[Swansea Hackspace] Laser cutting plywood

[Aled]

Ok thanks, I think the stuff I have in the space is exterior ply which likely uses formaldehyde in it. I'll grab some nice birch plywood and whatever I don't use I'll leave in the space for anyone who wants to use.
Cheers,
Aled.



--------------------------------------------
On Thu, 6/7/17, Justin Mitchell <justin at swansea.hackspace.org.uk> wrote:

 Subject: Re: [Swansea Hackspace] Laser cutting plywood
 To: hackspace at swansea.hackspace.org.uk
 Date: Thursday, 6 July, 2017, 16:01
 
 On Thu, 2017-07-06 at 13:34
 +0000, Aled wrote:
 > I need to cut some
 shapes out for a kids party, I need to do a bunch
 > the same do I thought the laser cutter
 would be the easiest way to do
 > it. Does
 anyone know vwhat thickness of ply the laser cutter can
 cut
 > cleanly? (3mm should be
 enough) 
 The thicker the wood the slower
 the cut, i think the record on that
 machine
 is 10mm or so, which was done in multiple passes.
 
 > and does it need void
 free birch ply
 > or will any old plywood
 do?
 There are many debates about this
 online, from what i can work out its
 mostly
 about quality of finish, that any internal knots or voids
 can
 affect the cut.
 
 I have also seen it mentioned that exterior
 grade ply is best avoided,
 as some use nasty
 chemicals in the glues.
 
 > Also
 can it engrave and cut in one operation?
 Kind of, you can queue up multiple
 operations/passes with different
 settings,
 but it is a bit of faff and usually easier just to do it
 yourself.
 
 save
 each pass as a separate file with the same document size,
 then
 when you load each one it should all
 line up. 
 
 
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