Subject: Re: slinky!
From: Joe Angell <[email-masked]>
To: Mike Harlock <[email-masked]>
Cc: [email-masked]
Date: Sun, 29 Oct 1995 22:16:06 -0500 (EST)

> I'm looking for a slinky (tm) (sp) toy object...or any ideas on how
> to build one (with rail extrude?)
> thanks..

OK.... try this...

Make a disc.  Use the following settings (Numeric options)

	Sides:		6
	Segments:	1
	Bottom:		0
	Top:		0
	Axis:		Z
	
	Center:  X	25
		 Y	 0
		 Z	 0

	Radius:  X	 5
		 Y	 5
		 Z	 0

	Units: cm

Then Lathe it with (Numeric)

	Start Angle	0
	End Angle	3600
	Sides		160
	Offset		1

	Axis		Y
	Center		0,0,0

	Units:	Meters

That gives you more of a thick spring than a slinky, but you get the 
idea.  Since Slinky's are so thing, you may want to try using a 1-pt. 
polygon instead of the disc (which will give you a slinky made of 2-point 
polys).

You can change the lenght of the slinky by increasing the Offset, and 
changing the End Angle will determine the # of spirals in the spring.  
You will likly want to increase the Sides if you increase the End Angel, 
though.

Hope this helps...

-- Joe
--
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