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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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5th Jun 2021, 3:01 pm | #1 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Neatest cutting of a tag board
Good afternoon all.
Please let me know the best (neatest) way of cutting the attached tagboard. Brian |
5th Jun 2021, 3:03 pm | #2 |
Tetrode
Join Date: Mar 2018
Location: Nottingham, Nottinghamshire, UK.
Posts: 88
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Re: Neatest cutting of a tag board
I'd use a junior hacksaw.
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5th Jun 2021, 3:11 pm | #3 |
Dekatron
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,311
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Re: Neatest cutting of a tag board
Otherwise you could score it on both sides, using a steel rule to keep the scores straight, and then snap it and tidy up the ends with a flat file.
(Probably the neatest way would be to machine it, cutting through from the back surface using a CNC router or a milling machine and the narrowest possible cutter, but I'm guessing that if you had either of those things you probably wouldn't be asking the question .) Cheers, GJ
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5th Jun 2021, 3:15 pm | #4 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Neatest cutting of a tag board
Thank you.
Have thought about both ways but as usual, my first stop is always here first as always some great info/ideas on here. Brian |
5th Jun 2021, 3:34 pm | #5 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,878
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Re: Neatest cutting of a tag board
Snapping can flake the SRBP. I'd go for a saw followed by a file. It helps if you can sacrifice one pair of turrets and saw across through their holes. File to final size and finish.
David
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5th Jun 2021, 4:06 pm | #6 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,853
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Re: Neatest cutting of a tag board
Measure out & mark with a steel rule & a scriber. Cut slowly and carefully with a fine-toothed hacksaw. File away the coarseness of the cut with a flat file, then finish with a piece of P180 sand paper laid flat on a hard surface. Any imperfections can be seen against the edge of a steel rule or square. Most tagboards from yesteryear are made from Paxolin. Best practice first on a gash piece of paxolin or similar resin board.
Regards, David |
5th Jun 2021, 4:26 pm | #7 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Neatest cutting of a tag board
Thank you for alternative methods.
Brian |
5th Jun 2021, 4:43 pm | #8 |
Octode
Join Date: Dec 2018
Location: Llandeilo, West Wales, UK.
Posts: 1,092
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Re: Neatest cutting of a tag board
Score a line for the cut with a Stanley knife and steel ruler.
Then slowly with a junior hacksaw. Or use a Dremel and the thin diamond disc if you have one. The score helps keep the cut straight and helps stop chattering.
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5th Jun 2021, 5:11 pm | #9 |
Guest
Posts: n/a
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Re: Neatest cutting of a tag board
A fret saw, very fine blades and with a bit of care a well finished cut. A much underrated tool for those odd shaped holes one needs for connectors too.
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5th Jun 2021, 5:24 pm | #10 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,878
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Re: Neatest cutting of a tag board
The greater depth of a normal hacksaw blade makes it less wandery than a junior one. Go for as many teeth per inch as you can find and cut with the saw at a horizontal angle that keeps several teeth at once through the thickness of the paxolin. It's slower than ripping through with the blade perpendicular but it's smoother and straighter.
David
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5th Jun 2021, 5:35 pm | #11 |
Hexode
Join Date: Jan 2018
Location: Portsmouth, Hampshire, UK.
Posts: 428
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Re: Neatest cutting of a tag board
I've used modelmakers saws before to cut paxolin, a very neat finish indeed. They cut on the back stroke rather than forward, this allows more control than you'd think.
Same at this one in the link: https://www.modellingtools.co.uk/zon...00-11464-p.asp I am in no way connected with the above company just a satisfied customer.
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5th Jun 2021, 6:59 pm | #12 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Neatest cutting of a tag board
Thank you, for all of your advice.
Brian |
5th Jun 2021, 7:00 pm | #13 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,998
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Re: Neatest cutting of a tag board
I've done it in the past using a tile-saw [the flat-bed motor-powered version] which cuts the workpiece using copious water-lubrication [with a dash of detergent added to the water].
As mentioned, SRBP/Paxolin has a tendency to tear/split if you use an aggressive saw; supporting the back of the cut, using a high speed and a slow feed-onto-the-blade is essential. That's where the water comes in - it cools things and stops your cutting exercise turning into a burning-exercise. I've cut SRBP/Paxolin up to 6mm using this method, and the result is rather good. |
6th Jun 2021, 11:12 am | #14 |
Heptode
Join Date: Nov 2009
Location: Scarborough, North Yorkshire, UK.
Posts: 510
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Re: Neatest cutting of a tag board
Years ago when making your own pcb was the thing to do, I made fibre glass board cutter based on the tile cutter idea. A small 12 volt motor powering a diamond impregnated disc and two parallel rods. The motor slides along the rods which are mounted on two aluminium pillars. I attach the workshop vac cleaner up, as the dust is not good for the lungs. If any one would like a picture I think I could sen one. Ted
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6th Jun 2021, 12:43 pm | #15 |
Nonode
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 2,853
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Re: Neatest cutting of a tag board
By the by, just thought I'd mention it - some serious tag de-soldering & cleaning is needed. I ken it's off topic, but there is heaps of advice on de-soldering, (and Paxolin cutting), available via "Search". Probably via YouTube as well these days.
Regards, David |
6th Jun 2021, 12:56 pm | #16 |
Heptode
Join Date: Jan 2008
Location: Shrewsbury, Shropshire, UK.
Posts: 841
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Re: Neatest cutting of a tag board
I realise that not everyone will possess a bandsaw, but that's what I always use, both for tagboards & PCB material, including glassfibre.
Works really well with a fine blade. David. |
6th Jun 2021, 4:02 pm | #17 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Neatest cutting of a tag board
Good afternoon all; all of the above noted, thank you.
Brian |
12th Jun 2021, 9:01 am | #18 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Re: Neatest cutting of a tag board
I use a dremmel type tool with a fine cutting disc. Score both sides and snap, finish with file.
Mike |
12th Jun 2021, 11:20 am | #19 |
Heptode
Join Date: Nov 2018
Location: Staffordshire Moorlands, UK.
Posts: 595
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Re: Neatest cutting of a tag board
I have a Dremel, will give it a go; thanks Mike.
Brian |