I see, thank you. Btw, Is there any idea to keep the removed material? I plan to use it as the polishing powder. If I use a sandpaper,...the uchiko powder will be mixed with the tungsten carbide abrasives, right?you can use an atoma diamond plate ($70), or a tungsten carbide sanding block from perma grit ($40).
A drywall sanding screen works well too ($5 for multi pack) or sandpaper, and is probably the cheapest for this purpose -- just know that the sanding screen might release loose grit, and the sandpaper, too
Then, do I need to add some water?perform the flattening over a plastic sheet, like the kind you buy for painting. A large trashbag can do, as well.
Honestly. . . do the flattening inside the trashbag, not your body . . . just the stone and the flattening device. Should catch most of the powder
Thanks for the tipI’ve had good luck with a diamond plate, water and a catch basin. Let the water evaporate.
There are probably more efficient ways, but I don’t know them.
Thanks again!Yeah, whatever method you'd like. I personally like water because I don't like the dust when using it dry.
Do you know exactly which blade should be use? The uchigumori seem way softer than the normal marble?It might also be worth it to use a masonry saw, then crush the off cuts.
Yeah, It really hard with limited tools.I'm sorry I don't know. I just remembered they existed, but you may lose a bit more stone than you want. But it will be loads faster. Still need some final flattening with a plate, but I'm afraid you'll burn through a plate or maybe two doing it all by hand, could be expensive. Hard problem with home hand tools only.
I known some use hand saw to make fingerstone, some use a knife. In my case, the cutting section quite big so...Better to stick with plan A, lol.i can gouge stones with a knife . . . i think regular saws may work too, but they will dull.
unless it's a razor stone, then that stuff is too hard . . .
uchigumori fingerstones are medium hard / soft (depends). . . so saws might be able to work
Thanks for the tip, this's the first time I heard about that mix. Btw, I just found that when using the uchigumori as a nagura on Iyoto, the slurry really good to make the hamon pop, faster than only the uchigumori.Anytime I'm polishing with an Uchigumori or finer I keep a drip pan under my sink bridge and rinse the stone into it when I'm done, capturing slurry and mud. Let the pan evaporate and harvest the remnants. I found that the mix of slurry and fine mud/powder is an ideal finishing compound in a polishing sequence. I apply it with a mineral oil felt pad and I feel like it really helps the details in iron cladding or a hamon pop.
I don't have orbital hand sander, but I realize that the uchigumori pretty soft that I can use the hacksaw blade (metal cutting type) to "plane" the surface, lol.If you're using a fresh diamond plate to flatten and also trying to save the powder, be warned that a loose diamond can make its way into your powder and wreck havoc on a polishing attempt... Ask me how I know
I've flattened an uchigumori koppa that looked very similar to that - not something I'd attempt to do 100% by hand again. I had decent results with a little orbital hand sander and plenty of super coarse (60 grit or lower) sand paper. Did it dry and outside, wearing a respirator, to handle the dust plume. I did the final bit with an Atoma 140 to get it level then an Atoma 1200 to dress the surface.
Just want to be clear, I’ve never seen anyone use that mix before either. Just saying that in my experience it’s worked well. Others here have far, far more polishing experience than I and I’d defer to them.Thanks for the tip, this's the first time I heard about that mix.
Yeah, this stone quite expensive, so...Fastest best way to flatten stones I have found is with heavy silicone carbide floor sanding belts. I cut the belts and lay them out on a board or steel plate with glue. Flatten the stones face down. Refine the surface afterwards with diamond plates.
You won’t be able to save the powder though.
Will that mix rust? I means, the slurry will turn to yellow soon or late?Just want to be clear, I’ve never seen anyone use that mix before either. Just saying that in my experience it’s worked well. Others here have far, far more polishing experience than I and I’d defer to them.
No issues with that for me so farWill that mix rust? I means, the slurry will turn to yellow soon or late?
The process I described may sound a bit aggressive however I can assure you this is the same technology used by suehiro in the lapping flattening plates on the market. For 1/10th of the price.Yeah, this stone quite expensive, so...
Will that mix rust? I means, the slurry will turn to yellow soon or late?
Fastest best way to flatten stones I have found is with heavy silicone carbide floor sanding belts. I cut the belts and lay them out on a board or steel plate with glue. Flatten the stones face down. Refine the surface afterwards with diamond plates.
You won’t be able to save the powder though.
Yeah, I saw something similar on the youtube chanel of ken-syou.The process I described may sound a bit aggressive however I can assure you this is the same technology used by suehiro in the lapping flattening plates on the market. For 1/10th of the price.
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