Convert g2 g3 r to g2 g3 ijk

[Charon]

Hi, what is the formula to convert a G2 or G3 command with R option to IJK option? my CNC board only accepts IJK version But some CAM software only output the R version. I am sure that this was talked before, but i cant find almost anything.

Thank you,
Dan

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[deadlykitten]

hy if you can't fix your postprocessor, i can help you

ijk are more or less control specific ( try i for x axis, and k for z); represents the signed distance between center and start-point; pls check also attached

also tried to sent you a message / kindly

[Charon]

deadlykitten, i dont have a lathe, i have a router.
I need to transform g2 xyr into g2 xyij.

[deadlykitten]

pls, active your private message

also, you may find attached generic ijk for milling

[metalmayhem]

some cnc editors have the options of converting files , ncplot for one does

[Charon]

metalmayhem, thank you for reply, but i need the theory to implement it in my software.
deadlykitten, i have checked all my settings, private messaging is activated, i can receive messages from everyone. I know what IJK are, i want to calculate them only from start point, end point and radius. User Kiwi had made a small piece of software that calculate exactly that, but he is not active anymore...

[Charon]

This is the software, i need the theory behind

[deadlykitten]

pls, try to send me a message

[deadlykitten]

hy, i can't reply pls, if you wish, leave an email