On Tue, 18 Feb 2014 10:37:12 -0500, you wrote: >Hey, all! > >I normally just listen to the wisdom spouted by all you experts (the >status of which I aspire to reach someday!). I built my own >gantry-style router running LCNC. Each side of the gantry is driven by >it's own stepper and Acme screw. HOWEVER, to avoid racking, I have both >sides locked in alignment via a toothed drive belt connecting the two sides.
Nice one :) I saw a laser cutter that had two coarse pitch ballscrews on the x axis linked by a timing belt at one end and driven from one servo. The op was telling me it was a bitch to set up initially. The ballnuts were threaded into the mounts under the gantry uprights and had a locking nuts to fix the position They had to be tweaked to get the whole gantry square but once done, never touched again. Took two installers three days to get it set up. I can't remember the machine manufacturer - some Swiss company, IIRC. Steve Blackmore -- ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
