I made 2 chisels out of discarded jack hammer bits. They weigh 4.5 pounds and are 20 inches long. They keep a good sharp edge and do not bounce. The 6 sided polygon shape is easy to hold and rest on the lathe.
Well done, curious looking tool you've made there. I'm pretty shure that what you're referring to as tempering is actually the hardening process - tempering is what you'd be going through after the actual hardening process at lower temperatures to put a bit of strength back into the very hard but brittle (austenite) metal. If you ever find that you're tools are performing well in terms of sharpness but tend to chip out a lot or even break, consider tempering them after you've hardened them.
Thanks! Yeah, there are several ways to get a really sharp edge and I have gotten better at it since this video. I bought a hand sharpening kit and it has helped a lot. Depending on the blade shape I switch between sharpening one side to both sides regularly. Thanks for the suggestion!
The so called lathe knife is basically just a skew chisel, and yes it's a pain to use without catching. There are a bunch of videos out there on how to use a skew chisel but my practice has told me that when you roll beads, you REALLY want the toe end of the edge (you know the short end) to dig into the wood. Problem is if they are not absolutely sharp there will be some resistance and if you don't hold it at the right angle and edge it will catch. I've ruined a bunch of pieces this way. I made my skew chisel with a HSS blank (you know ones for metal lathes as I am using a metal lathe to turn wood). Done right a skew chisel will give you absolutely beautiful finishes but otherwise it just wants to catch. Try to make your own carbide lathe tools... they require little skill to use and while they don't give as good of a finish as a skew chisel, you can use sandpaper to get the finish you want. Another problem with using a file though is that cheaper files are case hardened, that means the middle of the file is basically soft low carbon steel.
Nice video and nice knife! Isn't the metal shaft a bit long? I feel like the more handle, the better. Especially considering that you're never reach far with the tool because of the thiness of it and the vibrations it would create. Have you tested the tool ? what do you think?
Thanks! I really like it. The shaft could be shorter because I haven’t used the full length yet. It’s a fun tool to use but it does like to bite in if it’s not held just right. Not a beginner lathe chisel.
The SHANK of this tool must be annealed before use. They are dangerous because the steel is way too brittle, due to its extreme hardness, and therefore is very prone to breaking over the tool rest. A shard of sharpened steel is bound to go flying in random directions, maybe towards the operator. Please understand metallurgy before posting DIY videos.
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I made 2 chisels out of discarded jack hammer bits. They weigh 4.5 pounds and are 20 inches long. They keep a good sharp edge and do not bounce. The 6 sided polygon shape is easy to hold and rest on the lathe.
Thanks! That’s a great idea. I’ll have to try it out sometime.
Well done, curious looking tool you've made there. I'm pretty shure that what you're referring to as tempering is actually the hardening process - tempering is what you'd be going through after the actual hardening process at lower temperatures to put a bit of strength back into the very hard but brittle (austenite) metal.
If you ever find that you're tools are performing well in terms of sharpness but tend to chip out a lot or even break, consider tempering them after you've hardened them.
Thanks! Yes you are correct. I'll keep this in mind.
Im kinda new to this, but from what ive seen, youll get a sharper edge from sanding only one side, not both. Thanks for the video.
ruclips.net/video/2mJZH29bAHI/видео.html
Thanks! Yeah, there are several ways to get a really sharp edge and I have gotten better at it since this video. I bought a hand sharpening kit and it has helped a lot. Depending on the blade shape I switch between sharpening one side to both sides regularly.
Thanks for the suggestion!
Great job!
Thanks!
Nice knife!
Thanks!
Nice!
Thanks!
The so called lathe knife is basically just a skew chisel, and yes it's a pain to use without catching. There are a bunch of videos out there on how to use a skew chisel but my practice has told me that when you roll beads, you REALLY want the toe end of the edge (you know the short end) to dig into the wood. Problem is if they are not absolutely sharp there will be some resistance and if you don't hold it at the right angle and edge it will catch. I've ruined a bunch of pieces this way. I made my skew chisel with a HSS blank (you know ones for metal lathes as I am using a metal lathe to turn wood). Done right a skew chisel will give you absolutely beautiful finishes but otherwise it just wants to catch. Try to make your own carbide lathe tools... they require little skill to use and while they don't give as good of a finish as a skew chisel, you can use sandpaper to get the finish you want. Another problem with using a file though is that cheaper files are case hardened, that means the middle of the file is basically soft low carbon steel.
Nice video and nice knife! Isn't the metal shaft a bit long? I feel like the more handle, the better. Especially considering that you're never reach far with the tool because of the thiness of it and the vibrations it would create. Have you tested the tool ? what do you think?
Thanks! I really like it. The shaft could be shorter because I haven’t used the full length yet. It’s a fun tool to use but it does like to bite in if it’s not held just right. Not a beginner lathe chisel.
Muito eficiente esse formao. Fou tentar fazer um,vi que ele corta muito a madeira.
What angle do you sharpen this kind of lathe knife ?
Здорово
Thanks, I appreciate it! 😁
The SHANK of this tool must be annealed before use. They are dangerous because the steel is way too brittle, due to its extreme hardness, and therefore is very prone to breaking over the tool rest. A shard of sharpened steel is bound to go flying in random directions, maybe towards the operator. Please understand metallurgy before posting DIY videos.
Thanks! I’ll look into it more next time.
Yep. I do think the shaft should be annealed too.
Sure it’s not a whale harpoon?
Yeah, it’s looks like one :)
Надо было полосой оставлять. Самому держать не удобно
Great job man, I've made a few chisels from old files, scrapers and skews, this I'll be trying too 🤘🤘 instagram.com/adampinson
Thanks!