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Post by hotrod on Jan 1, 2009 12:20:41 GMT -6
I have an OLD drill press a guy gave me and was wondering how to make sure drill was drilling square and true to the table top.
I have checked the chuck run-out with and without a piece of round steel stock. I'm ok with the run-out, but not so sure about the relationship between chuck and table.
Ed
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Post by Mr. Slick on Jan 1, 2009 12:51:20 GMT -6
I just use a 6 inch level on the table top that has a square end on it. I check both the side ti side alignment and the front to back alignment with a rod in the chuck. I put the square end up to the rod and see if there is any light showing at the top or bottom. If there is liht in the middle the rod is bent or one of the kids filed the end of the level!
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Post by 3cubdad on Jan 1, 2009 22:30:54 GMT -6
I do similar to Mr Slick, although I use a drafting triangle!
After I've done that, or as a quick check of both squareness and runout, take a fairly thick piece of dimensional wood. Minimum 2"x4", preferably a 4"x4" and drill into it about 1 - 1.5" with around a 1/8" bit. Then take the bit out of the chuck and put it into the hole. The fit should be snug or your runout is too large. With the bit sticking out of the you can check for square all the way around.
Steve 3CubDad
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Post by hotrod on Jan 2, 2009 13:13:48 GMT -6
Thanks guys. I'm sure I can find a 2x6 around the shop to put a hole or two in. Ed
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Post by ProQuest on Jan 2, 2009 15:26:40 GMT -6
With the bit sticking out of the you can check for square all the way around. Steve 3CubDad "With the bit sticking out of the [?] you can check for square all the way around." This is probably a dumb question, but to check for square is the bit sticking out of the chuck or the wood piece? If you meant the wood piece, I don't get how you would check for square that way. Sorry for being dense. Thanks. Steve H.
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Post by Mr. Slick on Jan 2, 2009 19:09:48 GMT -6
All checking for square with the drill bit in the wood would show is that the top surface of the wood is possibly square to the drill bit.
There may be some relation to the desired result but probably not the same as the bit that is chucked being checked to be square with the table of the drill press.. . .
What you may really be searching for is the drill bit to be parallel to the BOTTOM of the car which is one of the vertical surfaces when drilling axle holes.
This means that there needs to be a fence type thingy that is verified with the drill bit alignment and this is then used to secure the block of wood. . . . think "The Block" type of holder
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Post by beakerboysracing on Jan 2, 2009 20:05:32 GMT -6
Here's what Santa brought me. I was a VERY GOOD BOY this year! The Germans really know how to build precision equipment. It is extremely square. If you don't have one, I highly recommend getting one! Makes drilling axle holes a cinch! ;D Especially needles! ;D Now all I need is the X Y Table and the 1/4 chuck attachment. Scott Beakerboys
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Post by ProQuest on Jan 2, 2009 20:46:26 GMT -6
Here's what Santa brought me. I was a VERY GOOD BOY this year! The Germans really know how to build precision equipment. It is extremely square. If you don't have one, I highly recommend getting one! Makes drilling axle holes a cinch! ;D Especially needles! ;D Now all I need is the X Y Table and the 1/4 chuck attachment. Scott Beakerboys Beak, That's an awesome gift. I love mine. Got a great deal from Old Foundry Toy Works: www.oldfoundry.com/catalog/. Ask for Jason and tell him I sent you. You will get the best deal anywhere. If you happen to find one for less elsewhere, please tell me. Warren, thanks for clearing up my confusion about checking for square on the drill press. I get it now. Steve
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Post by Carolina Gravity Sports on Jan 2, 2009 22:18:52 GMT -6
Scott - you will love that drill press, I have the same set-up with the X-Y table. ;D It drills the most accurate holes I've ever been able to drill. The old drill press in the shop is probably as old as me but it did a fair job over the years. The Proxxon was a major step for me in achieving accurate axle holes.
CGS
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Post by Mr. Slick on Jan 3, 2009 12:40:39 GMT -6
Right, right, sure, sure, uh-uh. . . from what I remember from the last time I raced your cars, I need to learn which end of the drill bit is supposed to be put in the chuck and which direction to spin the bit. ;D ;D ;D I have a bunch of knowledge just very little time to put things together! I will try to drill some holes in 2009. Warren.
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Post by F.A.S.T Racing on Jan 3, 2009 18:26:25 GMT -6
I just use a 6 inch level on the table top that has a square end on it. I check both the side ti side alignment and the front to back alignment with a rod in the chuck. I put the square end up to the rod and see if there is any light showing at the top or bottom. If there is liht in the middle the rod is bent or one of the kids filed the end of the level! Here's how I set-up my old bench top drill press :
Left to Right= Machinist protractor, 12 inch & 6 inch Combination square, wheel mandrels, bright flashlight, wrench for table adjusting bolt.
Chuck up the wheel mandrel,adjust height of table then place the combination square close to the mandrel till it almost touches.
You can also use just the head of the Combination square. Once you have found how much (or little) your table is out of square, use the wrench to just loosen the bolt. Gently tap down on the high side of the table. Tighten the bolt and recheck. Use the flashlight from behind to check for an even width of light showing through.
Repeat until you have the table square. Fully tighten the adjusting bolt. Recheck one last time.
Now you are all set to drill perpendicular holes !!
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Post by hotrod on Jan 3, 2009 23:04:38 GMT -6
Thanks again guys for the comments ....especially thanks for the pics FAST. I need a pic or two sometimes to help get it in my head. Right now, I'm going to use the old mule I have... maybe one day I can get an update. After all, maybe I will get a tax refund in a few months. Scott, congrats on being a good boy!! Looks like a great gift. Let us know how you like it. It might be just the ticket to catch ProQuest. ;D I had planned to get in the shop this weekend to check drill press, but I have a bad sinus infection with bronchitis. Maybe I will feel better in a few days.
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Post by F.A.S.T Racing on Jan 4, 2009 6:14:50 GMT -6
...Right now, I'm going to use the old mule I have... maybe one day I can get an update... Glad I could help ;D
Sometimes old tools are the best tools. I've got a table saw built in 1970 that is more accurate & has less vibration than my neighbors new one. [/size]
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