How can I create a disc with a random amount of holes on a boltcircle diameter?

I need a way to create a disc that has a random amount of holes on a
BCD. I can control the disc diameter, disc thickness, hole diameter,
and bolt circle diameter using equations and design tables. I cannot
find a way to use a design table to control the amount of holes on the
bolt circle. Can this be done or am I stuck in an AutoCad way of
thinking?

Thanks in advance

 

See last item:

[
From the March 1993 issue of MAT 007 I News, the newsletter of Wreckreation Math
at the University of Toronto.

Compliments to Prof P.G. Rooney of the University of Toronto Math Department.


The Jacobians and their Struggle for Independance
A Ten-Day Diet to Improve Indeterminate Forms
Dental Care for Decaying Exponentials
Cheaper by the Googal
How to Discipline Improper Integrals
1001 Best Loved Double Integrals
A Gardeners Handbook for the Extraction of Roots
The Torus and i
The Vaticans View of Transfinite Cardinals
A Short Table of Even Primes (Abridged)
100 Tasty Fillings for Empty Sets
Life Begins at e^ix
The AFL-CIO -- An Ininite Union of Dense Sets
How to Keep Condensation Points from Dripping into Empty Sets
Marketing of Scalar Products
A Child's Garden of Tchebycheff Polynomials
How i Solved my Imaginary Problems
A Treasury of Matrices -- Upright and Inverted
My Neighbourhood is Open -- or, A study in Integration
Improving Lipschitz Conditions in the Slums of New York
The Decline and Fall of e^-x
How to Prevent Corrosion on Riemann Surfaces
The Peano Postulates Transcribed for Violin and Cello
First Aid for Dedekind Cuts
A Collection of Happy Endings for Incomplete Beta Functions
The Laplace Transform -- Before and After
Why the Base 10 -- or, If we had e Fingers
A One Line Proof of Fermat's Last Theorem
Was George Cantor's Mind Well-Ordered?
The True Story Behind "Two Plus Two Equals Four"
Federal Aid for Retarded Potentials
One Thousand Random Numbers (in Order)
]

 

Did you know that almost all random numbers (integers) have quite large
absolute values?

 

BASIC & most other computer languages have a RANDOM "function".
Not that the results ever seem to be truely random (use system
clock date/time as a seed <g>).
OTOH You'd usually get a different (random) number of holes each time ....

 

By "random amount of...", do you mean "arbitrary number of..."?


Best regards,
Spehro Pefhany

 

Jeff


Go and ask this at www.SolidMentor.com so you can get a real answer
instead of the no help comments from here.

Ben

 

He really needs a better qualified question to begin with IMHO.
Would you want a random number of holes in your part each
time it rebuids?

 

Cliff

There is a random number generator in excel and you can give it a upper
and lower limit.... Last I checked you can use excel to drive dimensions
and functions in SW.... THIS CAN BE DONE!

Better qualified question? How about a better qualified answer?

Ben

 

Besides if you read the question and think, maybe just maybe, he is
saying I want a specific number of holes but I need to change that
value, he might have substituted 'random' in the question assuming you
could think and put this together yourself...

Ben

 

Jeff,
I tried to respond last night but it seems not to have posted.
The information you're missing is a way to reference the value for the
number of holes in a design table or equation.
If you created a hole with a cut-extrude, cut-revolve, or hole wizard
feature first, then used a circular feature pattern, this is easy.
Double click on the circular pattern in the tree, so that the
dimensions appear in the main window. Near the axis you used to
create the pattern should be a dimension showing the number of
instances, with no leader or dim lines. Right click on it and the
name of the dimension will show at the top of the context menu; you
can also click on properties to see the name if it's too long to fit.
In my test, that dimension was D1@(circularpattern).
If the pattern is in the sketch rather than the feature, I'm not sure
what to tell you. There doesn't seem to be an obvious way to obtain
that number. Then again, if you're using sketch patterns, you may
want to consider feature patterns instead as there are also other
advantages: http://mysite.verizon.net/mjlombard/Patterns.html
(hijacked from its frame at http://mysite.verizon.net/mjlombard/)
Hope this helps more than the other bickering...
-Mark

 

Jeff

Seeing as there is little or no help here I posted your question at my
forum.

http://solidmentor.com/modules/newbb/viewtopic.php?topic_id=153&start=0#forumpost763

I am pretty sure you will get a answer and not some useless gibberish

Ben

 

He clearly stated "random" which has a specific meaning.
You just have a "maybe" & a wild guess.

Perhaps he will get back to us <G>.

 

Ben,

In your opinion Mark Treadwell's response is little or no help?

Tom

 

Tom, Mark

I did not mean Mark's responce was little help the post was not in my
reader when I made mine. I appologize to you Mark as the comment was
made in haste.

Anyhow there is one possiblility answer at www.SolidMentor.com at
http://solidmentor.com/modules/newbb/viewtopic.php?topic_id=153&start=0#forumpost763

Ben

 

Cliff

Knowing how people talk and that the average person makes verbal
mistakes I would be willing to bet that Jeff meant "arbitrary" instead
of "random".

Besides even if he did not you just gave a lesson in the definition of
the word not anything helpful in his problem. Your help was like someone
asking for a driving lesson and you giving him a lecture in how to put a
saddle on a horse. Not very productive now is it?

Ben

 

Happens, no worries. I just wasn't sure if you were discounting Mark's
input.

Following Mark's directions the full dimension name will look like
this D1@CirPattern1.

Tom

 

None taken - happens all the time when it takes any time to compose a
response. I just hope Jeff didn't give up too soon on finding an
answer here.

 

I hope he reports back and lets us know his progress.

This is what came to mind when I first read his post:

http://www.thermometricscorp.com/flange1501.html

Driven from a table, where the # of holes, hole diameter & BHC are
variables.

Tom

 

It has been brought to my attention that I may have come off as pompous
and arrogant saying that 'real' answers can be found at SolidMentor and
insinuating that here you cannot find answers. I did not mean that at
all and apologize to those that took offense.

I was just tired of seeing someone get a ton of answers not related to
his problem and offered another possible place to post his question. I
still see value here at CCSW and come here to view and very occasionally
try and help out. I believe the more resources you exploit the better
your answer to a problem can be and using CCSW is encouraged by me and
the quality of answers is just as good here. Just you have to wade
through a bunch of..... well I am sure you know what

Ben
www.SolidMentor.com

 

Cliff = 5 posts to date.
Ben = 7

Yep.