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Lose Box Joint

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Forum topic by AlaskaGuy posted 05-23-2020 05:07 PM 412 views 0 times favorited 19 replies Add to Favorites Watch
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AlaskaGuy

5724 posts in 3040 days


05-23-2020 05:07 PM

I’m making a small jewelry box size drawer 7×13 inches. Making the box joints on my Leigh jig. When I do this I have to keep the router in the same orientation due to the bit not being perfectly centered. Evidently I let get out of orientation and I have one of the four corners is too lose. Normally I’d just make a new drawer. If I make a new drawer I have to wait until Monday and make a 40 mile round trip to get some more maple.

Wanting your tips and tricks to tighten up the effected joint.

-- Alaskan's for Global warming!


19 replies so far

View Foghorn's profile

Foghorn

448 posts in 117 days


#1 posted 05-23-2020 07:32 PM

I’d use a shaving of the same wood to fill the gap. A little sawdust of the same wood rubbed in just after glue up and after sanding, you’ll never see it.

-- Darrel

View Redoak49's profile

Redoak49

4635 posts in 2719 days


#2 posted 05-23-2020 09:08 PM

Using a shaving sounds like a great idea to make the joint better.

Whenever I use my Leigh jig, I center the bushing and router bits first. I use one of those bits that kind of look like a funnel. When I do this, I do not have problems. I just finished making several boxes with finger joint template and also made wood hinges.

View LeeRoyMan's profile

LeeRoyMan

1053 posts in 458 days


#3 posted 05-23-2020 09:27 PM

Get you an 8×10 x 20 of the same material. Joint and plane it until it’s square on all sides.
Use the bandsaw and cut off a 3 deg angled piece about 3” long.
Then rip that piece to the desired thickness.
Glue and pound into the space. Like it never happened.

Here is a visual for you.

Glad I could help :)

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

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LeeRoyMan

1053 posts in 458 days


#4 posted 05-24-2020 12:44 AM

Killing more time here before dinner…....

Perfect, can’t even tell.

-- I only know what I know, nothing less, nothing more -- That doesn't count what I used to know..

View splintergroup's profile

splintergroup

3643 posts in 1953 days


#5 posted 05-24-2020 02:04 PM

Scraps of veneer make perfect shims to hide gaps. Benefit is they are already to go, no need to make your own 8^)

Perfect, can t even tell.

- LeeRoyMan

That is one damn fine repair, perfect!

View Madmark2's profile

Madmark2

1255 posts in 1319 days


#6 posted 05-24-2020 02:15 PM

Time for a better router guide.

-- The hump with the stump and the pump!

View AlaskaGuy's profile

AlaskaGuy

5724 posts in 3040 days


#7 posted 05-24-2020 03:10 PM


Time for a better router guide.

- Madmark2

Which one? I’m using a Leigh dovetail jig with their bits and bushing. Actually I know what the problem is and it not the “Router Guide”. It’s also a common problem. It more about routers not perfectly centering the bit in the guide bush. I though someone like you would know that.

Edit to add
There are methods to center the bit in the guide bush and devices to help do that (centering cones and the like) but all you really have to do is hold the router in the same orientation.

-- Alaskan's for Global warming!

View pintodeluxe's profile

pintodeluxe

6113 posts in 3544 days


#8 posted 05-24-2020 04:01 PM

For fixing the loose joints, just mix some sawdust with glue and use it as a filler. I was doing that yesterday on some dovetail joints. Just test it on a sample joint to make sure your finish will look okay. I was using shellac on my dovetailed drawers, so no concerns about stain.

Are you using the Leigh e bush? That thing is a joke in my opinion. There’s a way to avoid using it with most operations.

As far as centering the baseplate, I just swapped the flat machine screws for screws with a tapered / cone shaped head. Now the baseplate centers itself automatically.

Good luck!

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

View AlaskaGuy's profile

AlaskaGuy

5724 posts in 3040 days


#9 posted 05-24-2020 04:31 PM



For fixing the loose joints, just mix some sawdust with glue and use it as a filler. I was doing that yesterday on some dovetail joints. Just test it on a sample joint to make sure your finish will look okay. I was using shellac on my dovetailed drawers, so no concerns about stain.

Are you using the Leigh e bush? That thing is a joke in my opinion. There s a way to avoid using it with most operations.

As far as centering the baseplate, I just swapped the flat machine screws for screws with a tapered / cone shaped head. Now the baseplate centers itself automatically.

Good luck!

- pintodeluxe


I’m using the Leigh VGB system. I don’t even know what an e bush is. When it all done and said the problem is bit centering not a guide bush problem.

-- Alaskan's for Global warming!

View Foghorn's profile

Foghorn

448 posts in 117 days


#10 posted 05-24-2020 06:07 PM

I think the Leigh e bush works great and allows you to creep up on a perfect fit. I did add a wrap of teflon tape as I found it would turn slightly if one was bearing down too hard on the sides of the template.

-- Darrel

View waho6o9's profile

waho6o9

8879 posts in 3308 days


#11 posted 05-24-2020 06:14 PM



I d use a shaving of the same wood to fill the gap. A little sawdust of the same wood rubbed in just after glue up and after sanding, you ll never see it.

- Foghorn

Excellent idea

View pintodeluxe's profile

pintodeluxe

6113 posts in 3544 days


#12 posted 05-25-2020 05:17 AM


When it all done and said the problem is bit centering not a guide bush problem.

- AlaskaGuy

The e bush is oval, so if it loosens slightly and rotates within the baseplate it will foul the cut. Even if your baseplate is perfectly cententered, and you hold the router in exactly the same orientation, a loose e bush will drive you nuts.

If you’re not using the silver e bush (with numbers and two holes on the bottom) this might not apply to you.

Good luck with it.

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

View Foghorn's profile

Foghorn

448 posts in 117 days


#13 posted 05-25-2020 01:15 PM

When it all done and said the problem is bit centering not a guide bush problem.

- AlaskaGuy

The e bush is oval, so if it loosens slightly and rotates within the baseplate it will foul the cut. Even if your baseplate is perfectly cententered, and you hold the router in exactly the same orientation, a loose e bush will drive you nuts.

If you re not using the silver e bush (with numbers and two holes on the bottom) this might not apply to you.

Good luck with it.

- pintodeluxe


That’s why I use a wrap of teflon tape on the variable guide bushing. I’ll bet blue loctite would work as well. A light touch when running it against the sides of the template works as well.

-- Darrel

View Redoak49's profile

Redoak49

4635 posts in 2719 days


#14 posted 05-25-2020 01:42 PM

The Leigh Variable Guide Bushing is round and tapered slightly. You adjust it up or down to change the fit of the joint. I have that on my D4R and the F2 template.. It works extremely well.

View Foghorn's profile

Foghorn

448 posts in 117 days


#15 posted 05-25-2020 02:09 PM



The Leigh Variable Guide Bushing is round and tapered slightly. You adjust it up or down to change the fit of the joint. I have that on my D4R and the F2 template.. It works extremely well.

- Redoak49

I find that even with the little plastic inserts, it will still turn at times. That’s why I add a wrap of teflon tape. If I was a little less ham handed in how hard I press it to the template while moving the router, I likely wouldn’t have an issue.

-- Darrel

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