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Japanese Sumitsubo Ink Pot

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Project by John Smith posted 11-09-2018 10:33 PM 1620 views 1 time favorited 21 comments Add to Favorites Watch

Layout and Marking Tool Swap ~ 2018

one of my projects for the swap was the Sumitsubo Ink Pot.
having never fabricated such a project before, I practiced in High Density Urethane (HDU)
which carves like balsa wood with no grain. it took about 2 hours to go from paper pattern
to final working prototype, (see the last two photos).
when I was ready to start the real thing, I purchased a chunk of wood off of E-Bay
(species unknown) and delicately finessed it for two months into a working, fully functional
model using hand held grinders, sanders, various chisels and gouges.
the string wheel was turned on the lathe. the brass rods are from HD.
the “General’s” black charcoal powder is from my local art store.
when viewing many videos on “The Tube”, I see that the black ink is a problem when working
in the shop. it is messy, and if not used often, the ink dries out and coagulates in the pot.
so ~ I decided to use artist’s black charcoal powder instead. now, it performs like the modern
chalk string line with no shelf life for the powder.
the inside of the pot was coated with thickened epoxy to smooth it all out then a coating of POR-15
to make it leak proof in case the recipient ever wants to use the traditional black string ink.
the small brass coin on the end of the string is from my old Navy days when I made a port call
in Norway. the coin is a “one ore” which in 1967, was less than a US penny.
the outside was coated with clear satin urethane.
all in all, it was a fun project.

-- Failure is proof that you at least tried ~ now, go do it again, and again, until you get it right --





21 comments so far

View EarlS's profile

EarlS

3492 posts in 2989 days


#1 posted 11-09-2018 10:46 PM

BRILLIANT!!!

That is really quite a chalk line and all of the work and details that went into are top notch. I keep scrolling back to the pictures too look at them. It is an exceptional piece of functional art.

Please keep participating in these swaps. I always enjoy seeing your work.

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"

View Tom Regnier's profile

Tom Regnier

451 posts in 3188 days


#2 posted 11-09-2018 10:59 PM

Lots of details in a small piece. I liked looking at the work in progress photos…it really shows your work.
Great job on this john!

View ElroyD's profile

ElroyD

134 posts in 1229 days


#3 posted 11-09-2018 11:03 PM

I love this. I’ve seen some antique ones in the past, and I’ve always liked the style.

-- Elroy

View John Smith's profile

John Smith

2196 posts in 803 days


#4 posted 11-09-2018 11:19 PM

thanks guys, now that a post has been made, I can add more photos.
regretfully, I can not find photos of inside the ink pot . . . .
the lid is held firmly in place with 4 small earth magnets.
there are cotton balls under and over the string to apply the black powder
when the the string is pulled out. . . . . will try to get some photos from Woodmaster1.

.

-- Failure is proof that you at least tried ~ now, go do it again, and again, until you get it right --

View Bill Berklich's profile

Bill Berklich

1014 posts in 1029 days


#5 posted 11-09-2018 11:37 PM

Now that is cool!

-- Bill - Rochester MI

View Dave Polaschek's profile

Dave Polaschek

4599 posts in 1223 days


#6 posted 11-10-2018 01:52 AM

Nice work, John! How much string fits on the spool?

-- Dave - Santa Fe

View John Smith's profile

John Smith

2196 posts in 803 days


#7 posted 11-10-2018 01:57 AM

Dave – I think there is about 15ft of string on the spool.
that little wheel doesn’t hold much.
if someone put 10 pound fishing braid on it, it would hold a lot more.

-- Failure is proof that you at least tried ~ now, go do it again, and again, until you get it right --

View swirt's profile

swirt

4772 posts in 3613 days


#8 posted 11-10-2018 02:06 AM

Very nicely done. I like how you prototyped it with HDU.

-- Galootish log blog, http://www.timberframe-tools.com

View mikeacg's profile

mikeacg

1300 posts in 1698 days


#9 posted 11-10-2018 02:26 AM

Beautiful work John! This is the kind of chalk line I am familiar with!
Please be sure to add 2018 Marking Tool Swap to your Tags!

-- Mike, A Yooper with a drawl, http://www.artcentergraphics.com

View jeffswildwood's profile

jeffswildwood

4287 posts in 2618 days


#10 posted 11-10-2018 12:30 PM

John that is amazing! I can see that required a massive amount of patients to make.

-- We all make mistakes, the trick is to fix it in a way that says "I meant to do that".

View hunter71's profile

hunter71

3490 posts in 3827 days


#11 posted 11-10-2018 01:52 PM

Very nice indeed.

-- A childs smile is payment enough.

View stefang's profile

stefang

17039 posts in 3975 days


#12 posted 11-10-2018 02:34 PM

Very cool project John. It’s been a long time since we have seen a 1øre coin in Norway!

-- Mike, an American living in Norway.

View James E McIntyre's profile

James E McIntyre

636 posts in 1933 days


#13 posted 11-10-2018 06:54 PM

Another great work by a master. I saw a few of these tools being used on YouTube can’t remember if they were Japenese or Chinese.
I like your personal name plack. Where did you get them.
As Earl S said, its a work of art. If I had it I wouldn’t use it it would go on my display case.

-- James E McIntyre

View James E McIntyre's profile

James E McIntyre

636 posts in 1933 days


#14 posted 11-10-2018 06:59 PM

Another great work by a master. I saw a few of these tools being used on YouTube can’t remember if they were Japenese or Chinese.
I like your personal name plack. Where did you get them.
As Earl S said, its a work of art. If I had it I wouldn’t use it it would go on my display case.

-- James E McIntyre

View John Smith's profile

John Smith

2196 posts in 803 days


#15 posted 11-10-2018 09:00 PM

James – I have a trophy shop two blocks from me.
I provide them a printed drawing with the text and size I need
and they engrave it on a brass plate. . . . . only issue with them
is they don’t cut brass plates to a specific shape. they have some
small round stock oval and round plates but can’t produce custom sizes or shapes.
they were astonished at the plate I had made for my steamer trunk
in another project post . . . . thin brass is easily rough cut with tin snips then
sanded to size on the belt sander and finished up with a hand file.

.

-- Failure is proof that you at least tried ~ now, go do it again, and again, until you get it right --

showing 1 through 15 of 21 comments

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