The objective here is to have 1 1/2” of leveling adjustability as well as being able to transport table on casters. The way I decided to do this was to have ladder casters extend downward with toggle clamps during transit.
For the smaller tables I used 5/16 rods attached to a 2” wheel. For the 800# table I used 3/4” x 4” lg. ss standoffs for the ladder portion attaching to dual 2” casters.
I needed to provide laterial support for the ladder/standoff portion of the caster. I also needed to provide rotational clearance for the caster/leg.
On the 800# table there could be an additional load on the table of approx. 1000#’s. So I needed a way of supporting the standoff with no more than .015” clearance around the shaft. So the final location of the hole was done after the toggle clamp was mounted.
A 1/2” dia. hole was initiallty mounted in the leg gusset. A locator pin was inserted in the clamp and a 13/16” pilot hole was centered to the pin, clamped and drilled. This located the hole to the shaft as required.
The need for all this adjustability is that there are 7 tables that clamp together with a total of 54 legs. The center table with 12 legs and 8 casters shown below.
Will be leveled to the floor first, then the surrounding tables to follow. A total distance of 26’ from one end to the other will require 1” or so of adjustability.
-- Brian, Wind Gap, Pa.