Nope, no good on the knots. Or glue spots or whatever the heck those are - you talk about dense.
(Doesn’t really matter anyway, it’s not going to work for what I wanted to use it for. I was just wanting to test some different living hinge shapes. (Still think the best one for actually bending the wood is just the straight lines. It’s stable, flexible, and the easiest to shape so far.)
Lots of junk in regular plywood. But not such a big problem for its purpose. Just not something a cabinet maker or laser user wants to encounter. Some of it is good in fact - the more waterproof glues are great for lots of projects, they just don’t laser well.
I appreciate the standard that PG holds to. I use Draftboard for a ton of prototyping but use BB ply often again because it’s the same thickness as Draftboard whereas medium Draftboard isn’t the same as all of the medium PG plywoods (and they’re not the same as each other). It makes moving a design from one to the other a bit more problematic. Tight joints become loose ones or impossible depending on which material I start with. Just argues for more Fusion 360 parametric practice
That line was “typed” by Ninja, the wonder cat who decided to stroll across the keyboard.
I’m so sorry about the failed piece – it is hugely frustrating. I’ve just been using PG (except for stone and slate work) for exactly that reason. Consistency and reliability have proven to be of utmost importance, and I have really been able to rely on the PG materials in my projects…
It looks to me like there is a large rectangle of good cutting there I have been fighting those all day just trying to get a proof of concept happening. I can’t seem to find my jewelers saw frame or I would have gone there, where the piece was small enough
When I was cutting well, I could average about 1 minute per hole, drill the hole for the blade, mounting the blade, and actually doing the cut.
If my estimate is right, you’ve got about 320-ish holes there, so roughly 6 hours cutting !
What did the glowforge take, and was that a vector cut or an engrave ?