I made an outfeed roller table, which is very simple yet very precisely matching the height of my Makita NB2012 Thickness Planer. You can use the same idea for any thicknesser, as long as you match the height of the rollers, which I explained in detail how to calculate that height.
This design puts the emphasis on the accuracy of the top level of the out-feed rollers, to avoid the thickness planer's snipe or at least to reduce the snipe as much as possible.
This project uses very cheap materials, which is PVC pipes to be used as the outfeed rollers, broom stick for the shafts, and some solid wood scrap drawer front for the sides.
To achieve the desired accuracy, the use of quality power tools is preferred, however all parts can be easily produced using hand tools as long as the extra precision efforts are practiced.
To take the advantage of the precision made outfeed roller table, it's recommended to use it together with the thickness planer on the flat bench top.
I've added the grub screws underneath the sides, to allow leveling of the out feed table and I'll make a video showing that in the future.