Inventor General Discussion

Inventor General Discussion

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Contributor
richmiku
Posts: 24
Registered: ‎09-06-2005
Message 1 of 9 (789 Views)

Bolt heads not flush

789 Views, 8 Replies
03-27-2007 06:05 AM
When inserting a bolt connection requiring a coutersink or counter bore, the bolt is not placed flush and is left standing.

Is there a setting somewhere that corrects this problem?
*Russ
Message 2 of 9 (789 Views)

Re: Bolt heads not flush

03-27-2007 08:52 AM in reply to: richmiku
I only use CC to make a custom screw/bolt whatever, give it a name that
makes sense to all where you work, save it in a folder like "Hardware". Then
when I need to use a screw, place in assembly and I just use the "Insert"
assembly constraint. This is much faster for what I'm doing. This also
avoids all the "pack and go" hassles. I don't even use pack and go anymore
if I can avoid BC and CC, I can just save the folder and move it where ever
I want.

Russ Tanner

wrote in message news:5531852@discussion.autodesk.com...
When inserting a bolt connection requiring a coutersink or counter bore, the
bolt is not placed flush and is left standing.

Is there a setting somewhere that corrects this problem?
*RobV
Message 3 of 9 (789 Views)

Re: Bolt heads not flush

03-27-2007 09:39 AM in reply to: richmiku
This may be due to the fact that the bolt/screw you are using is essentially
a cone with a disc on it. It may require a small counterbore to account for
the "disc" at the top or you may be able to increase the countersink angle
to accomodate for it.

--
Rob
Inventor 11 SP2 Build 344a
Vault 5.0 Build 11.1.145.0


wrote in message news:5531852@discussion.autodesk.com...
When inserting a bolt connection requiring a coutersink or counter bore, the
bolt is not placed flush and is left standing.

Is there a setting somewhere that corrects this problem?
*Duncan Anderson
Message 4 of 9 (789 Views)

Re: Bolt heads not flush

03-28-2007 07:08 AM in reply to: richmiku
Most countersunk heads are finished with a chamfer that is cylindrical to the
thread.

Increase the countersink diameter or use another drill that is the diameter of the
of the head, sharpened to 90 deg and drills down by the depth required.


--
Duncan
"Humour ... is one man shouting gibberish in the face of authority, and proving by
fabricated insanity that nothing could be as mad as what passes for ordinary
living."
(Terence 'Spike' Milligan K.B.E., 1918-2002)
www.autodesk.co.uk/inventorjobs
http://support.microsoft.com/default.aspx/kb/555375


wrote in message news:5531852@discussion.autodesk.com...
When inserting a bolt connection requiring a coutersink or counter bore, the bolt is
not placed flush and is left standing.

Is there a setting somewhere that corrects this problem?
*Lukas Polansky \(Autodesk\)
Message 5 of 9 (789 Views)

Re: Bolt heads not flush

04-02-2007 04:06 AM in reply to: richmiku
Hello,

would it be possible to send me the assembly with the problematic Bolted
Connection inserted? We will look at it.

Thanks and regards,
- Lukas

--

Lukas Polansky
DAcc QA Engineer
Autodesk


wrote in message news:5531852@discussion.autodesk.com...
When inserting a bolt connection requiring a coutersink or counter bore, the
bolt is not placed flush and is left standing.

Is there a setting somewhere that corrects this problem?
Contributor
jwilliams
Posts: 20
Registered: ‎11-19-2007
Message 6 of 9 (789 Views)

Re: Bolt heads not flush

01-14-2008 09:35 AM in reply to: richmiku
Lukas,

Was this issue ever resolved? I am experiecing the same issue. A countersunk hole was first added to the part, the tried to use bolted connection (hole method) to place fasteners. Any help?
*Lukas Polansky \(Autodesk\)
Message 7 of 9 (789 Views)

Re: Bolt heads not flush

01-15-2008 02:07 AM in reply to: richmiku
Hello,

there are possible problems:
- check if angle of the head of the bolt is same as angle of the countersink
angle in the Hole dialog
- check if the Countersink Diameter in the hole dialog is same as the
diameter of the bolt head

For instance Angle of head of countersink bolt DIN 7991 is 90 degree,
countersink diameter is 20 mm. I attached a picture of the dialog of the
Coutnersink hole for countersink bolt DIN 7991 and a result.

Let me know if this helps.
Regards,
Lukas

--
Lukas Polansky
DAcc QA Engineer
Autodesk

wrote in message news:5819844@discussion.autodesk.com...
Lukas,

Was this issue ever resolved? I am experiecing the same issue. A
countersunk hole was first added to the part, the tried to use bolted
connection (hole method) to place fasteners. Any help?
Contributor
richmiku
Posts: 24
Registered: ‎09-06-2005
Message 8 of 9 (789 Views)

Re: Bolt heads not flush

06-30-2008 12:33 PM in reply to: richmiku
Folow up.

Seems the issue is with the content center data. It is incorrectly using the diameter of a machine screw (which does not have a flat surface on the top. Where as a CAP screw does.) I was hoping this would get corrected in 2009, but alas. the issue is still there. The only work around I have found was to go and change the c'sink diameter to be the theoretical sharp diameter. You will need your machinist handbook to get that number.

The problem is that if you go and make any other changes later, you need to go and do that modification as well as it always defaults to the stock dimension.

If there is a setting somewhere in the tables that could be updated, that would be nice.
Contributor
kpanik1
Posts: 11
Registered: ‎12-21-2009
Message 9 of 9 (543 Views)

Re: Bolt heads not flush

06-18-2012 05:50 AM in reply to: richmiku

Why does this problem still exist? The countersink hole diameter MUST be larger than the head of the screw in order for the screw head to be below the surface. 

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