DESIGNING-GEAR-IN-CATIA-V5.pdf
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DESIGNING GEAR IN CATIA V5
DESIGNING GEAR IN CATIA V5
Author’s Note:
This is step by step guide how to create gear using CATIA.
I'm not CATIA expert. Someone might find that CATIA doesn't
have much with TCP/IP and
FreeBSD
. I coulnd't find
much about gear design using GOOGLE or YAHOO. Since I enjoy
learing and practicing what I learn, I also enjoy sharing that
with others (often seen on overnet/edonkey: please share :)
don't be selfish. Here is step by step guide how to make spur gear
using CATIA. Note that this was inspired by document I have
found at website www.piovision.com (credits go to the unknown
designer).
But let's start. This document assumes that you have basic
CATIA experience. Also, this document assumes that you know basic spur
gear geometry.
Here is
excellent document from www.bostongear.com
in case you are not familiar. Some basic notations:
rb - base cylinder radius
r - pitch circle radius
rk - outside circle radius
rf - root radius
a - pressure angle (20deg)
m - modulo (in our example 20) m=p/3.14159 where p is circular pitch
2r=m*z
z - number of teeth (in our example 20)
When you start CATIA, go to
TOOLS->OPTIONS->Infrastructure->
Part Infrastructure
and in
Display
select
Paramteres and Relations
.
Then in
Options->General
in
Parameters and Measures
select
With value
and
With formula
in
Parameters Tree View
.
Now it is time to go to
Generative Shape Design
:
You will see something like:
Bring
Knowledge
toolbar out:
Then by clicking on arrow pointed down near table icon:
Fog and f(x)
are two most important things you will use for Gear
Design:
Now it is time to enter some basic parameters that define gear
This is done by clicking at f(x) icon:
And then when you see dialog box: Formulas: Part1
fist select Parameter type (real, length or angle) click new
Parameter of type and then edit value. You can do this until
all parameters are entered.
When you enter parameters it is time to enter some formulas.
For, r, rb, rk and rf we enter formulas by naming them and by
clicking Add Formula. Formula editor will appear:
Plik z chomika:
nike_bytom
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