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Thinking aloud... reduce diameter of glass filter

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MW27/08/2016 13:31:17
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I think it's doable but the finish could be rather poor, and you have to ask yourself if you want to risk this damage to the filter.

Michael W

Neil Wyatt27/08/2016 16:15:43
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Posted by KEITH BEAUMONT on 27/08/2016 11:21:45:

Hi Neil,

I had same requirement with a filter and took it to my local Specsavers and asked if they would reduce by one mm. They did it same day ,cost £5.00

Thanks Keith!

Neil

Neil Wyatt27/08/2016 16:17:42
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Posted by peak4 on 27/08/2016 09:24:19:

Perhaps a visit to Poundland before you start might be a good idea too.

They sell phone/tablet screen protectors, which cut to a couple of circles might protect both sides of your filter from scratches due to the glass/diamond dust.

Good thinking.

Neil Wyatt27/08/2016 16:18:00
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Posted by Michael Walters on 27/08/2016 13:31:17:

I think it's doable but the finish could be rather poor, and you have to ask yourself if you want to risk this damage to the filter.

Michael W

I have little to lose!

Neil Wyatt27/08/2016 16:18:53
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Posted by roy entwistle on 27/08/2016 08:47:48:

Neil Are you sure it's glass ? A lot of filters are hard resin

Feels heavy for resin, I think its glass. It's by Leech so it must be fairly old, they don't seem to have a modern website.

N.

Neil Wyatt27/08/2016 16:20:17
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Posted by Vic on 27/08/2016 11:06:57:

I went to look at a job many years ago and one of the things they use to make were glass discs for part of their products. They cut the glass into squares first then "knibbled" them into (very) rough rounds. They were then stacked into a column using bees wax to stick them together. The columns of glass where then mounted between centres on the lathe and turned true. Heating the turned column melted the wax separating it into individual discs. I've no idea what type of tool they use though.

I have some of my own beeswax I have been minding for many years.

Nick Hulme29/08/2016 14:05:58
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Posted by Neil Wyatt on 27/08/2016 16:20:17:I have some of my own beeswax I have been minding for many years.

Nice One!

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