my 4th time actually using it. its very easy, cant really see how anyone cant do "good" knurling.
not sure how "good" the tooling was, but i suppose that has a large play in the quality. i always start out at .010 and increase by .010 each pass. just feed it manually and add a bit more each pass and you should be good.
Well this is interesting. we have this big rack of steel free to us to use, out of this rack, is a weird piece of 1 1/4" "stainless" looking round bar. its odd because its very light, not quite aluminum but for a 10 foot stick, it should weigh a good 40lb or more but doesnt. our instructor has no freaking clue where it came from, google the numbers, and its AMS-4965 TITANIUM!!! took ****ing 20 min to cut on the bandsaw, its crazy hard. so, i could not resist making a top out of it! lol. confirmed its titanium too, shoots a beautiful spray of bright white sparks when put on a belt sander.
took basically 6 hours to make this. its retarded hardened stuff. the edge where the cutting tool and metal meets had a tiny spark, then white hot metal shavings, that cooled to red hot, then "normal" color as it cut. and that was only taking .015 at a time! very "different" stuff for sure. no clue how much that stick of steel was.
this stuff is so hard, that the deflection was crazy. when i got to this spot, there was a .020 difference between one side and another. i had to do 22 passes without adjusting anything just to get it to level down even. it was taking off .0005 at a time or less each time too. just insane stuff to work with. you couldnt tell visually, it would always seem to take off the same material each pass and leave a long thin metal shaving.
did a test spot on the thicker part of the shaft. i had no idea how this would come out and didnt want to chance it. i put the tail stock close by to see how much the material was deflecting.
Finished product after what felt like forever.