[Wildwood]

Andy

The Dremel Trio could have been so much better if a bit more thought was put into it. The biggest 'bugbear' was the lack of a proper plunge mechanism, and as you note, adjusting the depth of the bit is "hit and miss" - and the edge guide was designed by someone who didn't understand the function. For all that, I have found it to be quite useful for certain work.
Here is a link to a thread I posted way back some years ago, showing my rough table, and a sign I made - go further in the link to see an elaborate sign I made using the cutting function of the Trio.
https://www.routerforums.com/show-n-tell/53609-house-name-sign.html
I would be keen to see a picture of the table you made. I too have given thought to how the bit depth could be smoothly adjusted, but short of an 'engineering makeover', I'll just muddle along.

Rob

 

[Wildwood]

@RiovistaAndy

Your table is a bit more elaborate than mine - if you followed my link you would have seen that mine doesn't even have a fence, as my main use has been for rounding over small cut out lettering. But I like the idea of a finely adjustable fence like you have made. Fine bit height adjustment is always going to be problematic, because of the tool's design. For repeatability, once I have achieved an exact height that I want, I cut a notch of that height in a baton, and clamp it across the table over the bit while I adjust it.
If you think of a good fix, please post it.

Rob