<%@LANGUAGE="JAVASCRIPT" CODEPAGE="1252"%> FEATURE BASE SHAFT
FEATURE BASE SHAFT
Problem: Revolution sketches are too complicated for setting up tooling paths in Esprit.
Reason: A revolution sketch containing more than 1 manufactured process is causing the programmers to spend extra time extracting features from the model to process the program.
Solution: A revolution sketch needs to be broken down to individual revolves per manufactured processed feature. Some controversy on how to approach this problem will be dealt with by testing some of these ideas. For now any of these should work.
A sketch for each feature of the revolve
A shared sketch for the entire revolve
Use extrusion features instead of revolve

You can't go wrong if you start with stock just like the machinist will get on the floor. (Below)
Here is the first end, just when the lathe work is done and before the part is un-chucked and turned around. You should begin working from the other end now, one feature at a time.
Now for the other end, lathe work.
Notice (above) that I filleted the one side because everything should be done on that side. A programmer may want to turn the fillets off or leave some meat on od1 for grinding later.He can do that when the features are broken down in a logical manner.
Now we start removing material from the other end. Just like you took it out of the lathe chuck and turned it around, indicated it in and started turning to finish the shaft.
After all is said and done, take a look at the tree and be satisfied with the results. A logical order to the part should be apparent. If something stands out, now is the time to fix it! These models are in the vault and can be found by name, shaft yes and shaft no. The difference in file size is minimal, they are both about 150 kb
Below is correct Below is incorrect
If you did everything correct, the origin planes should dissect the center (right)
Example 1. Shaft- The axis of the shaft should pass through the origin. The length does not need to be centered at the origin. It may make more sense to have either end of the shaft at the origin, or a critical shoulder location. Keep in mind that when constraining the shaft into an assembly, many times I have wished that the Z plane passed thru the center so I could position the assembly to it.
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