5 replies to this topic

[Paul Burrowes]

Hi All,
is there a way to limit the accuracy of a 4th axis drilling output  to so many decimal places?
If i have say 10 holes to drill so i use pi as 3.142 x dia all is fine but because pi has so many decimal places when it out puts the code
i get the first hole at say 36.002 then 72.02 ect insted of exacly 36 deg and 72 ect..
is there a way to over come this.. if i know that the out put should be exacly 36 and 72 how can i make this so
thanks

[gcode]

This is usually caused my a minor inacuraccy in the toolplanes used to define the angle.
I get this sometimes when using part geometry to define toolplane angle.
Best results are achived by using the Plane/Rotate command to rotate an exisiting system plane

[NOTW Programmer]

Are you rolling the toolpath, post a pic of the geometry identify the problem better. If you are in fact placing the geometry at the defined angles than it might be what gcode mentioned, it could also be you Max/Min angle tolerance in your Control Definition.

[chip]

I'd just leave it..... how much is .02 deg?

[Paul Burrowes]

its when i roll a toolpath...
i now that 0.02 isnt much but just wondering if its possible to make it exact thats all
Thanks all.

[rocheey1]

Paul Burrowes, on 29 October 2011 - 05:10 PM, said:

its when i roll a toolpath...
i now that 0.02 isnt much but just wondering if its possible to make it exact thats all
Thanks all.

if you are dealing with Pi, it will never be perfect.
So then its just a matter of keeping the round off to an acceptable value.