Thanx Gentlemen for the replies. Scissor jack are too big and most rack and pinion on drill presses as you raise and lower them kinda wobble sideways. I need a jack that is flat, my idea is to have something roughly the same size as my cross table base and maybe only 2 to 3 inches high with a wheel handle that can lower it and raise it. Maybe have a 1/4 steel plate cut the same size as my cross table basewhich the base would be mounted to it. Underneath the plate would be 4 screw nuts roughly 2" long spread out evenly towards the corners of this plate. This would then be lowered down over 4 vertical acme screws(2") that are attached at one end each to a flat gear (1/4 thick by 2" diam). In the center of all 4 gears would be another flat gear with a bevel gear on top of it which a horizontal rod with another bevel gear at one end and a wheel handle at the other end. This assembly would sit in a steel square base. My only problem is I researched prices for the gears and for as much as it would cost to build this I can buy a mill just about.
Yeah I,m considering that and also the scissor jack . I,m sure that I,ll end up fabbing something as the space that i,m needing to work in is confined. I need something that is only a few inches tall and can raise up just a few inches.
Yeah I know that but until I get the cash up for that this gonna have to do, I bought that milling table because for one my customers I have to fabricate some parts in hurry and that milling table was all I could afford at the moment. ANd I figured it would be cool to go ahead and convert it to close to a real mill. I plan to get a real mill in the future but for now I just want something I can practice with. And that still leaves me with designing and fabbing a z axis table, I mean does my idea make sense on the cheap side? I know there are many other people that come to these forums and ask the same question how to do things on the cheap and if I can figure a way to do it( along with the helpful input of you Machining Gods) and at the same time help other people in their quests well its worth it to start a thread like this one.
Oh I can appreciate what your saying and agree with ya 100%. But let me ask you this? did you just add a milling table and then just lowered the spindel to mill? .... What I,m getting at, is it possible that by lowering the spindel and extending the spindel shaft that it loses its ridgedness therefore causing vibration to allow the chuck to fly off?