03-23-2017, 10:49 AM
(This post was last modified: 03-23-2017, 10:52 AM by Paul-in-Plymouth.)
After I finished the log cradle I described recently, I made some wedges of the hop-hornbeam ironwood.
To scrub hop-hornbeam efficiently, I had to go cross-grain. That would have been difficult without the log cradle. At first I tried with-grain, like the red oak wedges I reported earlier, but I could do at most ~1/16” scoops. I did one taper with-grain, but it was really slow, hard work. I had done the red oak with-grain easily at 1/8”- 3/16” scoops.
If the green red-oak seemed like scooping ripe musk melon out with a spoon (similar color too), then the hop-hornbeam with-grain was more like trying to plow Red River Valley gumbo. (There are YouTube videos of that delight out there if you’ve never had the pleasure
) With-grain was a definite challenge in hop-hornbeam. There’s a reason it’s called “ironwood.”
Cross-grain was a different matter. I was able to go up to 1/8” scoops, and the wood sheared right off, crisply. The strokes came quick and easy. I think my plane breathed a sigh of relief and said, “This is what I was made to do, dummy!” My arms and shoulders were relieved too.
Meanwhile, I scrubbed like the cartoon Tasmanian Devil. The chips flew, and things took shape. It was helpful every now and then to plane with-grain to assess the ramp and make in-flight corrections. The cross-grain scallops made planing with-grain easier too, because the scallops broke the chips until they were planed away. Then cross-grain again. To help keep things regular, I followed the same general scheme of establishing a succession of decreasing complete tapers, 45º, 23º, etc., but planing both ways gives more flexibility to the process.
I probably have the wedges I need for the moment, but there is material remaining for implements to drive them: mallet, maul, beatle, bat, club, cudgel,… you name it. More work to do.
I came to planing wedges with the scrub plane because my dominant hand is impaired enough to prevent doing with an axe or draw knife. I don’t have a saw I want to use on green oak, other than a pruning frame saw that doesn’t steer. The scrub was my last choice this time, but another time it would be #1. It was pure fun on the oak, but the ironwood really made a believer of me.
However, I still wonder about sawing the tapers. If this were KD lumber I’d saw them in the shop in any of several ways. Can anyone recommend a hand saw for cutting green hardwood at 5º-10º off the grain? Is that a rip cut or XC?
Earlier posts in this series on wooden wedges with the scrub plane:
https://forums.woodnet.net/showthread.php?tid=7328788
https://forums.woodnet.net/showthread.php?tid=7328655
https://forums.woodnet.net/showthread.php?tid=7328503
https://forums.woodnet.net/showthread.php?tid=7328253
To scrub hop-hornbeam efficiently, I had to go cross-grain. That would have been difficult without the log cradle. At first I tried with-grain, like the red oak wedges I reported earlier, but I could do at most ~1/16” scoops. I did one taper with-grain, but it was really slow, hard work. I had done the red oak with-grain easily at 1/8”- 3/16” scoops.
If the green red-oak seemed like scooping ripe musk melon out with a spoon (similar color too), then the hop-hornbeam with-grain was more like trying to plow Red River Valley gumbo. (There are YouTube videos of that delight out there if you’ve never had the pleasure
) With-grain was a definite challenge in hop-hornbeam. There’s a reason it’s called “ironwood.”
Cross-grain was a different matter. I was able to go up to 1/8” scoops, and the wood sheared right off, crisply. The strokes came quick and easy. I think my plane breathed a sigh of relief and said, “This is what I was made to do, dummy!” My arms and shoulders were relieved too.
Meanwhile, I scrubbed like the cartoon Tasmanian Devil. The chips flew, and things took shape. It was helpful every now and then to plane with-grain to assess the ramp and make in-flight corrections. The cross-grain scallops made planing with-grain easier too, because the scallops broke the chips until they were planed away. Then cross-grain again. To help keep things regular, I followed the same general scheme of establishing a succession of decreasing complete tapers, 45º, 23º, etc., but planing both ways gives more flexibility to the process.
I probably have the wedges I need for the moment, but there is material remaining for implements to drive them: mallet, maul, beatle, bat, club, cudgel,… you name it. More work to do.
I came to planing wedges with the scrub plane because my dominant hand is impaired enough to prevent doing with an axe or draw knife. I don’t have a saw I want to use on green oak, other than a pruning frame saw that doesn’t steer. The scrub was my last choice this time, but another time it would be #1. It was pure fun on the oak, but the ironwood really made a believer of me.
However, I still wonder about sawing the tapers. If this were KD lumber I’d saw them in the shop in any of several ways. Can anyone recommend a hand saw for cutting green hardwood at 5º-10º off the grain? Is that a rip cut or XC?
Earlier posts in this series on wooden wedges with the scrub plane:
https://forums.woodnet.net/showthread.php?tid=7328788
https://forums.woodnet.net/showthread.php?tid=7328655
https://forums.woodnet.net/showthread.php?tid=7328503
https://forums.woodnet.net/showthread.php?tid=7328253