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Hi Richard, aah this question takes me back to my days as a technology teacher! assuming you can bodge and have no money - windscreen wiper motors from a scrappy will probably do it. They come in different sizes, lorry or bus ones are very robust. While you are about it, the pumps that squirt water onto your windscreen can be adapted to various uses ... Cheers, Richard Richard Scrase Head of Online Communication Understanding Animal Research 30 Farringdon Lane London EC1R 3AW Tel 020 3675 1230 Fax 0203411 7808 ________________________________ From: psci-com: on public engagement with science [[log in to unmask]] on behalf of Richard Robinson [[log in to unmask]] Sent: 11 May 2016 11:16 To: [log in to unmask] Subject: [PSCI-COM] going round in circles Hello Geniuses I've got to make a spinny wheel illusion, and do it so it can withstand the thousand shocks of a Summer festival. Where should I go for an electric motor to drive it? I'm no expert. I've tried RS components, but I don't know how to talk about torque. It needs to be robust, and able to spin a bike wheel or object of similar weight at about 60 rpm; that's all. Richard Robinson Brighton Science Festival <http://www.brightonscience.com/> ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ ********************************************************************** psci-com how-to: Once subscribed, send emails for the list to [log in to unmask]<mailto:[log in to unmask]>. If not subscribed, either subscribe here https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=psci-com or send reqests for items to be posted on your behalf to [log in to unmask]<mailto:[log in to unmask]> To unsubscribe (or silence messages while away) send an email (any subject) to [log in to unmask]<mailto:[log in to unmask]> with one of the following messages (ignoring text in brackets) • signoff psci-com (to leave the list) • set psci-com nomail (to stop receiving messages while on holiday) • set psci-com mail (to resume getting messages) Contact list owner at [log in to unmask]<mailto:[log in to unmask]> Small print and JISCMail acceptable use policy https://sites.google.com/site/pscicomjiscmail/the-small-print ********************************************************************** ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ ********************************************************************** psci-com how-to: Once subscribed, send emails for the list to [log in to unmask] If not subscribed, either subscribe here https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=psci-com or send reqests for items to be posted on your behalf to [log in to unmask] To unsubscribe (or silence messages while away) send an email (any subject) to [log in to unmask] with one of the following messages (ignoring text in brackets) • signoff psci-com (to leave the list) • set psci-com nomail (to stop receiving messages while on holiday) • set psci-com mail (to resume getting messages) Contact list owner at [log in to unmask] Small print and JISCMail acceptable use policy https://sites.google.com/site/pscicomjiscmail/the-small-print **********************************************************************