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There are so many different ways to correct this issue.
Assuming your machine is in good working order and your tool geometry is good as well as your length offsets.
You could choose any/all of the following methods to correct it.
1 - choose the top surface as a check surface/avoidance surface
2- by using a boundary
3- by using Z depth limits
4- by using slope values. Only cut surfaces between 1 and 90 degrees of slope. ( assuming the top surface is flat/ zero degrees )
Carmen
This is the most accurate statement in this thread. This issue has been happening since it was introduced in the software. The ONLY fix I have ever come across is to completeyly close Mastercam and re-launch it.
Carmen
Using the 3D seat, I would use High speed area clearance to rough it out with a small ball end mill, then follow it up with waterline cutting from slope angle 30 degrees to 90 degrees, and then use raster cutting from slope angle 0 degrees to 35 degrees.
Carmen
To get the most out of the newest tools like Optirough will require you to drop old habits like pre-drilling. Not only does this take extra programming time, but it also adds to the workload on the shop floor setting up needless tools. Optirough will allow you to ramp your tool down to the appropriate depth to begin the clearing passes. Use it.......you won't be disappointed.
Carmen
This is really a simple question to answer unless I'm missing something. You can do exactly what you are looking to do with the old (legacy) toolpaths. Select Mill toolpaths/surface finish/pencil In the last tab of the toolpath settings, you can select "one pass" and it will accomplish what you are looking for. I would use "window" to select all the solid faces of one cluster, plus the floor face as my drive surfaces/faces to do the calculation.
I too would program just a single cluster and then transform the toolpath to the other locations.
Carmen
Seems like it has more to do with your tool description. From what I see, the tool is a 1.5" diameter with a .250 corner radius which results in a 1" flat area.
95% of 1.0" is .950"
If you want to get a larger stepover, reduce your corner radius of the tool. Highly unlikely that a 1.5" tool would have a .250" radius.
Carmen
Every situation is different, but picture a 4" square block with a 3 in bore through it. If the block expands, the bore gets larger too.
You are also correct with your description
Think about it...………… if you have a block with a bore, and the block expands, then the bore gets larger and thus reduces stock, not increasing stock.
Carmen
Mastercam has no ability to calculate the accel/decel of your machine. The tighter the tolerance, the more any high speed machine is gong to slow down in the corners. The only way to make the times be closer would be to loosen the tolerance control values or eliminate cycle 32, however, I have no doubt you would end up with poor quality parts.
Carmen
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