Using the gauge you can measure the outfeed table and set as 0. I then move the gauge over the blades and set them at 0 also. With the base still on the outfeed table, I then pulled the base and gauge from one side to the other so I could read across the knife edge to make sure the whole blade was 0. I was within .002. One of the blades was .000 across the whole blade to the outfeed table. I found that I was not able to be this precise using a board or ruler. The gauge gives me confidence and precision for the setup. I think it is a lot faster than using feeler gauges. The trouble I had with feeler gauges is you are using a flat piece of steel on a round object the cutter head which seemed to cause me problems. On my jointer the outfeed table needs to be .060 above the cutter head so you need to adjust the outfeed table. There were many times when I tightened the blades down and I would be .010 or more out on one end. I would then loosen the blade and start over. It took me a couple of hours to get the blades set right.
The first thing I tested was to make sure the outfeed table and the infeed table were coplanar. I used a 48 inch straight edge, level, to make sure the tables were flat to each other across the whole length of the planer and to make sure I did not have any high corners. I then set my 0 mark on the scale and set the maximum up device.
Last edited by coxhaus; 11-28-2016 at 12:24 AM.