How to improve CAD Model Programme For CNC Machined
Today, CNC machining parts had been widely used in our daily life, so the existing CAD software functions are very mature, which simplifies the work of cnc programming. At the same time, the technical background and creativity of the programmers have also declined, and has created favorable conditions for the popularization of this technology. However, when using CAD to make CAD Model Programme, we still need to pay attention to modeling and parameter setting issues.
How to improve CAD model programme when CNC machining
When building model with CAD, as a result of CAD programmer more consideration how to the convenience and the integrity of the part designing, and ignore the impact of the CAM processing, so we need to determine the machining object and machining areas, thus to improve the model. There is usually the following:
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Determination of coordinate system
As the basis of machining, the coordinate system needs to be positioned in the position suitable for the machine operator, and maintain the unity of the coordinate system.
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Repairing some surfaces
For the unprocessed parts, the vacancy areas of the surface needs to be filled in. For example, curved surfaces and narrow grooves surfaces which need to be filled in and keep the tool paths safe.
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Increasing the safety surface
Such as: For the edge surface which need to be properly extended.
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Repairing the profile curve
For some data models are obtained through data transition, maybe it looks smoothly surface, in fact there is a breakpoint on the parts. For these problems that can’t be connected at the junction, we can repair and create the profile curve to get the best machining.
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Building tool path and limit boundary.
For the planned processing area, the boundary line should be used to limit the machining range.
How to set up the CNC processing parameter
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Cutting method setting for CAD Model Programme
We need to determine the action track type and related parameter of the cutter.
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Setting processing object
The user can selects the processed area reasonably, bank and other areas etc.
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Setting the tool and mechanical parameter
It’s to choose suitable machining tool for each different machining process, and set corresponding mechanical parameters in the software to ensure the smooth completion of machining.
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Setting the parameter of the machining program
It mainly includes the position of the feed knife and the position of the return knife, cutting amount, machining allowance and safety height.
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