from wood on a metal lathe. He drills them lengthwise using a D-bit he made himself. He also uses a big steady rest with roller skate wheels which bear on the wood. Drill the end about 1/4" deep with a bit the size you want, then feed in the D-bit by hand, holding it with vise grips. The existing hole keeps the bit centered and aligned. Gotta keep backing out to clear chips. Is he a big guy, lives in south Seattle and also has a Harley? Nope, he's a tall lean guy, lives in Wallingford and isn't a biker :-) Well I was close, heh, heh. Chances are your guy knows mine, John Brock. If not, they should be introduced : ) Snarl |
#22
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How do you drill long holes?
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#23
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How do you drill long holes?
In article , says...
It looks like a screw point auger bit as used in the old brace and bit drills. It is much longer and has a crank built into the shaft sort of a one piece brace and bit. But I don't think the crank handle is what distinguishes a ship auger from a regular Jenning's-type carpenter's auger bit, at least not here in New England. This is a ship auger... http://www.toolbarn.com/images/irwin/47406.jpg This is not... http://www.antique-used-tools.com/St...00Bit_1516.jpg The ship auger is made from a bar wound into a helix, has a single cutting edge at the tip, and often does not have a spur or feed screw at the tip, in which case it's a barefoot auger. A Jenning's auger is made from a twisted strip of steel, and has two cutting edges with a spur on each. Ned Simmons |
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