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- Dec 24, 2020
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Edit to add: This isn't for me, it's just something that was discussed elsewhere.
Okay, this is pretty random, but it came up on another venue and made me think for a minute. The topic was getting carbide insert lathe tools on center when the tool is a bit large for the lathe. In this case, the tool needs to move lower to get on center and the lathe is fit with a standard Aloris-style QCTP. With the height adjuster nut raised all the way the tool holder hits the top of the compound before the tool is on center.
That leaves us with removing material from the bottom of the tool holder, allowing it to go lower or removing material from the bottom of the tool so it sits lower in the tool holder.
Since smaller lathes don't have an excess of rigidity, which solution is more rigid? Let's say we have to come down .125" or so.
My theory is that removing material from the bottom of holder makes it more likely to flex. A larger tool will be slightly more rigid than a smaller tool, but that would seem to be a smaller factor. Putting a rigid tool on a weaker shelf just doesn't seem to be the better option. I'd rather put a weaker tool on a more rigid shelf. Opinions? Guesses?
Okay, this is pretty random, but it came up on another venue and made me think for a minute. The topic was getting carbide insert lathe tools on center when the tool is a bit large for the lathe. In this case, the tool needs to move lower to get on center and the lathe is fit with a standard Aloris-style QCTP. With the height adjuster nut raised all the way the tool holder hits the top of the compound before the tool is on center.
That leaves us with removing material from the bottom of the tool holder, allowing it to go lower or removing material from the bottom of the tool so it sits lower in the tool holder.
Since smaller lathes don't have an excess of rigidity, which solution is more rigid? Let's say we have to come down .125" or so.
My theory is that removing material from the bottom of holder makes it more likely to flex. A larger tool will be slightly more rigid than a smaller tool, but that would seem to be a smaller factor. Putting a rigid tool on a weaker shelf just doesn't seem to be the better option. I'd rather put a weaker tool on a more rigid shelf. Opinions? Guesses?
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