Denford Software & Machines

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 Post subject: How do I create a raster cut in one direction ?
PostPosted: Wed 07 Mar , 2007 10:19 am 
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Enter as much information about your CNC hardware and software as you can - it makes it easier for everyone to know what you're talking about then.
A customer has asked how to create a raster plan for skimming the surface of a block, with the cutter only cutting from left to right.
They found that cutting the opposite direction gives a poor surface finish.


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PostPosted: Wed 07 Mar , 2007 10:25 am 
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Enter as much information about your CNC hardware and software as you can - it makes it easier for everyone to know what you're talking about then.
In QuickCAM 2D, there are no options to select climb or conventional milling.
However, there is still a way to create toolpaths that follow the direction that the line was created.
In this example, I have created a raster toolpath inside a D shape using the hatch tool. Because the hatches are created left to right, it will be possible to output a toolpath that follows the same direction.
(If you wanted it to run right to left, then you would simply mirror the hatch lines)


Attachments:
File comment: Select the shape you want to raster across in one direction
cut-one-way-1.gif
cut-one-way-1.gif [ 23.51 KiB | Viewed 1785 times ]
File comment: Create hatch lines with the hatch tool. You will need to experiment with the scale value in order to get the distance between lines you require (ie tool stepover)
cut-one-way-2.gif
cut-one-way-2.gif [ 12.23 KiB | Viewed 1785 times ]
File comment: Select the follow machining plan and choose the hatch lines previously created
cut-one-way-3.gif
cut-one-way-3.gif [ 14.78 KiB | Viewed 1785 times ]
File comment: * IMPORTANT *
In the post output screen, make sure the sorted tool paths option is turned off before posting the CNC G code file.

cut-one-way-4.gif
cut-one-way-4.gif [ 13.96 KiB | Viewed 1785 times ]
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