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Forum topic by CharlesA posted 09-23-2015 04:45 PM 1180 views 0 times favorited 16 replies Add to Favorites Watch
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CharlesA

3025 posts in 1265 days


09-23-2015 04:45 PM

I knew Jatoba was hard, but dang.

I’ve cut 8/4 Jatoba on table saw and miter saw without a major problem, but I tried to use my mortiser, and I couldn’t get more and about 3/16” before it stall. I thought maybe I had set it up incorrectly, so I adjusted the bit down a bit, but still no luck. Then I put in a piece of cherry and it went right in.

I then tried chisels, and I’m sure I can make it work, but chiseling across the grain will be some work. I gave it a solid hit with a mallet and I could barely see a groove.

I think I’ll have to use a forstner bit to make an initial hole and then chisel out the waste.

Did I say it was hard?

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson


16 replies so far

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CB_Cohick

460 posts in 718 days


#1 posted 09-23-2015 04:54 PM

And suddenly, he decided to make his project out of cherry! ;-) Just kidding, good luck whittling that chunk of iron.

-- Chris - Would work, but I'm too busy reading about woodwork.

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AandCstyle

2575 posts in 1724 days


#2 posted 09-23-2015 11:27 PM

Hey Charles, thanks for this. I have a nice plank I have been saving for the right project and I will now rule out anything that might require any hand work or minor tools. haha

-- Art

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Andre

1023 posts in 1273 days


#3 posted 09-24-2015 12:10 AM

A buddy gave me a pile of Jatoba flooring scraps and I have been making Pot scrappers, the plane and spoke shave seems to cut through easy enough but don’t bother trying to sand!

-- Lifting one end of the plank.

View gfadvm's profile

gfadvm

14940 posts in 2157 days


#4 posted 09-24-2015 12:43 AM

Charles, I have made a lot of stuff from Jatoba and it is indeed hard! BUT when you get ready to finish it, you will be very impressed. Sand it to 320 and it shines like it has finish on it.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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CharlesA

3025 posts in 1265 days


#5 posted 09-24-2015 12:44 AM

hmm. My problem is that I am matching a finish, more or less. I’ll try that 320 trick to see how it works.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

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gfadvm

14940 posts in 2157 days


#6 posted 09-24-2015 12:51 AM

Matching a finish may be a problem as I have had Jatoba of several different hues over the years. The Brazilian Cherry Timbermate grain filler does tend to darken it when finish is applied (if you were planning to fill grain). I usually do not.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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Cedrus

109 posts in 3181 days


#7 posted 07-17-2016 05:39 PM

The expression…”As hard as the back of God’s head” is applicable to Jatoba. If you’re going to pre-drill make sure to go all the way down/in as it will repel screws…love the cost and the color though..cheers and great projects.

-- Quando Omni Flunkus Moritati

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rwe2156

2200 posts in 948 days


#8 posted 07-17-2016 06:45 PM

Janka scale:

2820 Jatoba
1820 Hickory

-- Everything is a prototype thats why its one of a kind!!

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Aidan1211

189 posts in 293 days


#9 posted 07-21-2016 12:06 PM

I did an entire lobby a few years back outta that stuff and you ain’t kidding its darn hard. What I ended up doing was using a forstner bit to make the initial hole and chased it with the mortiser, still wasn’t easy but it was doable at that point. hope that helps.

-- its better to plan on the task at hand than actually doing it........ You look smarter.

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jfoobar

39 posts in 798 days


#10 posted 07-21-2016 12:42 PM

Just turned an 18” Jatoba platter (also starting from 8/4). My table saw definitely struggled more than usual cutting out the blank and the finished product is quite heavy indeed but it glued and sanded well and, if the color it displayed while wet with sanding sealer is any indication, it is going to be mighty pretty with finish on it.

Actually, I remember the part that really highlighted how hard it is. I use a DeWalt electric screwdriver (DW920) to screw faceplate screws in and have done so probably a hundred times by now in many different woods. This is the first time that it was not powerful enough to sink most of the screws, even with a fresh battery. Had to dig out the corded drill to sink several of them all the way.

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CharlesA

3025 posts in 1265 days


#11 posted 07-21-2016 12:53 PM

I think the only first-quality screws I’ve ever snapped were in Jatoba.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View MadMark's profile

MadMark

978 posts in 920 days


#12 posted 07-21-2016 03:18 PM

Jatoba is so hard I use machine screws after drilling and tapping. I was tapping a 6-32 screw hole when the tap snapped off flush! Now I admit I was dry tapping w/o cutting oil, but still its just wood, no?

M

-- Madmark - Madmark2150@yahoo.com Wiretreefarm.com

View zwwizard's profile

zwwizard

206 posts in 3176 days


#13 posted 07-21-2016 03:31 PM

Here’s a pen chest nI made out of Jatoba, A lot of sweet and tears, but the customer liked it and his wife loved it. And that what counts.

http://www.picturetrail.com/sfx/album/view/502889

-- Richard http://www.PictureTrail.com/gallery/view?username=thewizz

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jfoobar

39 posts in 798 days


#14 posted 07-21-2016 05:20 PM

Yeah, come to think of it, I did snap one of the screws off. They were Kreg pocket hole screws, so pretty decent screws. I’ve had the same box of 100 of these for years now and I think I’ve only ever broken one other one and maybe tossed two more due to the heads starting to strip out a little.

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CharlesA

3025 posts in 1265 days


#15 posted 07-21-2016 05:29 PM

Here are the jotaba pieces I was working on. The first is a 3 way lap joint I did on a baptismal font. I really liked the way it came out.

Here are some pics of a shaker side table I made. The pics aren’t very good so I never posted it as a project.


-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

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