I was thinking about something like this to make tramming easier. How it works: -This would attach between the spindle bracket and the Z extrusion of the Workbee - The circular plate would rotate on the hole that makes a square with the three slotted holes to level left and right. It's not rotating on a center point so adjustments may need more travel. - The smaller plate on the top and bottom of the circle is used to set your starting point depending on the direction of rotation. After making your adjustments you would tighten down the four screws on the circular plate. The top and bottom plates would be tightened against the circle as secondary support. -The holes closer to the top and bottom outside edge of the circle could be threaded or recessed on one side to allow a t-Nut. You would tighten the screw to push the top or bottom of the bracket outward. You would also have a nut on the outside between the plate and head of the screw to lock the position -The four holes in the center are for screws to mount the Openbuilds spindle bracket. These holes would need to be recessed on the back for the head of the screw.
