Any way to force conventional milling in Carbide Create?

Hello all,

I was wondering if there is any way to achieve or force conventional milling in Carbide Create. I read in a different post you can offset the path and use a different cut type? But I honestly don’t know what that means.

Any help would be greatly appreciated!

Please define ‘conventional milling’ for us novices.

Thanks, Bill

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Thanks for the reply!
I am a complete beginner, only had my router cnc for a week. This is the most straight forward explanation I found Climb Milling Vs. Conventional Milling .

I am using Carbide Create to save out the G-code, but I noticed on the pockets it does cut “Conventional” but on contouring it ends up doing the “climb milling”. In other programs, I saw a checkbox for conventional, but I don’t want to pay $350 just yet to do the same thing Carbide Create does just as well.

I am only using acrylic, but I did notice a much better finish in the pockets.

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Please post a file which you wish to do this in in Carbide Create and indicate where you want the reversed direction and we’ll walk through this w/ you.

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MachineTest_5mmAcry_1line245mm.c2d (13.5 KB)

This is the file I have been testing my router with. Basically I need the movements to go clockwise on every operation. The pocket goes clockwise, but the contour goes counterclockwise.

Thank you, I appreciate it!

To make the outer contour go counterclockwise:

  • select the outer geometry and offset to the outside by 3.175mm:

  • select the offset geometry and assign an inside contour toolpath:


It sounds like you are getting conventional on both cuts with what you are describing. Since the rotation of the bit never changes you have to change the direction of the router depending on whether you are inside or outside the cut. if clockwise is a conventional cut on the inside of a shape, then counterclockwise will be conventional on the outside of a shape. by forcing both to go clockwise you will actually be climb cutting the contour pass.

does that make sense?

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Thank you very much for this! I appreciate the help

That does make sense. I am completely new to this so I don’t know much of what I am asking here. The only thing I read is that conventional works better for acrylic using a single O flute bit. I did notice the pockets have a better finish than the contour. My spindle and router are not very powerful so I’m just looking for the best results with what I have. I guess I will do a test with both methods and see which one gives the best result. Thank you for the input :smiley:

I am fairly new to this stuff myself but have been using routers for years…

Like I said you are getting a conventional cut on the contour pass for your object. you are however climb cutting on your stock (the piece you are cutting out of). what you are doing is engaging both sides of the bit at the same time. so if you don’t like the finish on your part you might try following wills method above. This will clear out a path around your piece first that way when it cuts the piece the bit is only engaging on one side (the piece) instead of both sides (the piece and the stock).


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