Reddit reviews PORTER-CABLE Sandpaper Roll, Adhesive-Backed, 4 1/2-Inch X 10-Yard, 120-Grit (740001201)
We found 3 Reddit comments about PORTER-CABLE Sandpaper Roll, Adhesive-Backed, 4 1/2-Inch X 10-Yard, 120-Grit (740001201). Here are the top ones, ranked by their Reddit score.
Clog- and loading-resistant sandpaper can be used on a wide variety of materialsComprised of aluminum oxide grainResin coating fights against damage caused by heat or humidityClog- and loading-resistant sandpaper can be used on a wide variety of materialsComprised of aluminum oxide grainResin coating fights against damage caused by heat or humidityResponsive adhesive gives you greater controlWorks on plastic, wood, painted surfaces, fiberglass, and metal
If the pieces are pretty far off I would make a router sled
https://i.imgur.com/A6y2Zae.jpg
lots of youtube videos showing how to make and use these. I have flattened and thicknessed planed many boards with mine.
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If you only need a little bit of flattening, or want to clean up a board that you just routed down: Order some adhesive sandpaper roll
https://www.amazon.com/PORTER-CABLE-740001201-2-Inch-Adhesive-Backed-Sanding/dp/B0000223SK
Obtain a flat strip of granite from a local marble countertop place, they gave me a leftover for free. 4x30". Apply the sandpaper to the granite. Pencil cross hatches onto your board and sand until they all disapear.
If you do pursue diamond stones, here is a list of what I have.. I am not sure if this the be-all-end-all, and I can definitely recommend trying lots of things, because sharpening seems to be something so personal. Just wanted to collate in one place what I have settled on thus far.
This is one of the cheaper setups. I think it would be interesting to try ceramics at the top end, and better leather for a multi-strop setup.. Just ran out of funds after trying several failed other methods ;)
OP gave you some good advice about research. I'd add that if you can somehow find someone local who can show you what sharp really is, that would be a big bonus. I haven't found that person yet myself, because I am a hermit.
Stones:
Paddles:
Stropping:
Sandpaper:
I would get a sheet of plate glass and a long strip of sandpaper. Then as long as your lumber is reasonably flat to begin with it shouldn't take too much to clean up the surface/make it flat for gluing. I haven't actually done this, but I think it would be worth a try.