From: =?iso-8859-1?Q?Mathieu_Ren=E9?= <creaturiste-AT-primus.ca>
To: <puptcrit-AT-puptcrit.org>
Date: Mon, 18 Aug 2008 02:07:58 -0400
Subject: [Puptcrit] Great source of bouncy springs


Hi all.
I recently dismantled two of those opaque window blinds that re-rolls by 
themselves, thanks to an inner spring-loaded mechanism. Today, I noticed how 
wobbly these springs were sideways, and how expressive their movement are. I 
temporarily attached a drawer knob at one end (to form an eye), then 
inserted a dowel in the spring, trying at various depth. changing how deep 
the dowel goes into it, and how heavy the eye, the height tendency and the 
"zero position" vary a lot.

I never saw any spring of this type sold by itself, but at least I know I 
see a window blind in the trash a few times a year.

_______________________________________________
List address: puptcrit-AT-puptcrit.org
Admin interface: http://lists.puptcrit.org/mailman/listinfo/puptcrit
Archives: http://www.driftline.org