Hi Dave I'd go for cast iron. The inertia of the rotating mass is useful for damping out vibrations and chattering. Regards Ron ----- Original Message ----- From: "David Everett" <deverett2003@xxxxxxxxxxx> To: <modeleng@xxxxxxxxxxxxx> Sent: Thursday, September 29, 2005 10:32 AM Subject: [modeleng] Re: Myford belt pulleys > Thanks Alan. The ali. will do just fine - I have some of that! > > Regards > > David Everett > Saudi-Arabia-On-Sea > > > > --- alan Stepney <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > >> The polyvee will run on any material, aluminium being widely used for >> industrial / domestic purposes. >> >> If you want to stick with cast iron, I believe college engineering do >> larger >> sizes and there was another supplier at Sandown (dont remember the name) >> who had some off cuts of biggish CI. >> >> Alan -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.8/114 - Release Date: 28/09/2005 MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.