Dennis- what’s the theory/purpose of the used motor oil soak? Does the carbon particulate in the old oil collect in the pores of the hamon line and darken it?Then, I soak the entire blade in old motor oil for 24-48 hours.
I wonder if strong coffee would accomplish the same thing? I know many makers use coffee to increase contrast in their Damascus. I would think the process would be similar.Dennis- what’s the theory/purpose of the used motor oil soak? Does the carbon particulate in the old oil collect in the pores of the hamon line and darken it?
If so then that makes sense. I wonder if dry graphite powder like used for lubricating locks and hinges would have the same effect if used in conjunction with wet sanding / polishing. Just kinda thinking out loud here...
Thanks, andy
I am gonna have to try the used oil thingy though I am dying to see the difference it makes.
That is funny right there...Pasture wood handle with a horse urine hamon.... smells like a successful combination to me.
John,Why? I mean seriously.....this is the first time I've EVER even heard anyone mention that soaking a hardened blade in old used motor has any effect on a hardened blade with hamon, let alone any positive effect. And he cant even tell you what it does or remember who told him, or why he's doing it.
Now you're dying to try it? And now you don't even know why. I mean, trying new things is fine but they should have some basis or merit from facts or the very least....common sense.
Do most makers just have some deep-seeded emotional attachment to old used motor oil? I mean we just are starting to get guys past the idea that its a great quenchant. Now its going to be the next magic hamon snake oil?
There are literally dozens of tutorials on line by guys that have more experience with hamon than most of the members here combined....and not one that I've ever seen mentioned soaking a blade in old used motor oil.
And I'm friends with and have spoken at length to 3 of arguably the best in the business at creating hamon and none of them have anything resembling soaking a blade in used motor oil. Maybe we're all missing something.
I'm sorry but this is exactly how bad information or at least misinformation spreads.....the blind leading the blind with no logical or practical reason and can't explain why....but by golly it works.
Maybe I'm having a bad day or maybe I've grown too critical or cynical too be of much use any more, but this is yet another stark example of no one doing any research and a few makers relatively inexperienced in creating hamon starting to teach and do WIPS because they can get some "awesome hamons" on their 1084.
You know what.....disregard all the above....if you guys want to waste time and make messes soaking your blades in old motor oil because it makes your hamon more awesome, knock yourselves out.
John,
In my opinion you are a very gifted and skilled maker, with tons of experience and you make knives that simply astounds me. Understand therefore that I have the highest opinion of you. In the same tone, your opinion on any knife making topic bears much weight.
Therefore, by what I hope to convey now is in no way to take away from my above mentioned opinions.
The factual basis of the comments in your post, I cannot fault, but the tone comes across as somewhat condensending. You may not necessarily have meant it that way, and I can be wrong in my perception. I am am happy to be proven wrong and will gladly apologise if I am, but I do feel the conviction to express my feeling on this matter.
I don't think that trying a coffee etch is a bad idea. As you stated it's used all the time on Damascus. The dark rich color it produces has me intrigued, and I'll be experimenting with it here soon on some hamon. Worst case scenario is it was a horrible idea and I'll ruin a knife..... It wouldn't be the first time or the last time I throw one in the trash. Give it a try you never know.John does make a good point. I withdraw the coffee suggestion. I will stick to simply drinking it.
Agreed. I think it may be slower than vinegar or a Ferric Chloride solution but that is not always a bad thing.I don't think that trying a coffee etch is a bad idea.