Bolt Clearance Hole - Assembly

[Dale_Rosema]

Creo 9.0.7.0

***Disclaimer - (I know) do not put features in an assembly***

But, ...

I am putting a bolt clearance hole in a 2" square tube assembly. I thought that I used to be able to specify a depth of the clearance hole, but now my only options are (1) through all and (2) to a reference. Since it is a tube, I do not want to go all the way through both walls.

Did something change or am I missing something?

[tbraxton]

If you change the hole type to simple you will get the specify depth option. This behavior is the same in Creo 7 and Creo 9 on my machine.

[Dale_Rosema]

I noticed that too.

But why not with a clearance hole? Oversight?

[tbraxton]

It seems odd that it is missing for standard holes.  It would be a rare occurrence for me to use an assembly feature to add the hole, so I have no history for this scenario. If no one offers an explanation here I would open a call with support on this one.

[BenLoosli]

Use the 'to reference' and select the inner wall of the tube. If your wall thickness changes, the hole will update to the "thru" depth. No need to determine the depth. Being a clearance hole, I would guess it is going through and not being a blind hole.

[Dale_Rosema]

That too is a valid option.

I seldom use "To Reference" but I did on this one, but the refence I used was the center planes on which the tube was built.

I was just surprised that I could pick a depth so I didn't know if something changed.

[Patriot_1776]

Now remember, we ARE talking about a company (PTC) that doesn't know the difference between a "COARSE" thread (i.e. ISO or UNC) and a "COURSE" thread...🤣🤣🤣

[Patriot_1776]

The "COURSE" (LOL) thread issue has been a mistake for a while now, I THINK (not 100% sure) from back in Creo 4, and is probably even older than that.  So, any bets as to how many more years it will take PTC to fix it?  Anyone?  Bueller?  Should we get a pool going?🤣

[Dale_Rosema]

I've got a sneakin' suspicion.....

... maybe it has taken it's course (or was that coarse?).

[aputman]

Since it is a clearance hole, I'm trying to think of a situation where you would need to specify a depth.  If you are going to tap the opposite side of the tube, you can create a tapped hole and add a top clearance and specify the depth of the clearance.

[Dale_Rosema]

Just a simple clearance for bolt coming through a washer and attaching to a custom loose nut on this inside.

Thanks,

[aputman]

Right, so there is no reason to enter a specific depth.  Using the inside surface as a reference would be the proper way to do this.

[Patriot_1776]

No, in THIS case (square tube) that would work, in others, no.

[Patriot_1776]

Plenty of reasons to specify a depth on a clearance hole:  You are using a pin to locate 2 parts relative to each other and you cannot drill thru because there is liquid, pressure, or something on the other side (industrial washdowns, weather, etc.) that you cannot have coming thru.

[aputman]

Then that's just a "simple hole", not a "standard hole".  A standard hole, which includes clearance holes, is for threaded fasteners.