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Actually, to properly thread a hole, the hole needs to be countersunk first, otherwise, the first thread will pull out of the hole and the screw will be difficult to start.
That said, it's common machine shop practice to csink the hole, it's not required to be on the drawing...
A normal part of threading a hole is to include a 60 degreee countersink. This provides a lead-in for the screw as well as preventing the first thread from pulling out. I was a machinist for years, I know what I speak of.
A normal part of threading a hole is to include a 60 degreee countersink. This provides a lead-in for the screw as well as preventing the first thread from pulling out. I was a machinist for years, I know what I speak of.
The question that remains un-addressed is: Do you want it on your drawing? And if not, how to set Pro to not include it. I'm still on 2001 so it only a matter of a check box.
I choose not to include it on my drawings. Just like I don't include a chamfer or round where I require sharp edges to be broken. Adding a lead in countersink is standard practice in our shop and explicitly illustrating it on a drawing would only add un-necessary clutter to it.
The difference is the perpose for which they are used. Countersinks are used so that the head of a fastener is flush or below a part surface. A chamfer is used to remove a sharp edge. Therefore, unless the surface is used to seat a fastener, techically, it is called a chamfer.
You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".
Sander,
What I find helpful ...
_Select an existing hole Feature that's configured as you want.
_Copy, Paste Special (I have a mapkey for the sequence)
You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".
This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).
You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".
This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).
I only mentioned it because I wasn't sure which version of ProE you use and I have only used Wildfire 2. So I'm not sure how previous versions of ProE handle this.
I also think the argument is due to the fact that people have different backgrounds and are arguing points from those backgrounds. After looking a little more at what dross was saying I think I understand why dross calls it countersink. From my perspective, what dross described earlier is a machining operation, he countersinks the hole so he can tap threads or add helicoils, therefore he calls the feature a countersink. However, from my background, even though you performed a countersink machining operation and from the situation described, I would not call the feature created a countersink.
You can countersink a thru hole using the "standard hole" iconand removing the tapping (Wildfire 2). I read somewhere that PTC is, supposedly,adding the functionality towhat they call a"straight hole".
This comment actually reminded me that i have already had a thread like this and I came to the conclusion that it was possible to countersink a clearance hole in WF 3.0. So, i looked into some more.... I would bet money on this. The countersink option is default in a threaded hole which makes no sense to me but the threaded option is grayed out. I think the threaded option was supposed to be default and the countersink option grayed out (maybe, maybe not; don't wanna argue this anymore).
I only mentioned it because I wasn't sure which version of ProE you use and I have only used Wildfire 2. So I'm not sure how previous versions of ProE handle this.
I also think the argument is due to the fact that people have different backgrounds and are arguing points from those backgrounds. After looking a little more at what dross was saying I think I understand why dross calls it countersink. From my perspective, what dross described earlier is a machining operation, he countersinks the hole so he can tap threads or add helicoils, therefore he calls the feature a countersink. However, from my background, even though you performed a countersink machining operation and from the situation described, I would not call the feature created a countersink.
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