[joshy1323]

Originally Posted by minisimon

In addition to using large screws, you can increase the width of your hexagonal puller so that it almost touches the two sliders. Such a configuration won't attempt to bend the screw; only shear it, and the screw should be able to handle that better. You probably won't be able to use a simple hex standoff for the puller any more, but you seem to be up for some machining.

i agree completely

Originally Posted by ZeroValue

how much should the "lips" go above and below the pocket in the aluminum to keep it from twisting?

that depends on what you are using it for. what kind of force do you plan on putting on it that would make it twist?