Hole Depth and Machining

[chris31]

Inventor dimensions Hole Depths to the shoulder of the drill; ignoring the point. When our machinists setup a job, they typically touch off the job to the point of the drill. Is there an easy way to compensate for this difference? How do you handle this? Thanks... Chris

[mcgyvr · Accepted solution]

Nope.. not without manually adding the dimension.. or letting the machinist calculate it. 

http://forums.autodesk.com/t5/inventor-ideastation/hole-dept-to-point-of-the-drilled-hole/idi-p/5367...

http://forums.autodesk.com/t5/inventor-general-discussion/drill-depth-to-drill-point/td-p/2366457

Of course any CNC shop should have CAM software that automatically takes care of that anyways. 

Just in case you aren't aware.. You can get HSM express for free now. But it needs to be run on a station with Inventor as its an addin for Inventor.

Or you can buy the full blown version along with various other CAM solutions that open native Inventor files or even just step/iges files. 

[Mario428]

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@CHriS wrote:

Inventor dimensions Hole Depths to the shoulder of the drill; ignoring the point. When our machinists setup a job, they typically touch off the job to the point of the drill. Is there an easy way to compensate for this difference? How do you handle this? Thanks... Chris

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Has always been this way mostly because there are 2 common drill point angles, 118 and 135 so you would have to know the drill angle being used.

118 degrees is easy, extra depth is 1/4 of the drill diameter.

Keep specifying diameter depth, less issues down the road when the depth is not right because of drill point angle

[chris31]

We do have a copy of Mastercam X8, which I have just starting using. I need to look at the Parameters to see how to compensate.

Thanks...