Quote Originally Posted by devmonkey View Post
I made the large timing pulley I was proposing today, it is a 157 tooth HTD 8M (20mm belt) for a project, pulley is ~400mm diameter. It was made from 10mm SBRP with 3 laminations at the rim. Turned out fantastic. I used screwfix cyano to laminate, this makes a very strong joint which you cannot get apart. It will never the less be reinforced with a ring of M5 bolts.

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What a monster? what's it for may I ask?