Portable Slot Mortising Machine (Domino Style)

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Project by Machinist posted 10-07-2016 07:19 PM 5418 views 6 times favorited 10 comments Add to Favorites Watch

A portable slot mortising machine designed by Alex K.
I purchased his plans here;
Slides were made from teflon instead of using drawer slides.

I thought I would share it as Lumberjocks is where I found the inspiration. I still need to get a Bosch Colt to try it out.


10 comments so far

View Scott Oldre's profile

Scott Oldre

1102 posts in 3634 days

#1 posted 10-07-2016 11:58 PM

Looks very cool, nice to have a CNC to cut out the critical parts.

-- Scott, Irmo SC

View NormG's profile


6283 posts in 3206 days

#2 posted 10-08-2016 04:22 AM

Look way to cool, keep us advised on how it functions

-- Norman - I never never make a mistake, I just change the design.

View oldnovice's profile


7333 posts in 3570 days

#3 posted 10-08-2016 05:49 AM

That looks very beautiful, all out of aluminum and all your!
You make me jealous.

-- "I never met a board I didn't like!"

View Bluepine38's profile


3379 posts in 3288 days

#4 posted 10-08-2016 02:57 PM

When I saw your signin, I was not sure if this was made of steel or aluminum, and am still guessing.
Wonderful looking machine, and looking at it, the design could be modified to hold a larger router, not
because, as Tim Allen would say,it needs a bigger motor, but because the bigger routers show up at
garage sales and Craigslist fairly cheap more often than the small routers. This would be less expensive
than the Domino and if I used aluminum I could fabricate it using my woodworking tools. Thank you
for sharing. Does your wife know you borrowed her pattern cutting sheet, or like me did you find it on sale
and decided it would make a durable and inexpensive bench cover?

-- As ever, Gus-the 79 yr young apprentice carpenter

View Peter's profile


23 posts in 4315 days

#5 posted 10-08-2016 07:16 PM

I love the X-wing photo-bombing your last photograph! :-)

Looks great! I have a friend with a machine shop. May have to see if I can get one made…


-- ~Peter

View majuvla's profile


13376 posts in 3070 days

#6 posted 10-09-2016 04:20 AM

You are lucky to have possibility and maschines to make it.

-- Ivan, Croatia, Wooddicted

View Machinist's profile


2 posts in 800 days

#7 posted 10-09-2016 02:48 PM

Thanks all.

Yes it was mostly CNC machined from aluminum. Without the CNC it would have been mostly bandsaw and belt sanding.

I think I use my wife’s pattern cutting mat more than she does but we had the X-wing flying cover just in case.

That is a good point about a bigger router, The design was made around a Bosch Colt, but it wouldn’t take much to make a new motor mount and I have a couple old routers under the bench…

Have fun!

View mirock's profile


196 posts in 2834 days

#8 posted 10-24-2016 07:43 PM

VERY VERY cool. I know Alex – his ideas always are best, but your permormance of this is awesome!

Maybe you can shot video how it works?

-- Dad, husband and everythingmaker

View mirock's profile


196 posts in 2834 days

#9 posted 10-24-2016 07:44 PM

I think may add handle from top side

-- Dad, husband and everythingmaker

View Gouge61's profile


1 post in 478 days

#10 posted 08-24-2017 02:30 PM

I am making the same mortiser from Alex’s plans, but I am using Baltic birch plywood. Is the aluminum 1/4” thick or 1/2”? It looks like 1/4” in the photos. BTW, if you could CNC me one from aluminum, let me know!

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