Author Topic: Speed Test  (Read 338 times)

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Offline dpjones

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Re: Speed Test
« Reply #10 on: January 18, 2018, 12:15:05 pm »
That was what I was thinking, running hot. That 660 popup piston got me thinking  but I probably got the power I think better filing

I keep trying square filling but don't quite get it yet, it's ok but not what it should be and no one around here that I know of sharpens it

Offline HolmenTree

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Re: Speed Test
« Reply #11 on: January 18, 2018, 01:48:59 pm »
That was what I was thinking, running hot. That 660 popup piston got me thinking  but I probably got the power I think better filing

I keep trying square filling but don't quite get it yet, it's ok but not what it should be and no one around here that I know of sharpens it
I start off with a  new loop of square ground .404 chisel bit.The factory 15 degree top plate angle is close enough for milling.
I can go quite a while before I notice it dulling, holds a better edge and faster  from what I'm finding compared to my round filed chain.
Mind you I'm really fussy about keep the wood clean so I don't dull the chain as fast.

I can touch up the cutter's on the Alaskan mill with the flat chisel bit file free hand not too bad.  But after about 3 touchups the angles start to go wonky. Then I gotta switch chains, I then have to file the wonky cutters in my shop in the bench vise then I get the angles back.

I've heard of a few guys on the west coast who have success milling with square ground but one grinds his loops and switches them out. Other guy files free hand.
Making a living with a saw since age 16.

Offline mdavlee .

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Re: Speed Test
« Reply #12 on: January 18, 2018, 02:50:02 pm »
I free hand file on the mill square. I've not had a problem with sane work saw compression on a mill. 200 lbs or less and they do fine.

Offline dpjones

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Re: Speed Test
« Reply #13 on: January 18, 2018, 04:07:15 pm »
Right now I only have a square chain for  a 20" and 28" the 28 bar is wore out and the 20 is too short. I may order me a couple new 24" loops and give it try, I can sharpen it fair I guess, but just ain't used to it. Very Slow.

I may be better off with the compression I got, just turned 61, mind is 22, body is 80 something. Still kickin better than some of my old friends

Holmentree, I don't yet know names, I'm David BTW, .404 you say, my two 660's are 3/8, would it do better changed to .404? and I'm talkin about for milling now, I'm not a logger, just trying to keep up my property best I can, take out the dying(southern pine beetles I think) I may loose this battle, it ain't lookin good

Thanks a lot, Ya'll have answered my questions and then some.
Much Appreciated.
DJ

Offline HolmenTree

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Re: Speed Test
« Reply #14 on: January 18, 2018, 05:09:19 pm »
Good to meet you David! I'm Willard. I'm turning 60 this Sunday I'm right behind you and good points about the 22 mind and 80 something body Hahaha.

I'm running. 404 on my 395XP-36" and 090AV-36" with a 36" Alaskan mill.
I recommend nothing bigger than 3/8" on a 066/660.

.404 is more durable carries more oil, holds a better edge. But biggest thing it doesn't have stretch problems on the 36" mill like a 3/8" has.

I have to rephrase my last comment about square chisel bit holding a better edge than round filed.
A edge is a edge they round over, but the superior double sided square filed corner is so efficient that even when dulled it still cuts better then a equally  dulled round filed chain.
But having said all that, a square filed edge is flat like a planer knife or hand chisel, makes a strong taper to a keen edge.
A round filed edge is concave and a weaker edge.....

Now to my wonky angles. Everyone knows with a bar/chain mounted in a Alaskan mill you can only file the cutter's from the sprocket cover side of the bar.
You file the left hand cutters normally but the right hand cutters have to be filed downwards into the cutter like you do with a square file.
So I can square file my right hand cutters Ok but on the left cutters the square file has to move upwards like a round file but with a lot more downwards lowering of the file handle.

I saw professional timber fallers square file their falling saws exactly this way and it works fine, just takes practice.
But of course with this filing method the left hand cutters will have a burred edge. Nothing a little piece of hardwood can't scrape off.
Making a living with a saw since age 16.

Offline dpjones

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Re: Speed Test
« Reply #15 on: January 18, 2018, 06:00:03 pm »
OK, stick with 3/8 on my 660 but I'll get some sq. chain, and I got to get a 36" mill and bar for some of the next trees I cut down. My 24 mill will only cut about 18"

Didn't know  the Husky 395 was that more powerful than the 660.

Good to meet you Willard, you and Mdavlee have been a big help to me on this milling.
And others too.

Many Thanks


Offline mdavlee .

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Re: Speed Test
« Reply #16 on: January 18, 2018, 06:38:40 pm »
I sharpen near the tip on my mill. I don't have the nose protector piece on there in the way. I set with the saw on the piece I'm milling with the tip in front and file both sides right there. It's easier to file square to me on there than round.

Best I remember when I tested semi chisel and square it was around 35-40% difference in cut speed.

I'm Mike
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Offline dpjones

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Re: Speed Test
« Reply #17 on: January 20, 2018, 04:27:38 pm »
Thanks Mike,
That cut speed is a big difference. I got to get some sq. chain and a 36" bar and mill or extend mine. I can only cut about 18" slab on this 24" mill, if I adjust farther out towards the sprocket it binds up and won't turn.

I'm going to get some sq chain and do what both of you are telling me.
Thanks again

Offline mdavlee .

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Re: Speed Test
« Reply #18 on: January 20, 2018, 08:15:54 pm »
Yeah it was a huge difference in wearing me out too. I could cut a few more slabs in the same time and amount of fuel.

 

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