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Ask the customer.
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JParis 221
11 hours ago, Matthew Hajicek™ - Conventus said:Ask the customer.
Yup because I have seen some want to depth to the drill point and yet others want the depth to the full diameter..
Someone will have to clarify customer "intent"
Leon82 217
There is usually a workmanship spec that goes along with it.
If the print has a depth I would make it the full diameter to the depth.
gcode 10,050
I'm guessing that 118 ° is the default drill point setting in your customer's CAD system and they haven't put a second's more thought
into it.
The big aerospace firms have a spec for undefined drill points, smaller firms, not so much.
This can be a real problem if you want to use 135° cobalt or 140° carbide drills
Your safest best is to call and ask.
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Hello,
We are making a component which is defined by a reduced dimension drawing. One of the features that is explicitly stated on the drawing is a ø1.0 ±.1, ↓ .3 ±.1. As modeled, the hole is ø1.0 ↓ .3 with a 118° point extending past the full diameter. Our quality department is interpreting the inspection requirement as being the 118° angle needing to conform to the "profile of .06 unless otherwise specified" tolerance that applies to all un-dimensioned features. The machine shop interprets the hole callout (not model) as fully defining the feature, including the drill point of what would otherwise be an optional angle.
Thoughts?
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