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  • are you rolling those rings? and if so have you got any tips on making them perfectly round? I made 3 for this light fitting I was making but couldn't get them perfect, they're a bit egg shaped

  • What are you using to roll them? Black flatbar isn’t very consistent but it should work pretty well with a proper ring roller. I got a firm in the midlands to do these though. Didn’t fancy doing 130 rings by hand. They work to +/-2mm with CNC machines.

  • just using a ring roller I bought off eBay for about £100. that might be where I went wrong...

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