I have a project I’m working on. Right now I’m making a mockup out of scraps, to work out the details.
I want to end up with a triangle, as marked. The blank is 8” x 8” x 2 and 1/2” thick. That is also the finished size I need . I want to cut the triangle out of the middle.
I came up with this sled to run through the planer.
The front block sets the angle, the back block keeps it there. A block on each side prevents side to side movement. It is a tight fit.
In this position, the top pencil line is level, an angle gauge laid on the blank indicates 10 degrees.
I was scared to turn on the planer. In my mind, I see a violent conclusion to this. I visualize the blank coming out of the sled, inside the planer.
I’m thinking, the blank needs to be 2” longer. I could run screws through the sideblocks, and trim off an inch from each end later. Since this is scraps, I could run in screws and not worry about it. I just have to make sure they are below the final size.
Ultimately, all sides will be rounded over. I’ll have questions about that, I’m sure.
I want to make several of these.I would prefer to make this from a single piece of heavy hardwood, but I haven’t bought anything yet.
This is what I came up with. How would you do it? Thanks!
-- It must be jelly baby, cause jam don't shake like that...
I am a little worried it is too short, and that the risk vs reward may be a little skewed. If that were to get loose in the planer, it may be all she wrote for the planer or anything behind it. I am seeing projectiles being a possibility. Do you have a bandsaw and maybe a handplane?
I’ve done something a little similar recently. I did it on the router table – with small nibbles it wasn’t scary at all. This blog shows what I did, but I bet you can do it better!
-- "Do not speak – unless it improves on silence."
If you wanted to use the planer, it would seem safer to run it in sideways, so as the piece goes through, the height of the workpiece is not changing. It’s just that at the beginning, you’re only planing a narrow portion of the wood. With each pass, the amount planed would get wider.
Granted, you may get some tearout since the grain is running across the planer, but for a final pass, maybe you could run it with the grain?
Immediate problem on picture 2: the left uppermost corner of the work piece overhangs outside of the sled. Not good. Make the block that sets the angle to support the edge of the work piece. Because there is so much material to remove my order of preference would be: bandsaw, handsaw, table saw (with sled, cut from two sides), planner, router (with sled), hand plane. You could also do a series of non-through cuts of variable depth on a table saw, knock out the waste with a chisel and plane smooth.
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