2009/10/28 Gene Heskett <gene.hesk...@gmail.com>: > My bed is wider and thicker over the last 2" on the right end, enough that > if I have it snugged down, I have to loosen the gibs to get it off. PIMA!
Are you sure it is thicker? Mine just had more paint on the bearing surface for the hold-down plates at that end.... If it is thicker, then you should be able to file it to the right thickness. I have reconditioned a whole lathe bed that way (to be honest I was about 14 so my Dad did most of the clever stuff). We did a shaper together a few years later taking 1/8" of wear out of the ways. 1) Find a reference. In the case of the lathe it was the underneath-surface of the ways. 2) File/grind to the same thickness as the thinnest spot every 2" measuring with a micrometer. 3) file/scrape the lands left in (2) using a surface plate and Blue until just touching all the the reference spots. 4) Final scraping flat and frosting. It's actually oddly satisfying, if time-consuming. With a V-bed it is somewhat harder. With an induction hardened bed, not easy at all. In the case of my chinese lathe the top surface is hardened, but not the bottom where the retaining plates run. > Using the QCTH, the tools are so far off center on the whole rig, its > difficult to keep the cross slide from rocking up half a thou, and that is > enough to get the chatter started I believe. Cutting with the compound > pulled way back reduces it, a lot. .... > Things such as this have discouraged me from trying to cnc it, If you CNC-ed it you could throw away the compound and fit a proper sized QCTH. That's what I did. -- atp ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
