ML10 Dewhurst / Brook Crompton

[Martin Johnson 1]

On Martin Johnson 1 Said:

Clive and Southern Chap confuse the NVR with a primarily safety device.  If your lathe starts up again at some indeterminate time after a power cut and winds the saddle into the headstock that is expensive but most unlikely to be life threatening.

My over arching point is that the selection of safety devices flows from a risk assessment.  That is actually the basis of current legislation.  You will find very few safety docments that lay down rigid requirememts for safe conduct in the non commercial hobby which we are discussing.

If you feel E stops, NVRs, interlocked guards etc are right for you then crack on with my blessing.  But don’t try and dress it up as compulsory for everyone in the hobby.

Martin

I don’t remember mentioning legislation, risk assessments, or fitting an NVR being mandatory for a hobbyist.

On the other hand, I do remember suggesting it would be cheap and easy to fit an NVR switch and that I could see no good reason for not fitting one if one had the opportunity.

If you wish not to fit one to your lathe, that is entirely your business.  Your workshop, your rules.

Oh, and whilst many a workshop accident is entirely foreseeable, and thus may be assumed to be within the set of the ‘likely’, enough accidents have happened that seemed ‘unlikely’ to the unfortunate operator, to suggest that it is sensible to take a more cautious approach.

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