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Drill Bore Comco Tool


carryinwood
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38 minutes ago, JParis said:

You 'll need to define it twice

No you can define it one, but you cannot use a drilling cycle to drill with. You will need to either use a line that puts the tool at the correct diameter to drill with or use a Point toolpath to drill with. Either of those operations require you to define it a boring bar and then use it as a drill then bore with it. Not define it as a drill and then try to bore with it. Software is doing what it should be and keeping the programmer for doing something wrong. 

HTH

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3 hours ago, 5th Axis CGI said:

No you can define it one, but you cannot use a drilling cycle to drill with. You will need to either use a line that puts the tool at the correct diameter to drill with or use a Point toolpath to drill with. Either of those operations require you to define it a boring bar and then use it as a drill then bore with it. Not define it as a drill and then try to bore with it. Software is doing what it should be and keeping the programmer for doing something wrong. 

HTH

The benefits of the method above is it allows you to just define 1 tool and use the exact same tool offset which is off edge of tool. Disadvantage is your going to always need to have a line made at the radii of the that tool, but that is still pretty easy since in mastercam we can import the toolpath geometry with a toolpath when importing. So this method has those pros/cons. One potential disadvantage is you don't get standard drill cycle settings if you do this since a finish toolpath will be used and not a drill toolpath (like any drill toolpath specific setting like custom drill cycles)

 

with jparis's method that he mentioned that is really good too because some advantages to his method is you will have 2 tools defined, one a drill and one a boring bar so you will be using a standard drill toolpaths for drilling instead of a finish toolpath and the tools can be saved to a library of-course so its not very difficult to set these two tools up. One potential disadvantage is typically 2 offsets are used (on both the machine and in mastercam), like T0101 and T0102 for example (same tool different offset) so the operator then needs to setup too offsets because one offset comes from centerline for when the tool is being used as a drill and the other offset comes from the edge of the insert for when using it as a boring bar (because the drill path is from centerline of tool and a boring path comes from the edge of the tool). another advantage to this method is being that you are using a standard drill cycle you will get all of the standard lathe cycles, like pecking, dwell at bottom of hole options, custom drill cycles if you have any, etc. if you plan on doing any of that defining 2 tools might be a better fit for you but if your just going straight in/out of the hole i might suggest doing this with Ron's method above (especially if you export the path when done so you can use it on future jobs, can import that line or toolpath geometry and Finish toolpath and easily analyze the line (f4) and adjust its length on a per part basis, since not all parts will be drilled to the same length. This is another thing to consider is using 2 toolpaths with 2 tools leaves you adjusting the drill depth in a normal way, through the depth field in the drill toolpath, however if you use a finish toolpath for drilling then you ofcourse will be editing the depth in another way like shortening the chain.

 

So its really up to you, there is some advantages and disadvantages to both methods but i tried to list all i could think of to help you decide and there might be other pros/cons to each method that i hadn't thought of. 

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