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Larry Miller 
Orange Level
Joined: 21 Nov 2009
Location: NWIL
Points: 909
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 Topic: How do you move a hole ?
Posted: 13 Jun 2011 at 7:17pm |
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I have had several situations where two bolt holes don't quite line up and one or both need to move less than half the hole size. Tried several things - all frustrating. How do you deal with that ?? Thanks, Larry Miller
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I used to be young and stupid, now I am not young anymore.
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E7018
Bronze Level
Joined: 07 Dec 2009
Points: 167
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Posted: 13 Jun 2011 at 7:41pm |
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A tapered reamer fits some situations. Truck frames is one spot that I like one.
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Gerald J.
Orange Level
Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636
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Posted: 13 Jun 2011 at 9:02pm |
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Round file. Milling machine and an endmill or slot cutter. Ordinary drill bit cocked in the hole back and forth to make the hole oblong. It widens both sides though. Or just a bigger drilled hole. Electronic industry used to plan for 1/32" oversize just to account for alignment.
Gerald J.
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TedBuiskerN.IL.
Orange Level
Joined: 11 Sep 2009
Location: Davis, IL.
Points: 1959
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Posted: 13 Jun 2011 at 9:09pm |
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Tap the hole to the nearest size, and locktite a bolt in the hole. cut the bolt off, grind it smooth, and relocate your hole.
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Most problems can be solved with the proper application of high explosives.
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CTuckerNWIL
Orange Level
Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 13 Jun 2011 at 9:13pm |
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Bridgeport mill, Larry. You have room to expand your workshop and I'll come over and show you some things you can do with it.
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Larry Miller
Orange Level
Joined: 21 Nov 2009
Location: NWIL
Points: 909
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Posted: 13 Jun 2011 at 9:59pm |
I envy you guys with mills and skill to use them. When I get to live my life over - that is a skill I will put on the redo list. Ted - that is one I have not tried. I will put it on the should do list. Charlie - if you bring one over - I will make the room. Or, I can bring you a bag of holes and you can help me put them where they are supposed to be.
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I used to be young and stupid, now I am not young anymore.
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DaveKamp
Orange Level Access
Joined: 12 Apr 2010
Location: LeClaire, Ia
Points: 6103
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Posted: 13 Jun 2011 at 9:59pm |
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If it's mild steel, I weld the hole shut, grind smooth, then locate, punch, and drill new hole.
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Jeff Z. NY
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Joined: 11 Sep 2009
Points: 7326
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Posted: 13 Jun 2011 at 10:04pm |
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Johnny Cash had the problem once.
He went to put in the bolts and all the holes were gone.
I hate it when that happens.
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 13 Jun 2011 at 11:30pm |
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Larry, Have you got a die grinder? Harbor Freight and the big box stores have some cheap ones that work OK but use more air than a good one. A carbide burr in a die grinder will fix you up in a very short time.
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 13 Jun 2011 at 11:57pm |
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I wanna see the bag of holes Larry. I almost bid on a bunch of used post holes at an auction cause nobody else would give a dollar for em. Then I got to thinking if they were used post holes, they would be filled up with old wood and some dirt around the outside so I didn't bid. I guess the farmer kept em.
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john(MI)
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Joined: 12 Sep 2009
Location: SE MI
Points: 9262
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Posted: 14 Jun 2011 at 7:07am |
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I would suggest a shovel! As you dig the new hole throw the dirt into the old hole. They used to do that all the time when everyone had outhouses!!!
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D14, D17, 5020, 612H, CASE 446
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nsula_country
Orange Level
Joined: 10 Mar 2011
Location: NW Louisiana
Points: 218
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Posted: 14 Jun 2011 at 8:09am |
I like the tap, bolt, loctite method. I have done this before. Sometimes welding a hole can create more problems.
CT
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Dick L
Orange Level
Joined: 12 Sep 2009
Location: Edon Ohio
Points: 5093
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Posted: 14 Jun 2011 at 8:13am |
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Actually I just did that last week. I tapped out the hole to next size as stated before. I then took a grade 2 bolt and tightened the bolt into the last thread on the bolt as tight as I could get it without stripping the threads. I cut the bolt off on both sides of the 3/16 thick piece leaving the bolt about 1/16 high on both sides. I then placed the part on solid steel and pounded both sides down like a rivit with a ball peen hammer. (I peened both sides) This expands the bolt tight into the old hole. I then ground both sides smooth, center punched where the bolt needed to be and drilled a small pilot hole and then drilled it to size.
Edited by Dick L - 14 Jun 2011 at 8:18am
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Brian G. NY
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Joined: 12 Sep 2009
Location: 12194
Points: 2270
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Posted: 14 Jun 2011 at 2:28pm |
I have welded holes shut and big ones I have welded bolts in as fillers and then cut them off and ground them flat..
I'm gonna try Dick's method the next time the ocassion arises!
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