Rich,
I used the standard base in my old router table. Fine adjustments are not very easy as you have to put your hands underneath the table and twist the motor body to change height. The real problem I had is that wood chips got in between the motor and the based and scored the metal causing the base to be difficult to adjust. Now I have a new table and have mounted the plunge base. Works much better now that I have added a fine adjustment handle. Neither of these is an ideal solution as there are much better table routers out there (some of the Milwaukees have through the base adjustments built in), but the plunge base works better for me.
Noel
I am looking at buying a Porter cable 690 router possible with the
> opitional plunge base.
>
> My plan is to mount it under my table saw extension and from time to
> time use it as a freehand router
>
> When I mount it under my table saw which base do I use? I was
> inititially planing on using the standard base under the table. But I
> have some concerns....
>
> Can I get a micro adjustment with a standard base? My plan was
> initially to get something that can micro adjust from the bottom and
> convert it to a router raizer type setup later when I get some more
> cash. However when looking at the router raizer site it appears they
> only work with the plunge version.
>
> If I use the standard base is there a way to micro adjust it from the
> bottom? And is there a way to convert it to a top adjustable setup
> later for under $100. I know jessem makes a $200 router lift but was
> wondering if there is anything in the $100 range that works with
> standard (non-plunge) routers?