）| Lead in distance and Lead in factor（我翻译为切入距离和切入因素，感觉辞不达意） These two fields are related and they control any slowing down of the tool as it enters material. When the tool enters material the feed rate will be reduced until it is fully engaged. The amount by which it is slowed is controlled by the lead-in factor. If the lead-in factor is 100% the tool will not be slowed down. The lead-in distance increases the distance over which the lead-in factor is applied. The lead-in distance is applied to the start of the lead-in region and is specified as a percentage of the tool diameter. Lead-out distance and Lead-out factor These two fields are related and they control any slowing down of the tool as it leaves material. When the tool leaves material the feed rate will be reduced until it is no longer engaged. The amount by which it is slowed is controlled by the lead-out factor. If the lead-out factor is 100% the tool will not be slowed down. The lead-out distance increases the distance over which the lead-out factor is applied. The lead-out distance is only applied to the end of the lead-out region and is specified as a percentage of the tool diameter. Minimum feed rate change This controls the smallest amount the optimized feed rates are allowed to change by. A new optimized feed rate value that changes by less than this amount will be ignored. Maximum feed rate This is the largest optimized feed rate value allowed. Minimum feed rate This is the smallest optimized feed rate value allowed. Minimum change distance This is the smallest distance for the tool to move between feed rate changes. Simulation tolerance This field specifies the accuracy that is used to model the cutting process. The smaller this value the more memory the model will use and the longer the processing time will take. Choose a value that is appropriate to the component and tool path. For example roughing paths do not need a very high accuracy because generally they will be leaving on material for the next stage of the process. As a rule of thumb, divide the smallest tool corner radius to be used by 5 and use that value except where this is very small (< 0.5 mm) in which case use the tool diameter divided by 10. If there are multiple items in the task list then use a value appropriate for all the paths to be processed. |
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