The choice of router, laminate trimmer, or Dremel tool will be determined by the in/lb rating of your stepper motor on the different axis.
If you have a very low in/lb rating on your steppers, you might want to go with a Dremel tool. If the rating is 100 in/lb or better, you might want to go with a laminate trimmer. For High powered units which are rated > 250 in/lb you might consider a full size 3 HP router.
I personally am using a Porter Cable 7310 laminate trimmer. Lots of folks are using the DeWalt laminate trimmer. These 2 units use 1/4" router bits.
Hope this helps.
Jerry |