Miter key jig (Black MDF)

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Project by mafe posted 1453 days ago 4184 views 5 times favorited 17 comments Add to Favorites Watch

Here are my attemt on the miter key jig.
It runs extremely smooth on my Festool sled, just attaced to the fence with two clamps, and off we go.
The black MDF are just because it was some I had left, and even it might color a little, it was free, so…
I made also a movable fence or clamp on holder to make fixed sizes (the one with hole in).
So now I made my first box with miter joints – fantastic!
The other end of the jig, I left unused, so it’s ready for another jig…

Have forgotten for a long time to post this picture of the other end beeing used as a sled with fence.

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

17 comments so far

View Greg The Cajun Box Sculptor's profile

Greg The Cajun Box Sculptor

4735 posts in 1808 days

#1 posted 1453 days ago

that is a well designed jig Mafe. I like the adjustability and it looks to be very stable.

-- Every step of each project is considered my masterpiece because I want the finished product to reflect the quality of my work.

View Jim Jakosh's profile

Jim Jakosh

10226 posts in 1605 days

#2 posted 1453 days ago

Hey Mafe, that is a cool sled. With ways like that I must be hold the dimension pretty good,too.
Does that sled also slide in a groove on the right side of the table saw?

I have a sliding table on my Ryobi but I don’t have and grooves in the top for a standard sled. Without a guide on the right side, I don’t think I could control a sled such as yours with my little sliding table. Yours is really nice!
Good job on those miters. Thanks for sharing.

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!!

View Chris 's profile


1865 posts in 2490 days

#3 posted 1453 days ago

Very interesting design; I like it a lot. It gives me ideas for an addition to my own cross cut sled.

-- "Everything that is great and inspiring is created by the individual who labors in freedom" -- Albert Einstein

View bigike's profile


4028 posts in 1788 days

#4 posted 1453 days ago

very nice work!

-- Ike, Big Daddies Woodshop,

View patron's profile (online now)


12842 posts in 1840 days

#5 posted 1453 days ago

at first glance ,
i thought it was a store bought tool review .

very nice !

should go well with the wife’s black dress and heels (LOL) !

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View Dusty56's profile


11605 posts in 2187 days

#6 posted 1453 days ago

Black is Beautiful ! Great jig : )

-- When you arrive at my front door, please knock softly but firmly. I like soft , firm, knockers : )

View Gar's profile


84 posts in 1833 days

#7 posted 1452 days ago

Handy little jig. Your going to wear that out.

-- GAR

View Splinterman's profile


23058 posts in 1861 days

#8 posted 1452 days ago

Hey Mafe,
Sweet job…well done.

View Maveric777's profile


2687 posts in 1576 days

#9 posted 1452 days ago

You did a great job on your jig. Very well done and professional looking.

-- Dan ~ Texarkana, Tx.

View mafe's profile


9231 posts in 1588 days

#10 posted 1452 days ago

Hi guys,
Thank you for the nice comments.
It’s ‘only’ attached to the sliding sled, it is so stabil, that it need no groove (I was a little impressed).
Yes, I might just wear it out one day, since I can see how it’s easy to work with once the jig is made.
The professional look has a little drawback, that the black MDF can give a little black dust, so I had to cut the first cut a little bigger than the blade, so now there are no ‘loose’ dust.
Best thoughts,

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View Houtje's profile


299 posts in 1471 days

#11 posted 1450 days ago

It Looks very nice. I have also a Festool tablesaw, but no sliding slede. But I will think about that.
Great jig!!!

View stefang's profile


11812 posts in 1833 days

#12 posted 1450 days ago

When you make something Mads you really do it well. It looks like a part of your Festool equipment. I’m glad you are with us to give new inspiration!

-- Mike, an American living in Norway.

View Woodfix's profile


322 posts in 1799 days

#13 posted 1449 days ago

Very well done. Makes my attempt look quite pathetic. Mind you that leaves me with a lot of room for improvement.

Hope you dont mind if I attempt a copy.


-- Living is a constant gamble, life is about working the odds in your favour

View mafe's profile


9231 posts in 1588 days

#14 posted 1449 days ago

Hi Lumbers,
Houtje,nice to get to know you, it will be interesting I’m sure!
Mike, you make me blush – thank you a lot – you are a big part of my selfconfidense here ;-) and if others read this, go and see his latest box with the inlays – wauuu.
Doug, I just took inspration from the others, did not invet nothing, so put your hands deep in the dove, we are all there.
See you arround all,

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View Julio Alonso Diaz's profile

Julio Alonso Diaz

173 posts in 1380 days

#15 posted 1272 days ago

this is just what I was looking for, great Mafe many thanks

-- El hombre que amo la madera.

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