Knee jack for my drill press

[Frank S]

I have a couple floor standing drill presses neither are anything to write home about as far as being a precision piece of machinery.
My larger one has a 4 inch diameter column 12 speeds vis belts 1 1/2HP #3 MT in a 2 1/4" spindle with an 18x18 square table While it has plenty or power to plunge drill a 1" diameter hole through 3" thick steel the stupid table is only held on with a single 3/4" bolt and a dog point set screw to lock it from tilting. Even when drilling small hole like 3/8" I can feel the table flex downward so I solved this once and for all today by standing a trailer jack under the table with a length of 2" pipe on top of the jack I can set the table at the height I want then crank the jack until it is tight against the bottom of the table this removed all deflection in the table even while plunging a 3/4" hole through several layers of 1/4" steel in the drill jig