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[cos918]

Hi all . I have to cut a big shape out of double sided copper clad board. I think it s fibre glass in the middle . The whole lot is about 1.5mm thick . Any one got any tips


john

[Onetenor]

Hi all . I have to cut a big shape out of double sided copper clad board. I think it s fibre glass in the middle . The whole lot is about 1.5mm thick . Any one got any tips


john

 


 Scroll saw or fine hand fret saw. Maybe just maybe a jig saw with fine blade .

[Fubar]

Rough cut to shape with Tin Snips then finish to size on a belt sander

[Plastic - RIP]

Rough cut to shape with Tin Snips then finish to size on a belt sander

And wear a dust mask & glasses - nasty fibreglass dust!

[nivapilot]

If it's electrical double sided component board, the inner core will probably be paxolin, which is a little bit on the brittle side.

I would cut rough with coping saw,(fine blade) and finish with sanding belt/discs/drums.

[inertia]

I would first mark out the shape to be removed with a scriber, making sure you really give it some pressure to score the copper cladding. The board could be made from epoxy-glass laminate; you can quite easily see the weave in this and it will be a much paler brown than paxolin (or even a slight green colour). Chain-drill a series of holes around the inside of the scribed line; join them up with either a scroll saw or fretsaw and then use a fine file or a Dremel to grind the glass back to the scribed line. Do wear a mask when working on epoxy-glass sheet - it's nasty stuff if you get a big snort of it!
DM

[cos918]

Hi All
Thank you for the good advice . I have a few scrap bit so I will see how the above ways of cutting the board work .


john

[Brian60]

Dremel router

or if you have the cash a cnc router

[wombat]

If the core is white/greenish and translucent it is probably FR4 fibreglass. If it is brown it is SRBP which is easier to cut

[tobyker]

I'd use a piercing saw. Like a coping saw, only finer teeth.

[steamboat66]

i have roughed out with the guillotine at work for a multirotor frame. if sawing, mind the dust, and make sure you have some more blades. fibre glass is very abrasive.