Portable Slot Mortising Machine (Domino Style)

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Project by Machinist posted 10-07-2016 07:19 PM 2993 views 6 times favorited 9 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.


9 comments so far

View Scott Oldre's profile

Scott Oldre

903 posts in 3151 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


5810 posts in 2724 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


6156 posts in 3088 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


3370 posts in 2805 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 78 yr young apprentice carpenter

View Peter's profile


21 posts in 3832 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


10594 posts in 2588 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 317 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


186 posts in 2351 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


186 posts in 2351 days

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

I think may add handle from top side

-- Dad, husband and everythingmaker

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