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Type: Posts; User: Peter S

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  1. Jim, The arm you noticed is a tube which is...

    Jim,

    The arm you noticed is a tube which is free to rotate 360*. It is a simple welded assembly and looks like a rod or bar? is made to fit inside. There is a knob on the side which could lock...
  2. Thanks to everyone for your replies, all of them...

    Thanks to everyone for your replies, all of them helpful.

    Following Peter's comments about ratios and cams, I had another look at it today.

    The ratio looks to be 1: 1.5.

    One complete turn of...
  3. Mystery Attachment, possibly for Tool & Cutter Grinder?

    I recently won an auction which included a mixed bag of attachments for tool & cutter and other grinders. The auction was to clear the workshop of a closed company who had specialised in making and...
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