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The Slippery Slope #9: Itchin to get started saw sharpening!

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Blog entry by chrisstef posted 420 days ago 1289 reads 0 times favorited 72 comments Add to Favorites Watch
« Part 8: Saw Sharpening! Preppin your weapons ... Part 9 of The Slippery Slope series Part 10: Saw Files, 75% delivery, and more waiting. »

Last episode we talked about what I needed to get going sharpening my own handsaws. Todays is the latest progress over the last week or so. Im not a writer, im a poet, i dont write blogs, so ya know it. In other words im gonna bounce around a little bit making virtually no sense chronologically so bear(bare? I hate homonyms) with me.

Ive got my saw vice and jointing file holder all made up. My Lee Valley order has left Hartford this mornin at 7:02 but yet to arrive and the saw file order is out until next week. Crap. Like all impatient woodworkers I had to do somethin in the shop, so i jointed the 4 1/2 ppi shurley & Dietrich rip saw to calm my nerves.

Shinahs. Big ones (me), little ones(widdle), and some slighty misshapen (tony). Id say i took off a 1/16?

But now i find myself at a bit of a crossroad in the very early stages of this story. The tooth line has some decrease taper to it toward the handle. We’re talkin 1/8” over the 26” in length.

My saw vice is level and if i place a 24” level, with pressure on the toe, the saw is level for about 10-12” then dives down.

At the toe:

At the heel:

So do i level the whole thing out again or work with what ive got and treat this as a test saw and sharpen away? Cha’ll think?

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty



72 comments so far

View tsangell's profile

tsangell

209 posts in 1327 days


#1 posted 420 days ago

Could the saw be “breasted?” Does the toothline look straight, or perhaps slightly crowned towards the center? That should be fine for a hand saw.

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#2 posted 420 days ago

Ya know ts, i do briefly recall reading something about “breasting”, why it didnt stick with such a fine name, i dunno. Im gonna go and check that out immediately.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View widdle's profile

widdle

1395 posts in 1633 days


#3 posted 420 days ago

What ? This may effect the precision of your dovetails greatly…Soo here is what i would do…Grab your cajones, borrow your wives jeep..throw the 6x’s in there..find someone with big bandsaw an jointer…rough it to size….on the way home pick up some glue, a shot of espresso and some snacks…sticker the lumber…

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#4 posted 420 days ago

No breasting to be seen.

Here’s the square at the middle of the plate.

Widdle – this weekend. I promise. Resaw. Mas cojones. I guess youre right about the dovetails. That 1/8” aint gonna mean squat ripping lumber.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View widdle's profile

widdle

1395 posts in 1633 days


#5 posted 420 days ago

I know nothing about sharpening, but as i mentioned a week or two ago , i have guy in the neighbor hood that is a well thought of saw guy (?) ..soo i take my stuff to him…The 26” 6 point d-8 has like a 1/4” belly in it..fwiw…Are they supposed to be straight ?

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#6 posted 420 days ago

Grr. Half post. Deleted

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#7 posted 420 days ago

Supposed to be straight? Yes, but your dovetail remark got me thinkin. I think in a dovetail, tenon, or carcass saw, where the bottom of the kerf matters, a straight tooth line is going to be important. A wavy tooth line wont be as efficient because you wont use all the teeth. A tapered or sloping tooth line should allow you to use all the teeth. I think.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View terryR's profile

terryR

3053 posts in 942 days


#8 posted 420 days ago

Stef, are the teeth in a straight line along the taper? Or is the toothline ‘rounded’?

Anxiously awaiting Andy’s diagnosis…but I bet the answer involves the most work. :(

Dovetail attempt no.3 has 2 tails…now in glue and clamps. I think I can get the hang of these DT’s!

-- tr ...see one, do one, teach one...

View theoldfart's profile

theoldfart

4049 posts in 1085 days


#9 posted 420 days ago

Stef, complete the sharpening process. Drive it so to speak for a while then re-evaluate. In my experience the more issues you try to resolve at once, the harder it is to trouble shoot.

-- "Aged flatus, I heard that some one has already blown out your mortise." THE Surgeon ……………………………………. Kevin

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#10 posted 420 days ago

They seem to be in a straight line Terry. They dont really wave around but they sure taper toward the heel.

I scribed the pattern on this piece of trim. Might be hard to see but it falls off towards the end.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#11 posted 420 days ago

I think im on board with ya Kevin. The heel of the saw does little work and i certainly dont need to compound my problems. The gullets all line up from front to back which is a good thing.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View terryR's profile

terryR

3053 posts in 942 days


#12 posted 420 days ago

Bud, you KNOW I am not an expert, but I kinda go with Kevin. If the row is straight, sharpen them.

...Of course, you hopefully won’t have the files until Andy can vote. :)

-- tr ...see one, do one, teach one...

View Brit's profile

Brit

5127 posts in 1476 days


#13 posted 420 days ago

Widdle – Yes D8s are breasted saws, so should be slightly convex along their length. Breasting or crowning as some people call it helps to keep the teeth in contact with the wood as the saw is pushed forward, at least that’s the theory. Having used saws with and without breasting, I think it is more marketing hype than anything else.

Stef – IMO you should get the toothline perfectly straight with your file holder before you progress to the shaping stage. You will find it easier and will have a greater chance of success if you concentrate on getting each stage right before progressing to the next stage. The action of using a file in a file holder to joint the teeth is similar to using a hand plane. Press down on the front at the start, equal pressure on the front and the back in the middle of the stroke and press down on the back at the end of the stroke.

Having said that, what you have to remember is that you are jointing an old saw and the toothline was probably far from straight before you started. Here is an example that someone posted today on another forum.

So it could be worse Stef. LOL.

Sometimes ( again just like when hand planing) you need to concentrate the file is a certain area and take some short strokes to knock it down to the height of the surrounding teeth. The thing to remember though is that you should never joint any area of the teeth so much that you lose your gullets. It is better to start shaping the teeth in that area which will give those teeth deeper gullets and then you can joint the teeth further until you can take full length strokes.

Whilst it is less critical to get the toothline perfectly straight on a 26” hand saw that it is on a backsaw, you might as well develop the skill on a hand saw and then it will easier to do on a back saw.

Apologies for the long reply.

-- Andy -- Old Chinese proverb say: If you think something can't be done, don't interrupt man who is doing it.

View chrisstef's profile

chrisstef

10697 posts in 1640 days


#14 posted 420 days ago

No apologies required Andy. Sage advice. “If its worth doin, its worth doin right”. I got a 6 rack of 2x IPA’s and no where to be.

-- "there aren’t many hand tools as awe-inspiring as the #8 jointer. I mean, it just reeks of cast iron heft and hubris" - Smitty

View widdle's profile

widdle

1395 posts in 1633 days


#15 posted 420 days ago

brtit..Thanks..makes sense

Stef..Didn’t realize this was a series of blogs with back story …I’ll play nice…interesting stuf..

I changed my mind..

showing 1 through 15 of 72 comments

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