J. Clarke wrote:

charlieb wrote:
Since the MultiRouter was brought up as an alternative to
the Leigh, PC and the AKEDA, you might consider another
alternative - which eliminates the centering of the bit and
the roundness of the guide collar - the JoinTech Cabinet
Maker precision positionable router fence
snip
And unlike its competitor
it has a built in centering feature - eyeballing being one
of the problems with the competitor.

Eyeballing? One can measure you know.

Sure, you can measure, find and mark the center of the board
- that's not the problem. It's the aligning that center of
of the board mark with the center of the router bit that's
the problem. Few, if any, dovetail router bits have a convenient
center mark to align to.

If you looked at the photo of the sample DT with the gap problem.
you'd notice that either the pins part or the tails part is off by
a noticeable amount so that the pins part's top edge sits proud
of the top of the tails part - the two parts being of identical
width.
THAT indicates the pins or tails or both are not centered on the
parts width.

My Oh Bull**** alarm goes off whenever I see ANY machine dovetail
making tool claim "fool proof" and/or "no test cuts necessary".
It's getting the damn bit heights right that raises all the hell -
and
takes so much time to get right. And when you have to use TWO
bits to make the DT joint - you'e going to lose one set up to get
the other - unless you're using TWO routers - which you can do with
a JIG but not with a router table and fence system.