Holes on model

[Anonymous]

I have to make holes on model for that I wish to use HOLE tool. I made it but have many doubts. Dimension of the hole is given I need help to feed dimensions in hole dialog box. Particularly I don't have clue how to use depth 0.160

 

[WHolzwarth]

Use 90° angle instead of 45° in both cases. And compare dimension 2.100 with your input in Sketch6

Walter

[Anonymous]

There is slope between outer diameter and inner diameter which is given in the hole dimension. I couldn’t understand your 90 degree suggestion.

I have seen you had align the UCS as you want. We use 3 point option in AutoCAD please tell me the similar tool in Inventor.

[swalton]

Inventor assigns a local coordinate system when you create a sketch.  You can edit it after you exit the sketch.  RMB on the sketch in the browser and select "Edit Coordinate System". 

If you add a feature above a sketch in the model tree that disrupts the edges and vertex that Inventor picked for the sketch, you will have to use this command to repair the damage.

I don't normally use a sketch to locate a hole feature.  I use a sketch when I need to define the hole location with features/edges that are hard to grab with the hole tools. 

I also like to pattern hole features so I can place hardware with the component pattern tool in an assembly.  That way the hardware location and count is dependant on the pattern in the part.

[JDMather · Accepted solution]

This face is wrong.

[JDMather · Accepted solution]

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@Anonymous wrote:
 I couldn’t understand your 90 degree suggestion..

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[Anonymous]

Yes I accept that. Thank you for pinpointing error.

[JDMather]

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@Anonymous wrote:
Yes I accept that. Thank you for pinpointing error.

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But do you know how to easily fix the error?

[Anonymous]

Thank for show me exact angle position. How to represent 0.160 in the dialog box.

[Anonymous]

What I know is going to Edit Sketch and fix the error. No idea about other methods.

[JDMather]

You should note from my image that the dimension is (.160), therefore it is a reference dimension (Driven Dimension) and not needed.

Whoever wrote that book does not know how do dimension a CounterSink Hole.  That Depth value is redundant (and nearly impossible to measure with any accuracy out on the shop floor.

[Anonymous]

This text book is 2010 edition. Every day things are changing therefore there is a room for excuse.

[JDMather]

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@Anonymous wrote:

This text book is 2010 edition. Every day things are changing therefore there is a room for excuse.

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I have been doing this stuff for more than 20yrs.  The standard was the same back in the last century when I was on the drawing board with pencil and paper.  The author has it wrong.  It is redundant, not needed.

If for some reason the author (or designer) wanted to include it, the dimension should be shown as Reference within parenthesis (.160).

[Anonymous]

In my understanding as 0.160 is a Driven Dimension of the hole means that this countersunk depth is determine by the depth of the hole only. What is the depth of the hole? As the hole is an oblique one what depth can be given to dialog box.

[JDMather · Accepted solution]

Instead of entering a depth for the hole - I would set it to Terminate on this face (To).

[Anonymous]

You can notice when "To" is selected OK button has become grey, no way to accept the selection. What is reason? 

I wish to know what is ment by "To".

[swalton · Accepted solution]

It means that Inventor is waiting for you to select the terminating geometry for the hole feature.  Select a planer surface in the graphics window to control the depth of the hole. Once you have made your selection, the OK button should become functional.

[Anonymous]

Thanks for your explanation.

[Anonymous]

Thanks for your help.

[SBix26]

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@JDMather wrote:

You should note from my image that the dimension is (.160), therefore it is a reference dimension (Driven Dimension) and not needed.

Whoever wrote that book does not know how to dimension a CounterSink Hole.  That Depth value is redundant (and nearly impossible to measure with any accuracy out on the shop floor.

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While I agree wholeheartedly that dimensioning countersinks that way is an abomination, the depth value is not redundant, because no angle is specified.  When I tried this model for myself, I had a big nasty equation for the angle which made use of the depth: = 2 ul * atan((CSinkDia - HoleDia) / 2 ul / .160 in)), if I recall correctly.

Sam B

Inventor Professional 2016 R3 SP1 Update 1
Vault Basic 2016 SP1
Windows 7 Enterprise 64-bit, SP1