|Forum topic by tyskkvinna||posted 07-19-2011 05:08 PM||1745 views||0 times favorited||18 replies|
07-19-2011 05:08 PM
I have a surplus (and by surplus I mean “100+ sheets”) of 4×8 plywood that was produced somewhere between 1970-1975, I think. Maybe a little earlier but definitely not any later… It was part of a subfloor so it has nail holes around the edges but that is mostly confined to just the perimeters of the wood. I am fairly certain it is some kind of pine/birch mashup thanks to the colour and smell of the chips when I make them. It is also unique plywood (at least compared to what I’ve ever used)- the top (and bottom) layers are just as thick as the rest of the layers, which is just under 0.12”. The whole thing is a hair over 0.75” thick. 0.7559” my calipers told me…
There are knots (which are actually really pretty in this context) and a lot of the inner layers have voids. The wood sands up magically smooth.
If you aren’t familiar with the stuff I do, it’s not just straight cuts—I do a lot of engraving, contouring, sculpting, etc.
I want to take this “bad wood” and turn it into pretty things. I have lots of plans already.
-What are your favourite ways to work with voids? Sometimes it will be a “surface void” so I need to fill it so it will be smooth and look interesting. I am primarily sealing/staining this rather than painting, but I of course am not expecting the surface repairs to be invisible. Was kind of aiming for a contrasting effect. I know epoxy and sawdust/glue methods work well for small voids, but there are usually big enough for me to stick a #2 pencil into easily.
-And what about the “inside voids”? I’ve made quite a few cuts where you can see under the top layer is a void. I would prefer to fill it so that it remains stable. Usually it is in the middle of engraving, so filling it and ensuring that the engraving stays in-tact is kind of tricky. I can’t go back and re-engrave it so whatever I do will be done by hand.
-What is a good grit to start out with when I sand this stuff? It’s kind of fuzzy and flaky (not unlike the generic ply surface you’d find at HD) but it DOES get smooth and pretty with some elbow grease. I tried starting at 100 and it was too fine, but I feel like going down to 60 or 80 and I’m also scratching up the surface more than its worth. Suggestions?