On Tue, Nov 18, 2014 at 8:41 AM, andy pugh <[email protected]> wrote:
> On 18 November 2014 13:10, Mark Wendt <[email protected]> wrote: > > I'm still trying to figure out how, on my machine without a moveable Y > axis > > (in other words, since I have no real Y axis movement - the gantry just > > moves along the X axis and the Z axis goes up or down), do I still need > to > > have a Y coordinate on the setp line? > > I was using (x,y) generically to describe how lincurve works. Imagine > it as an (x,y) graph on a piece of paper. The X and Y have absolutely > no relationship to your machine axes. > > The X points do not need to be equally spaced. if you have a step, > then use two X values very close together. (identical is allowed, for > a real step-function, but your Z axis would not be able to follow > that). > > The input to Lincurve would be your (actual) X axis position, the > output of the lincurve (inteprolated from the Lincurve "y" values) is > added to the Z axis commanded position as a correction using the > "offset" HAL function. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > Andy, Okay, I think I'm beginning to understand how this works. I was thinking the X and Y values actually relating to an x,y coordinate axis system. Makes a lot more sense now. Thanks, Mark ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
