I discovered a little design problem with my grinder today.... but no worries as I also came up with a solution and it just gives me a little more versatility.
This is a basic concept drawing of the grinder.Everything is fine in this view.
This is a concept view of the grinder after spindle inversion to have the wheel perpendicular to the table instead of parallel to the table.( The spindle inversion is super easy and simple on this grinder , unlike the Quorn or Bonelle.) The problem is the wheel is way over the table and does not leave enough room for using the air bearing in this mode. To remedy this, I will make the column assembly sit between two small rails on the base and by loosening a clamp, the column will slide parallel to the table allowing the wheel to be placed in any location, I wish, in a 4 inch travel range. This problem was kind of a blessing because the fix is simple. and it will give much greater versatility to the grinder. I'm off to the metal store to get some stuff to make the fix with.
Another problem found ...and solved.... was the micrometer stylus I made to set the height for grinding flutes was way too big to fit over the table. The design was OK for the Bonelle as there was no table under the stylus area. So...... I knocked it apart and cut it down so it will work on my new grinder
This is the stylus before I cut it down. The bottom end is about 2 inches long and there is .500 inches of travel on the micrometer. each mark on this micrometer is .001". it is easy to approximate a 1/4 thousandth setting on it with reasonable accuracy ( even though that accuracy is not required).
You can see in this photo, the micrometer is cut down to 1 inch long and will fit nicely on the new grinder setup. I still have .400" of travel. ( the stylus is too long right now. It will get cut shorter once the air bearing is mounted to the table and the length can be determined. The stylus will be .200" above center at "0" , allowing plenty of adjustment in either direction.
I have ordered a new plate for the base, metal for the column mount, and a plate to make a 1/2 riser adapter to make the air bearing fit this table. It should be here this weekend. I also went to the store and bought some aluminum bar to make the rails so the column mount will be movable.
I also made a half dozen "T" nuts for the table to hold the accessories in place.