Corner Loops
▪You have the ability to select from different types of corner loops when beveling. However you may find that although you select an arc or a square corner loop, it stays as a triangle. This is because PrimeCut will choose to override that decision when there is nothing to be gained. The arc and the square have been retained in order to ensure backwards compatibility with simple bevel tools.
▪You cannot control the bevel rotation or angle for corner loops. Since they are there as a transition between bevel cuts, PrimeCut will use them as it requires to reposition the bevel for the following cut.
▪When the NC code is produced kerf swapping is used for corner loops, i.e. left kerf is used for the path and right kerf for the corner loop. This has the effect of moving the cutting tool slightly further from the part, allowing smaller corner loops, reducing the chance of nicking the part, and avoiding the possibility of kerf collisions. The figure below illustrates this more clearly.
Leadins and Leadouts
▪If you change the bevel angle for a path that is immediately after a leadin or immediately before a leadout, be aware that you will also have to change the bevel angle for the lead. PrimeCut will update bevel angles for corner loops, but not for leads since these can be modified independently.
Beveling with Plasma
▪When cutting with plasma the issue becomes one of height control. Voltage feedback is used to control the torch height, and consequently if the plasma is cutting across a gap we can encounter problems especially when using the bevel. As a result we generally cut the bevels in order of increasing angle (i.e. Bottom, Land, Top) but in the case of a K-bevel it is likely that you will need to use trial and error to find an approach that best suits your purposes. In some cases it may be necessary for the machine operator to use manual height control.