Drawing a Gear

[Michael Hamstra]

I have trying unsuccessfully to draw a gear...I have searched MM technotes
and found one doc (cog_teeth), however the process did not work as described
(tech-note was from August 2001, obviously not Freehand MX referenced).

[url]http://www.macromedia.com/support/freehand/ts/documents/cog_teeth.htm[/url]
(specifically steps 9 & 10 did go as anticipated).

Are there any suggestions on how to perform this process, tutorials,
etc.(Freehand MX/Windows)??

Thank you in advance!

Michael Hamstra

[Elliott-Fay webforumsuser@macromedia.com]

If you want to draw a profile of one.

1. Just draw a line and rotate in half the distance of the tooth width (If your gear has 10 teeth each tooth would be 36º wide. You need to rotate it 18º)

2. The rotate again this time using the "copy" feature with one copy and set to rotate -18º.

3. Now draw your tooth on top the two lines and clone and rotate 180º and place at bottom.

4. Join and close paths.

5. Rotate with copies (As above example rotate 36º with 9 copies.)

6. Union it all and add details.



Mark
Sawtooth G4 400 MHz
384 MB RAM

[Michael Hamstra]

Thank you for your feedback Mark.

Michael

"Elliott-Fay" <webforumsuser@macromedia.com> wrote in message
news:bguf2o$2i$1@forums.macromedia.com...

> If you want to draw a profile of one.
>
> 1. Just draw a line and rotate in half the distance of the tooth width (If

your gear has 10 teeth each tooth would be 36º wide. You need to rotate it
18º)

>
> 2. The rotate again this time using the "copy" feature with one copy and

set to rotate -18º.

>
> 3. Now draw your tooth on top the two lines and clone and rotate 180º and

place at bottom.

>
> 4. Join and close paths.
>
> 5. Rotate with copies (As above example rotate 36º with 9 copies.)
>
> 6. Union it all and add details.
>
>
>
> Mark
> Sawtooth G4 400 MHz
> 384 MB RAM

[Michael Hamstra]

Thank you very much Judy.

Michael

"Judy Arndt" <jarndt@shawbiz.ca> wrote in message
news:BB588B4E.5302%jarndt@shawbiz.ca...

> Michael Hamstra wrote:
>

> > I have trying unsuccessfully to draw a gear...I have searched MM

technotes

> > and found one doc (cog_teeth), however the process did not work as

described

> > (tech-note was from August 2001, obviously not Freehand MX referenced).

>
> I would use the Mirror Tool to create the cogs -- no math required.
>
> 1. Set vertical and horizontal guides to center all operations. Draw outer
> circle. (Option-Shift-Drag with ellipse tool from intersection of guides.)
> 2. Draw one cog overlapping the edge of circle.
> 3. Set Mirror Tool to Multiple/Rotate and number of cogs and click on

center

> of circle.
> 4. Select cogs and outer circle. Xtras > Path Operations > Union.
> 5. Draw inner circle centered on guides. Select it and cogged edge. Join.
> 6. Use the Extrude tool to give the gear depth.
>
> Hope this is clear.
>
> Judy Arndt
>

[James E. Talmage]

1) Polygon tool. DoubleClick the Polygon Tool. Set it to Star and set
number of sides to the number of teeth you want on the gear.
OptionClickDrag the star.

2) Ellipse tool. OptionClickDrag from the approximate center of the star
to a little beyond the inner points of the star (the diameter which you
want to be the landings of the teeth).

4) Ellipse tool. OptionClickDrag from the approximate center of the star
to a little beyond the diameter of the first circle (the diameter which
you want to be the outer flats of the teeth).

5) Select all three and DoubleClick the center of the Align Palette's
diagram to align all the objects at their centers.

6) Select the star and the inner circle. Modify>AlterPath>Union.

7) ShiftClick to add the remaining circle to the selection. Modify>AlterPath>Intersect.

8) Optional: If you want the landings and flats to be flat, not curved,
just drag a selection marquee around the entire shape to select all its
points. Then click the retract buttons of the Inspector.

(Assumes FH 9. Minor differences may exist in later versions.)

JET

[david gangwisch]

JET's steps are very similar to the ones I would suggest. My only minor
alterations would be to draw the concentric circles for the outer and inner
diameters of the teeth first so I can use them for reference when drawing
the Polygon (his step 1). If you do this you may also need to alter the
front to back stacking order of the objects (Modify>Arrange>...) before
performing some boolean operations; this is critical with Punch and Crop.

Also, in FHMX you can alter the number of points on the Poly and the
accuteness of the star after creation. If you hold down SHIFT while using
the sub-select tool, you can adjust the "acuteness" of the Poly in the
workspace without accidentally moving the points around the circumference.

David W Gangwisch


"James E. Talmage" <JET@IllustrationETC.com> wrote in message
news:3F33CEAB.E62476FF@IllustrationETC.com...

> 1) Polygon tool. DoubleClick the Polygon Tool. Set it to Star and set
> number of sides to the number of teeth you want on the gear.
> OptionClickDrag the star.
>
> 2) Ellipse tool. OptionClickDrag from the approximate center of the star
> to a little beyond the inner points of the star (the diameter which you
> want to be the landings of the teeth).
>
> 4) Ellipse tool. OptionClickDrag from the approximate center of the star
> to a little beyond the diameter of the first circle (the diameter which
> you want to be the outer flats of the teeth).
>
> 5) Select all three and DoubleClick the center of the Align Palette's
> diagram to align all the objects at their centers.
>
> 6) Select the star and the inner circle. Modify>AlterPath>Union.
>
> 7) ShiftClick to add the remaining circle to the selection.

Modify>AlterPath>Intersect.

>
> 8) Optional: If you want the landings and flats to be flat, not curved,
> just drag a selection marquee around the entire shape to select all its
> points. Then click the retract buttons of the Inspector.
>
> (Assumes FH 9. Minor differences may exist in later versions.)
>
> JET

[veeall webforumsuser@macromedia.com]

you can draw a circle, clone it, add points to clone with xtra operations tool several times, then xtra operations-fractalize, now add points one time and fractalize it again. and here it is, almost!

you may want to resize the first circle so that only teeth would remain visible and union it with gearlike object, then select inner points of the gear with lasso tool and scale them with transform panel by 90 %.


Marek
i had some problems understanding the word ´gear´ because of my weaker english but maybe its close enough.