Compensate the tool radius G43

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Federica
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Joined: Mon May 15, 2017 11:26 am

Compensate the tool radius G43

Post by Federica » Tue May 16, 2017 6:08 pm

Hi, I would like to know how to use the G43 command to compensate the tool radius. I have a Shapeoko 3 machine and use the Carbide Motion program. If possible, make a code example with 10mm radius compensation. Thank you!!

CastIrony
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Re: Compensate the tool radius G43

Post by CastIrony » Tue May 16, 2017 8:45 pm

Tool radius compensation is G40/G41/G42. G43 is tool length compensation.

Of these, the only command supported by Grbl is G40, which turns tool radius compensation off.

Generally speaking, Grbl avoids supporting commands that are primarily used to write or tweak G-code files by hand, like variables, loops, branching, etc. If a CAM application is generating your G-code automatically, that application is a better place for this logic. I think radius compensation falls into this category.
Shapeoko 3 #192 - Complete! Needs limit switches.

Federica
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Joined: Mon May 15, 2017 11:26 am

Re: Compensate the tool radius G43

Post by Federica » Wed May 17, 2017 6:51 am

The G43 command is therefore to compensate for the length of the tool. How do you make a point ray compensation? Not in length but in width. It's possible?

WillAdams
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Re: Compensate the tool radius G43

Post by WillAdams » Wed May 17, 2017 12:04 pm

I believe G43 is now supported in Grbl 1.1
Shapeoko 3XL #0006 w/ Carbide Compact Router w/0.125″ and ¼″ Carbide 3D precision collets

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