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Author Topic: Quirky results from G2 command - help a newbie!  (Read 11303 times)

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Re: Quirky results from G2 command - help a newbie!
« Reply #10 on: July 25, 2006, 05:42:29 PM »
Thanks Brian. How do I get Lazy Cam?
Re: Quirky results from G2 command - help a newbie!
« Reply #11 on: July 28, 2006, 08:23:59 AM »
It is free in the latest version of Mach3 :) Just look under File at the top of mach 3 .
Fixing problems one post at a time ;)

www.newfangledsolutions.com
www.machsupport.com

Offline ger21

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Re: Quirky results from G2 command - help a newbie!
« Reply #12 on: July 28, 2006, 08:53:38 AM »
I want to use the shape below to machine two pieces of material. Can I machine inside the shape using cutter compensation to create a pocket, and then in another piece of material, machine outside the same shape by compensating in the opposite direction, so that the male and female parts that result will fit precisely into each other??  The dotted line is the actual shape that I have created in Illustrator and converted to DXF

You'll usually need to leave at least .003 clearance for the insert part to fit. You can create that .003 by lying about the tool size. Tell Mach3 it's .0015 smaller than it is.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline ger21

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Re: Quirky results from G2 command - help a newbie!
« Reply #13 on: July 28, 2006, 08:55:21 AM »

Let's say that 2" squate path was a piece of material you wanted to machine, like a 2" square coaster. Would I program the path to be 2" square and then use G42 for the bottom and right hand cuts and then G43 for the upper and left hand cuts? Would that yield a 2" square of material?

I have a reason for asking this relating to my next project....


No. Assuming your traveling around the part CCW, the offset will always be to the right, so G42. G41 is Left, btw. G40 turns off the comp. G43 is length compensation.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline ger21

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Re: Quirky results from G2 command - help a newbie!
« Reply #14 on: July 28, 2006, 08:56:29 AM »
OK I ran that code. So we're tracing a square path 2 inches by 2 inches. Using G42 we're recalculating the toolpath to be offset by 1/2 the cutter diameter to the right only. Would that be right?

Correct.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html