Skip to main content
ptc-38891751-Visitor
1-Visitor
April 3, 2012
Solved

Stupid Noob Question of the day - Can I create predefined dimensions for bolts - screws - holes?

  • April 3, 2012
  • 8 replies
  • 5174 views

I'm in a bit of a quandry over the hole wizard. I've just started my 1st job as a designer and already I've got questions - go figure! When you click on the hole wizard you can choose the size of the tapped hole for a bolt or screw, but can you predefine the dimensions associated with that partiular hole size? Case and point, my company has a standard for 1/4-20 screws that follows this... Screw Dia: .250 Tap Dril: .201 Counter bore: .41 Dia & .26 deep or Counter sink: 82deg x .54 dia.

I'd like to go in and edit some predetermined parameters for the standard bolts & screws we use. Any help woud greatly be appreciated.

-john


This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.
Best answer by Patriot_1776

Well, the hole tables can e changed somewhat, and you can access the parameters several ways. I've attached a text file of this and some other choice strings that might help. "att_feat" pulls the listed parameters from whatever feature the dwg leader is attached to. If the leader fails, the note fails and you must delete it.

8 replies

Patriot_1776
Patriot_177622-Sapphire IIAnswer
22-Sapphire II
April 3, 2012

Well, the hole tables can e changed somewhat, and you can access the parameters several ways. I've attached a text file of this and some other choice strings that might help. "att_feat" pulls the listed parameters from whatever feature the dwg leader is attached to. If the leader fails, the note fails and you must delete it.

KrisR1-Visitor
1-Visitor
April 3, 2012

Keep in mind that the standards that Pro E/Creo uses are the industry standards - such as from Machinery's Handbook, etc.

To change them isn't a good thing, unless your company is deviating from them. I didn't look up the standard for 1/4-20, so I'm not sure if what you posted is a deviation.

Patriot_1776
Patriot_177622-Sapphire II
22-Sapphire II
April 4, 2012

.201 dia IS standard for a .250-20 BUT, different sizes are going to be used for threads depending on whether you want 65% or 75% thread etc. You CAN change these tables to a point in Pro/E to get what you want. A lot of times, I use a cut and a cosmetic thread instead of the hole command so I can get exactly what I want.

ptc-38891751-VisitorAuthor
1-Visitor
April 6, 2012

Kris & Frank,

Thaks very much for the help. You definitly got me started down the correct path!

    Patriot_1776
    Patriot_177622-Sapphire II
    22-Sapphire II
    April 10, 2012

    Did that text file help in any way?

    BrianMartin13-Aquamarine
    13-Aquamarine
    April 13, 2012

    Yes Frank...

    Thanks for your cheat sheet! I knew most of these things just from experience but it's good that someone wrote down this information in a file. You should turn this into a fancy document and post it.

    And for what it's worth... I also do not use the standard holes. I find the predefined holes too restrictive and I like the flexibility of defining my own hole and threads separately. For working in various materials the hole tables aren't complete enough. There's also a few additional annoyances with them.

    For example... let's say you create a standard hole and then assemble hardware to it. Later you realize you needed a larger bolt so you change the standard hole to a large size. Immediately your hardware fails. When you redefine a standard hole to a new size it's effectively removed and a new one put in it's place. You lose the references to the hole... and your previously assembled hardware fails. If I use my own hole... I can resize it and change it's thread profile without losing my hardware.

    They never seem to tell you about that one... but it's been like that since WF2. Maybe I should try again in Creo?

    Terms & ConditionsAccessibility statement