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Forum topic by Chris Radvansky posted 11-05-2015 04:14 AM 708 views 0 times favorited 13 replies Add to Favorites Watch
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Chris Radvansky

15 posts in 436 days


11-05-2015 04:14 AM

so I was building this badass ROUTER TABLE!!! and to have the fence pieces slide a bit across the bit, the plans called for a threaded 5/16” insert. The plans said to fit said insert, I should use a 9/16” forstner bit. When I drilled the cylindrical hole, I found that the hole was too big for the insert. Any tips you have when the hole is too big for the insert other than to start from scratch with a new piece of wood? Thanks everyone.

Chris

-- Chris


13 replies so far

View ForestGrl's profile

ForestGrl

445 posts in 554 days


#1 posted 11-05-2015 04:21 AM


so I was building this badass ROUTER TABLE!!! and to have the fence pieces slide a bit across the bit, the plans called for a threaded 5/16” insert. The plans said to fit said insert, I should use a 9/16” forstner bit. When I drilled the cylindrical hole, I found that the hole was too big for the insert. Any tips you have when the hole is too big for the insert other than to start from scratch with a new piece of wood? Thanks everyone.

Chris

- Chris Radvansky

Depending on how picky you are about appearances…...you can take a hardwood face-grain dowel and insert it in the over-sized hole (may have to drill the hole out a little if you can’t find the exact fit), glue that in, let it dry overnight, then redrill the right sized hole. Moral of the story: Always do a test drill on scrap when doing something new [I’m sure you can figure out how I know this story and its moral. ;-) and how to fix it ]

PS: I’m not sure why you would need to use a Forstner. The few threaded inserts I’ve done, I’ve used a brad-point bit.

-- My mother said that anyone learning to cook needed a large dog to eat the mistakes. As a sculptor of wood I have always tried to keep a fireplace. (Norman Ridenour)

View jerryminer's profile

jerryminer

528 posts in 909 days


#2 posted 11-05-2015 05:20 AM

Epoxy

View HokieKen's profile

HokieKen

1812 posts in 606 days


#3 posted 11-05-2015 07:59 PM

I’m not picturing exactly what you’ve got but, if there’s room, you could just drill a hole, the correct size below the 9/16 hole and put the insert in there and use a longer bolt/screw.

If that’s not a possibility, I’m with ForestGrl, drill the hole out and epoxy in a 5/8 HW dowel. Then just drill the dowel out to the correct size.

-- Kenny, SW VA, Go Hokies!!!

View b2rtch's profile

b2rtch

4823 posts in 2516 days


#4 posted 11-05-2015 08:28 PM

Dowell and drill again

-- Bert

View ChefHDAN's profile

ChefHDAN

809 posts in 2317 days


#5 posted 11-05-2015 08:37 PM

FWIW

9>5 therefore 9/16” >5/16” and a 5/16” item will fit through a 9/16” opening but not be retained by it, this is commonly known as the DOH! rule and sometimes the WTF rule

Welcome to the wonderful world of woodworking where screwing up is always educational and mostly funny so long as you keep all your appendages attached.

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View Kazooman's profile

Kazooman

628 posts in 1420 days


#6 posted 11-05-2015 08:52 PM



FWIW

9>5 therefore 9/16” >5/16” and a 5/16” item will fit through a 9/16” opening but not be retained by it, this is commonly known as the DOH! rule and sometimes the WTF rule

Welcome to the wonderful world of woodworking where screwing up is always educational and mostly funny so long as you keep all your appendages attached.

- ChefHDAN

FWIW – 2

5/16 is the size of the bolt that threads into the insert. The external size of said insert will be much larger. The 5/16 brass insert McFeeley’s sells call for a 1/2” hole. The 9/16 that the OP mentioned would be very reasonable for another brand.

You are correct about one thing. Screwing up IS always educational.

View nkawtg's profile

nkawtg

204 posts in 719 days


#7 posted 11-05-2015 09:04 PM

Yup, something like a Dutchman / oversize dowel will do nicely, then re-drill.

View pintodeluxe's profile

pintodeluxe

4859 posts in 2281 days


#8 posted 11-05-2015 09:09 PM

Use a threaded insert that fits a 9/16” hole.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View rwe2156's profile

rwe2156

2200 posts in 949 days


#9 posted 11-05-2015 09:31 PM

1. Epoxy
2. Dowel and redrill
3. Get diff inserts.

In order of preference.

-- Everything is a prototype thats why its one of a kind!!

View SirIrb's profile

SirIrb

1239 posts in 698 days


#10 posted 11-05-2015 10:10 PM

I think there was a type-o and toy were supposed to use a 5/8 insert. Would make more sense.

Dowel. And always reply to people when they question it with “you don’t preDowel your inserts? If you calculate the elasticity of the wood to the holding power of the glue, the vector and feed rate of the work piece and divide that by the routers rpms, you would get it.” Act insulted till they beg forgiveness and recognize (imagine) your genius.

-- Don't blame me, I voted for no one.

View ForestGrl's profile

ForestGrl

445 posts in 554 days


#11 posted 11-06-2015 05:35 AM

Welcome to the wonderful world of woodworking where screwing up is always educational and mostly funny so long as you keep all your appendages attached.

- ChefHDAN

My own personal fave: the first time I used my new Freud dado set (what, 10 years ago?), I was so obsessed with setting the blades perfectly, I had it in the saw backwards. Ahhh, the smell of burning plywood! ;-)

-- My mother said that anyone learning to cook needed a large dog to eat the mistakes. As a sculptor of wood I have always tried to keep a fireplace. (Norman Ridenour)

View Redoak49's profile

Redoak49

1965 posts in 1456 days


#12 posted 11-06-2015 12:37 PM

There is so much difference in brands of threaded inserts. I always do a trial hole just to make certain.

I make lots of mistakes but try not to make the same one more than a couple of times.

View Bluepine38's profile

Bluepine38

3341 posts in 2553 days


#13 posted 11-06-2015 08:17 PM

Redoak49, I was told the first time it was a mistake, the second time it was a choice. Do not ask why I
was told this.

-- As ever, Gus-the 77 yr young apprentice carpenter

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