On Monday 22 February 2016 04:23:12 andy pugh wrote: > On 22 February 2016 at 04:33, Gene Heskett <[email protected]> wrote: > > The printed manual that comes with a G0704 does not saw which > > direction to drive the gib to tighten. > > Is it a tapered gib? If it is then the screw will be on the big end, I > don't think I have ever seen one with the screw on the small end, and > it would make assembly very difficult.
It has a screw on each end Andy, and as opposed to having a keyed screw that can pull either way, its locked in position by being trapped between the screws. For the rear Y, needs a very short screwdriver. Not the easiest to get to, and the bottom screw on Z is covered by the post covering bellows. I finally bent that enough to get some suture clamps in and turn it about 20 degrees at a time. Overdid that, making slow z descents sticky, and had to back off the top screw & take up the bottom one until that went away, along with a liberal puddle of way oil & a couple runs up and down the post to distribute it. That wasn't adjustable to get rid it it on the HF toy mill even if I could feel it move sideways it was so loose. That was finally fixed by a bar of 1/2" alu screwed to each side, carrying a ball bearing on each end that rode the post, effectively adding about 2" to the heads wheelbase top and bottom. With that steel bar sticking up well above the top of the post holding a ball bearing pulley that a couple screen door springs attached to the post, going up over the pulley and back down to a wire loop to two of the motor mount bolts, that works well now and doesn't have to be oiled 3 times a day. Its the very essence of rube goldberg though. Not one of my finest moments. :( I am considering such a contraption for this one, that nema 34 motor is busting its butt to make 40 ipm going up. In these here parts, welding a lift eye onto the ends of a couple pieces of old mine belt shafting would be easiest to source for counterweights. I can buy that stuff by the pound at the recycle collectors. And its very hard steel, hell to machine. BTDT, made the motor couplings for the toy mill out of it. But nitrogen struts would be a lot less mass to accelerate, IF I could find suitable ball posts that would space them out an inch from the post & most aren't that high. Might have to make those. Just more round tuits to find... Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
