ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

Sheri

We have done skelton on a bike before and had similiar issues.  The skelton 
has to be held together with an armiture of steel rods attached to ball 
bearings at each of the joints.  The visitor bike needs to have its motion 
limited to keep visitiors from peddling too fast or stopping to quickly.  We 
have used thrust bearings in the peddal shaft to limit the visitiors 
peddaling motion.

Good Luck

David A Krueger
Design Craftsmen
989-496-3220

>From: Sheri Cifaldi SET ISEN-ASTC-L Digest              
><[log in to unmask]>
>Reply-To: Informal Science Education Network              
><[log in to unmask]>
>To: [log in to unmask]
>Subject: skeleton recommendations for "ride a bike with..." activity
>Date: Mon, 4 Dec 2006 10:55:14 -0500
>
>ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>Incorporated, a worldwide network of science museums and related 
>institutions.
>*****************************************************************************
>
>Hello all,
>
>We just opened a new exhibit (Healthvyille) about children's health and the
>choices they make to keep themselves healthy.
>
>One of the activities is the old "have a skeleton enclosed in a box ride
>along with you". The fabricator we worked with purchased an American 3B
>Scientific skeleton (Model: The Functional Skeleton) and was told by the
>manufacturer that this is the skeleton that many other science centers have
>for similar activities.
>
>In the past 2 weeks, we have opened up the case about 4 times to fix the
>skeleton. Various parts have come apart because of the movement. We have
>reinforced parts of the skeleton and those pieces aren't coming apart.
>
>What other makes/models of skeletons are other science centers with similar
>activities using. Do you find that you can use them right off the shelf or
>do you need to reinforce them?
>
>Many thanks in advance,
>Sheri
>____________________________________
>Sheri Cifaldi
>Director of Exhibits
>Stepping Stones Museum for Children
>Mathews Park, 303 West Avenue
>Norwalk, Connecticut 06850
>203 899 0606, ext 234
>
>***********************************************************************
>More information about the Informal Science Education Network and the
>Association of Science-Technology Centers may be found at 
>http://www.astc.org.
>To remove your e-mail address from the ISEN-ASTC-L list, send the
>message  SIGNOFF ISEN-ASTC-L in the BODY of a message to
>[log in to unmask]

***********************************************************************
More information about the Informal Science Education Network and the
Association of Science-Technology Centers may be found at http://www.astc.org.
To remove your e-mail address from the ISEN-ASTC-L list, send the
message  SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]