Lathe Workshop for Beginners. Part 2 making a flycutter.
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Uploader Comments (myfordboy)
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Useful tip with the scribing, that should come in handy for my own project involving a faceplate
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I should have added that the flat also makes for easy grinding and setting up, provided you grind it in the correct orientation relative to the cutting faces. For grinding, I clamp the bit in a length of square bar with an axial hole. I've made an adjustable table and angle-setting plates (5 deg, 10 deg etc) for the grinder.
BTW, I avoid overheating HSS bits during grinding. I'm not convinced that properties aren't altered and its easy enough to dip the bit in cold water every few seconds.
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Flycutters can be dangerous: if the cutting bit is ejected, it is then the equivalent of a bullet.
I grind a flat on the shank of any flycutting bit, avoiding sharp (stress-raising) corners. The clamping screw bears on the flat. If the screw becomes loose in use, you might (should) receive an audible 'rattle' warning that all is not well BEFORE the screw completely releases the bit.
Usual discalimers.
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@viol999 No, with high speed steel the hardness remains even if its red hot.
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when grinding the old center bit into a cutter bit on the bench grinder is there any chance of ruining the temper of the high speed steel?
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could have just used a reg fly cutter in the 3 jaw do the same thing?
Bigwingrider1800 1 month ago
@Bigwingrider1800 I wanted a flycutter with a large sweep to enable a large surface to be covered in one pass.
myfordboy 1 month ago
Clean and efficient! No wasted steps. Do your hands or lathe ever get dirty? Did you make the entire faceplate originally before you used it as a flycutter? Thanks again for the videos.
algae1000 2 months ago in playlist More videos from myfordboy
@algae1000 . Sure I get dirty. You want to see the state of the workshop at the moment!
The faceplate was bought in as a chuck backplate.
myfordboy 2 months ago
We want to hear your voice! I bet you have an amazing British accent!
billygotgrove 3 months ago
@billygotgrove You will never know!
myfordboy 3 months ago 2