Home made Fly Cutter

Nah, I use flat points in all my tool holders.
 
magu said:
Basil, I just made my own fly cutter after reading though your thread so thank you for the inspiration! As for the surface finish in the slot, I has the same "rippled" finish. I made my 3/8" slot with a 3/8" end mill and found that by bumping it over just a hair (so I was only cutting one wall) I got a much better surface finish. Next time I think I would use a slightly smaller cutter and finish up to the tool width so I could get a good surface and a nice sliding fit.
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Hi Magu , I just saw your comment on preventing the rippled effect on the slot sides. I like your Good idea to use a slightly smaller cutter and to cut each side independently till the slot width is at the correct size to get a nice finnish. Also I see you milled a small chamfer at the end of the slot where the tool bit protrudes, that is a nice touch. Thank you for your comments.
Basil
 
I milled the slot for the tool bit on the wrong side of the center line, so this fly cutter has to run anti clockwise to cut.
Well these type of mistakes will go as experience increases.
I would certainly appreciate your comments, as I can only improve from them
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Don't feel bad. I have an indexable endmill I made at work that I have to run in reverse. But that was because my design didn't account for the slant in the insert going the way it did. But, that's why we have reverse. Your fly cutter looks good by the way. I recently made one myself for my shop since I couldn't find the one I made in college.
 
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