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Countersink within a countersink problem - What am I doing wrong?
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DanL  
#1 Posted : Monday, March 9, 2015 9:20:39 AM(UTC)
DanL

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Joined: 1/28/2015(UTC)
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I'm trying to make a smaller countersunk hole within a larger diameter countersunk hole. The manual is not much help, and I've tried making the longer, small diameter hole first, followed up with the shorter, larger diameter hole, and vice versa, but no go, weird things continue to happen.

Countersink image

Here is my test file...

Countersink within countersink

In this particular file, you can see that I created the larger one first. At the bottom of that hole, I'd like to create a smaller countersunk hole, with the same 118° drill point, going deeper into the solid, any (non-through hole) depth.

Is there a specific order I need to use to make this?

Thanks,

DanL
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Tim Olson  
#2 Posted : Monday, March 9, 2015 10:52:56 AM(UTC)
Tim Olson

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Joined: 2/2/2007(UTC)
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Hi Dan
Hole features are tied to a face. From the face it extracts a normal and location to align/position the hole. If you have added a drill point, there is not an uniquely defined normal/face at the point.

If you don't need the drill point on the first countersink, you can add a second countersink to the bottom face as shown in the attached image.

Tim

Edited by user Monday, March 9, 2015 10:56:13 AM(UTC)  | Reason: Not specified

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Tim Olson
IMSI Design/Encore
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rokoko  
#3 Posted : Monday, March 9, 2015 3:10:27 PM(UTC)
rokoko

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hi,

you could try a workaround: construct two "pins" (the larger and the smaller) with desired dimensions as two solids. then you can subtract the pins from your block. see figure and example file
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viacad pro 10 powerpackpro, viacad pro 9 german, mac
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DanL  
#4 Posted : Monday, March 9, 2015 6:01:23 PM(UTC)
DanL

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Thanks, Tim and rokoko. The flat spot between the two holes Tim shows will be a problem, so I'll try rokokos solution.

Dan
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