Homemade, shopmade, a nifty piece of work.

Double Barrel

The video below is on the long side (13.50 minutes}, which is to be expected given that the inventor has to explain without words (to those of us who do not speak Russian) how he built a simple tool that does something so complicated.

Highlights include:
1:10 installing the router
210 flipping the router over for left-hand use
4:35 connecting the hose for dust collection (yeah, this thing even has a dust collection port)
5:30 demonstrating the stop which controls depth-of-plunge
6:10 the bungee that pulls the router back at the end of the cut
6:40 adjusting the fence
9:50 showing the bevel scale

Here’s where it gets interesting:
10:47 Inventor points to the adjustable bolt the controls the width of the mortise. At this point it’s as far back as it will go, so the tool can only plunge straight forward and make a circular hole
10:50 if you move the bolt forward, to where there is more space between the v-shaped guides, the router can swing side to side and create a wider mortise.
11:15 inventor moves the bolt forward to adjust the throw of the tool — and thereby, the width of the mortise; the farther forward he moves it the wider the mortise will be
12:00 shows straight plunge used to drill dowel holes
12:45 inventor shows how the bit can be moved side-to-side (after moving the adjustment bolt forward) to cut a mortise wide enough to accept a Domino tenon.



Using a Bosch GKF 600 palm router .

https://www.youtube.com/watch?v=F0FpgdzR56c

Makers home page
To translate from Russian click translate at the top of the page.

http://www.instwood.com/2013/01/portable-mortising-router_6259.html

recipio

A home made version of the Festool Domino ? Nicely made in fairness but confined to 1/4 " spiral bits and the action gives a tapered mortice ? Still a hell of a lot cheaper than the Domino.