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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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30th Sep 2017, 3:05 pm | #2 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: ABS Box
Hole saw or Forstner bit, not too fast, job clamped to a fixed backing board of suitable thickness.
Lawrence. |
30th Sep 2017, 3:06 pm | #3 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,996
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Re: ABS Box
What I'd use is a "tank cutter" fitted in a drill-press.
For example http://www.thanettoolsupplies.co.uk/...147e20df28981a Run it fast, and apply *very* gentle feed pressure. I've drilled holes in Perspex/Lexan this way. |
30th Sep 2017, 4:39 pm | #4 |
Rest in Peace
Join Date: Feb 2004
Location: Hexham, Northumberland, UK.
Posts: 2,234
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Re: ABS Box
If using a handheld battery drill be sure to use the torque clutch on it. If it snags it can't half give your wrist a snap. Make sure the work is held securely, as has been said before. With ABS be sure you don't overcook it and melt the plastic with friction of the cutter. All from bitter experience.
Alan. |
30th Sep 2017, 5:22 pm | #5 |
Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,337
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Re: ABS Box
For thin plastic sheet up to 1mm, and plywood up to 4mm I have used a Swann-Morton No 11 scalpel blade clamped in the ink nib of a par of compasses. Drill a very small hole to establish the centre, and cut from opposite sides.
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30th Sep 2017, 6:25 pm | #6 |
Octode
Join Date: Dec 2010
Location: St Ives, Cambridgeshire, UK.
Posts: 1,180
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Re: ABS Box
Depending on the material, other than the hole saws mentioned above, you could use one of these. Also useful for cutting out felt washers for the back of knobs and also sorts of other circular plastic parts. For plastic reverse the blade so you are scoring the material rather than slicing, otherwise it tends to skew out of the 'cut'.
https://www.amazon.co.uk/Olfa-Compas.../dp/B000BK7NWC Andrew
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