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Make Your Own Mitre Jack (for both hand-tool and power-tool woodworkers)

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Project by ChuckM posted 09-02-2015 03:31 PM 3563 views 17 times favorited 12 comments Add to Favorites Watch

A mitre jack is a precision tool that has many uses: http://www.leevalley.com/us/newsletters/Woodworking/5/5/collection.htm It gives the kind of precision that power tools are hard to match. Build it and you can finetune your mitres, squares and angled pieces with (almost) perfection.

I made one out of scrap woods (cherry & maple) and a press screw: http://www.leevalley.com/en/wood/page.aspx?p=31138&cat=1,43838,43845,31138

In place of the mortise and tenon joint commonly used for this type of build, I used the Dominos for the slider. And for the tight room, I reached for this screwdriver set: http://www.leevalley.com/en/wood/page.aspx?p=32210&cat=1,43411,43417

Thanks for dropping by.

-- The time I enjoy wasting is not time wasted





12 comments so far

View ChuckM's profile

ChuckM

577 posts in 3133 days


#1 posted 09-02-2015 04:00 PM

One more shop photo – dry fitting.

-- The time I enjoy wasting is not time wasted

View Sawdustonmyshoulder's profile

Sawdustonmyshoulder

413 posts in 3095 days


#2 posted 09-02-2015 04:08 PM

Well, dang it!!! I got to make one of these. Thanks!!!!

-- Makin' Sawdust!!!

View David Taylor's profile

David Taylor

326 posts in 554 days


#3 posted 09-03-2015 01:24 AM

That’s very cool. Have you seen Jameel Abraham’s? He sells the metal bits to reproduce one from La Forge Royale.

http://benchcrafted.blogspot.com/search/label/La%20Forge%20Royale%20Miter%20Jack

-- Learn Relentlessly

View shipwright's profile

shipwright

7175 posts in 2265 days


#4 posted 09-03-2015 04:45 AM

The Mitre Jack is one of those tools that has you wondering what you would use it for ….. until you have one.
When you do you find so many uses you wonder how you ever did without one.
I love mine.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees. http://thecanadianschooloffrenchmarquetry.com/

View ChuckM's profile

ChuckM

577 posts in 3133 days


#5 posted 09-03-2015 06:32 AM

Dffhid- Tks for sharing that info. Kit looks good.

Shipwright- Yours looks well built and the example of use you put in your gallery is great.

-- The time I enjoy wasting is not time wasted

View Underdog's profile

Underdog

907 posts in 1502 days


#6 posted 09-03-2015 11:46 AM

Here’s something I’ve been wondering…
If you use one of these with a plane, how do you prevent paring down your support pieces at the same time you’re planing your stock?

-- "woodworker with an asterisk"

View ChuckM's profile

ChuckM

577 posts in 3133 days


#7 posted 09-03-2015 01:15 PM

Underdog – Good question.

Two ways to deal with that:

- Glue a paper on the jaw faces and replace it when worn
- Glide your plane as you make the cut and exit, like an airplane taking off.

If jaws àre shaved a bit, simply use a block plane to tune it back.

Chuck
PS Keep the blade sharp and set plane for light cuts.

-- The time I enjoy wasting is not time wasted

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1177 posts in 1180 days


#8 posted 09-03-2015 02:13 PM

Looks great. Clewer to use the dominos as guides.
Would love to see a picture of it in use!

-- "Do or Do not. There is no try." - Yoda

View ChuckM's profile

ChuckM

577 posts in 3133 days


#9 posted 09-03-2015 03:36 PM

In the lead photo, I was shaving the mitred walnut moulding—in a skewed, gliding manner.

Chuck

-- The time I enjoy wasting is not time wasted

View bhacksaw's profile

bhacksaw

161 posts in 1291 days


#10 posted 09-03-2015 06:09 PM

I’ve never heard of one and can’t find any videos. What is its purpose?

View ChuckM's profile

ChuckM

577 posts in 3133 days


#11 posted 09-03-2015 06:42 PM

bhacksaw – check out the LV newsletter link above. It describes its uses.

-- The time I enjoy wasting is not time wasted

View ChuckM's profile

ChuckM

577 posts in 3133 days


#12 posted 09-04-2015 07:49 PM

bhacksaw – Just came across this vid: https://www.youtube.com/watch?v=VW_28VR5y0I

-- The time I enjoy wasting is not time wasted

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