Re: offset turning macro?
hy rcs you could use a software, or write g-code, etc : if the function is not inside the controller, then it will all be in vain
whatever the programing method, it all comes in the end to how the cnc behaves among a toolpath with many small segments, that are literally such small, that the cnc can't reach programmed feed
for complex 3d shapes, the segments may be really small ( their length is close to, or even smaller than in_position tolerance ); such a case will succumb the cnc
if the special cnc function is there, then it simply smooths out the movement :
... okuma 5th axis : supernurbs
... okuma lathes : cam function ( optimizes xs, and uses a lighter turret )
... citizen gang : tool gang is not heavy, thus it can be 'handled' more easy by the servos
depending on shape, is not a must to have y axis, thus a simple excentric circle can be generated only with x
if the special function is not there :
... i once heared a rumor that is possible to obtain an excentric shape by using a threading cycle
... i once tried to turn a hexagon, by using the c axis; it worked, like i did obtained a shape close to a hexagon, but the axis couldn't deliver constant rpm, but it was more like agrresively accelerating and decelerating for each side, thus there were 6 shocks during each full spindle revolution; the insert couldn't resist, and it was not possible to smooth out the motion
a particular case is that of coding directly the movement for cnc's controlled through linux, but i don't know to what extent
I was told be a machine tool distributor that the doosan lynx2100 lsya (y axis ) could do this but would need a good cam system
if you wish, we could test your machine, thus at least i can help with generating the segmentation; however, before thinking about a good cam, i would ask what g or m should be used in order to control the spindle phase in relation to turret position; any machine tool distributor that has an application enginner should be able to give exact infos about the required code, or a program sample, or anything, just to show you that your machine can actually do it / kindly
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