Thread: Lapping the GY20k

You won't believe this. I just sold one of my hones to a nine yearold girl. First come, first served fellas.

I drew a grid on my G20 with a pencil and then lapped it with a Naniwa lapping stone. It's pretty coarse and it still took a while! Thinking, do I need to lap it with something finer after the naniwa lapping stone? Could I use naniwa 1k which I already own?

Originally Posted by mrsell63

You won't believe this. I just sold one of my hones to a nine yearold girl. First come, first served fellas.

That was my daughter, Jerry - I knew you had to prove a point so I sent her straight round!

Unfortunately she dropped it on the way home - magic rubbers, anyone...?

Regards,
Neil

I used really well worn dmt 325, and it took forever to lap with that- no surprise there.
I then follow with coticule bout to mirror the surface- just how I prefer.
Stone is easy to use, if you have to correct touch and the blade is truly ready for the 20k, every time you do ~30 laps and you are done. No pastes, sprays or any other hoo doo is needed before the strop.

I totally agree, Stefan.

However, the key is, as you say '...if you have the correct touch and the blade is truly ready...' without those two, its not a walk in the park.

I should imagine that applies to every finisher, no matter what it is, and if you have not got the right touch and the edge is not ready, then a better/more expensive hone is not going to make it so.

That is not to say that the 'feel' the GY20k imparts to the edge is wonderful - just that it won't be wonderful if the honer has 'issues'.

Regards,
Neil

Originally Posted by Neil Miller

I totally agree, Stefan.

However, the key is, as you say '...if you have the correct touch and the blade is truly ready...' without those two, its not a walk in the park.

I should imagine that applies to every finisher, no matter what it is, and if you have not got the right touch and the edge is not ready, then a better/more expensive hone is not going to make it so.

That is not to say that the 'feel' the GY20k imparts to the edge is wonderful - just that it won't be wonderful if the honer has 'issues'.

Regards,
Neil

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Sounds like it would be safe to say that if your shave off the GY20k doesn't cut the mustard, neither does your honing ability.

But realistically, this would hold true regarding any finisher.

The Atoma 1200 is the best lapping plate I've had, and I've had 'em all. I plan on getting the 600 to make the 1200 last longer. I tried the GDLP on the 20k and it was slow going, so I soon went to the 1200. Great lapping plate !

Originally Posted by JimmyHAD

The Atoma 1200 is the best lapping plate I've had, and I've had 'em all. I plan on getting the 600 to make the 1200 last longer. I tried the GDLP on the 20k and it was slow going, so I soon went to the 1200. Great lapping plate !

I too have an Atoma 1200. Maybe I should use this to lap the G20k? I love the Atoma as well...it's very fast for a 1200 diamond plate (faster than my DMT 1200)....

Originally Posted by jpcwon

I too have an Atoma 1200. Maybe I should use this to lap the G20k? I love the Atoma as well...it's very fast for a 1200 diamond plate (faster than my DMT 1200)....

I began with the 325 and got at least half way 'there' before switching to the Atoma. I've only had it a week but if it doesn't wear out fast, it will be the best I've ever had.

I used Atoma 400 & 1200 to lap mine. The 20k was bowed so after realising that I had started on the convex side I moved to the concave side. Then lapping went much quicker . It's easier to get flatness if if the lap starts contact at the 2 end points rather than rocking all over the middle.