- Thread starter
- #61
I knew I still had unfinished business with the Ark.
It still wasn’t really flat and I knew it. It was bugging me.
I only had to get it flat once and that was it so I decided on trying one final time.
I ordered some more silicone carbide wet and dry, pulled out the big granite slab and got going.
This time I had 20 sheets of 60 grit and I needed them all.
Each one would last for maybe 20 seconds then go real slow.
Sometimes I’d get close to flat then inexplicably move away from it again then come back towards it.
Draw sharpie grid. Grind, rinse, dry, draw sharpie grid, check with straight edge, replace paper, spray,
Grind, rinse, dry, draw sharpie grid, check with straight edge, replace paper, spray,
over and over and over….
Finally after the 20 sheets were done and the sweat glistened on my brow, I felt I must have gotten it nearer to the mark.
I then did 5 sheets at 120 grit,
5 at 240 and 5 sheets at 400.
At 400 the stone began to really stick to the surface and sharpie grids were removed very quickly. I felt that finally I must be close.
I had no higher grit wet and dry so I finished on 600 grit SIC for a few minutes in a metal cookie tray on my granite slab.
This somehow burnished a centimetre patch near one of the corners which is now highly reflective.
I lightly oiled the stone and ran some laps on my Friodur.
100, 200, 300 I was enjoying myself.
It was peaceful and relaxing and the oily feedback and occasional high pitched ‘Tink’ as the spine landed on the stone was nice.
No I just need to strop and shave.
I’ve actually been getting great edges off the stone anyway even as non-flat as it was but I’m looking forward to tomorrows shave test to see if there’s any improvements to be had.
It still wasn’t really flat and I knew it. It was bugging me.
I only had to get it flat once and that was it so I decided on trying one final time.
I ordered some more silicone carbide wet and dry, pulled out the big granite slab and got going.
This time I had 20 sheets of 60 grit and I needed them all.
Each one would last for maybe 20 seconds then go real slow.
Sometimes I’d get close to flat then inexplicably move away from it again then come back towards it.
Draw sharpie grid. Grind, rinse, dry, draw sharpie grid, check with straight edge, replace paper, spray,
Grind, rinse, dry, draw sharpie grid, check with straight edge, replace paper, spray,
over and over and over….
Finally after the 20 sheets were done and the sweat glistened on my brow, I felt I must have gotten it nearer to the mark.
I then did 5 sheets at 120 grit,
5 at 240 and 5 sheets at 400.
At 400 the stone began to really stick to the surface and sharpie grids were removed very quickly. I felt that finally I must be close.
I had no higher grit wet and dry so I finished on 600 grit SIC for a few minutes in a metal cookie tray on my granite slab.
This somehow burnished a centimetre patch near one of the corners which is now highly reflective.
I lightly oiled the stone and ran some laps on my Friodur.
100, 200, 300 I was enjoying myself.
It was peaceful and relaxing and the oily feedback and occasional high pitched ‘Tink’ as the spine landed on the stone was nice.
No I just need to strop and shave.
I’ve actually been getting great edges off the stone anyway even as non-flat as it was but I’m looking forward to tomorrows shave test to see if there’s any improvements to be had.