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Author Topic: Tracking Blade History  (Read 1070 times)

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Offline Jjoness4

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Tracking Blade History
« on: February 08, 2018, 01:58:47 PM »
Does anybody have a method for tracking blade history.  I saw a limited amount compared to many on the FF.  I have 60 blades in inventory, 30 new in box, 15 packed and ready for resharp, 10 being accumulated for resharp, 3 not capable of being sharpened (missing too many teeth), 1 broken and one on the saw.  I have thought about a peg board with number cards each representing a blade somewhere in its life cycle.  I am just curious as to how blades fare in their trek toward the scrap metal pile.  Number of resharpenings has to be somewhat important.  Would stenciling a blade be advisable or would it potentially create a weak spot or fatigue point.  Since most blade inventories are worth probably $1000 to $1500 is this worth it.  K
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Offline Chuck White

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Re: Tracking Blade History
« Reply #1 on: February 08, 2018, 03:06:00 PM »
I track my blade history by marking them with a hand-held engraver!

I engrave a vertical mark on the blade each time I sharpen it, then when there are 4 lines, I put a diagonal across them the next time I sharpen them to indicate the 5th sharpening!

Using this marking system, I have never seen or had any issues!

~Chuck~
Retired USAF (1989), Retired School Bus Driver (2012), and now a Mobile Sawyer
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Basic mechanical skills are all that's required to maintain the Wood-Mizer.
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Offline SawyerTed

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Re: Tracking Blade History
« Reply #2 on: February 08, 2018, 03:20:06 PM »
I track my blade history by marking them with a hand-held engraver!

I engrave a vertical mark on the blade each time I sharpen it, then when there are 4 lines, I put a diagonal across them the next time I sharpen them to indicate the 5th sharpening!

Using this marking system, I have never seen or had any issues!

I've not even sawn my first log yet and the OP's question has been on my mind.  The idea of engraving some way crossed my mind as well.  It is good to know that engraving small indicators of blade use/age doesn't cause issues.

Do you engrave the inside or outside of the blade?
Woodmizer LT35HD25, Kubota MX5100, IH McCormick Farmall 140, Granberg Alaskan Chainsaw Mill, Husqvarna 372XP, Husqvarna 455 Rancher

Offline terrifictimbersllc

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Re: Tracking Blade History
« Reply #3 on: February 08, 2018, 04:03:38 PM »
If you wanted to track blades individually you could engrave a serial number at the weld and keep the blade history in a notebook. 

I can pretty much understand a blade's sharpening history by measuring its width.  I measure this width every time a blade goes on the sharpener.

For example, from gullet to back,  my 4/32 1-1/4" WM double hard blades start out at 1.006 inches give or take. My  7/34 1-1/4" blades start at 0.98 inches.  It's been a while but I think 9/29 blades start out at 1.00 inches.

My sharpenings take off between 0.006-0.010 inches per pass. Half used blades are around 0.95-0.96".   Well-worn blades are down to about 0.90 inches gullet to back.  At 0.92,  I don't respect a blade's potential much longer and the littlest excuse will suffice to put it in the scrap pile.
DJ Hoover, Terrific Timbers LLC,  Mystic CT   2001 WM LT40SHDD (42HP Kubota, Accuset2, FAO's, Lubemizer, debarker, hydraulics everywhere), Peterson WPF 10-30 with chain slabber. Logrite fetching arch, WM BMS250 sharpener/BMT250 setter.

Offline POSTON WIDEHEAD

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Re: Tracking Blade History
« Reply #4 on: February 08, 2018, 06:14:22 PM »
I know this may not sound right to some but for me tracking a blade is a waste of time in my business.
My objective is to get good lumber.
I use a blade until it just begins to get dull and then put on a new resharp or brand new blade depending on what I am sawing.
I just keep sending them back to get resharpened or until they break and are replaced with a new blade by Woodmizer.
This is just my system.  :) But tracking a blade does sound interesting......I'm a hunter.  fudd-smiley
The older I get I wish my body could Re-Gen.

Offline Chuck White

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Re: Tracking Blade History
« Reply #5 on: February 08, 2018, 06:38:09 PM »
ST; I mark them just before I start the sharpener so, they're marked on the outside!

TT; Reading the sn, then looking it up, then measuring it seems like a waste of time to me, why not just mark them and be done with it!

PW; It can make a difference if you sharpen your own or send them out, either way, I would still mark mine so that I would have a good idea of how many bf have been sawn with that particular blade, and how many times it's been sharpened!

I sharpen my own and sometimes I only get one or two sharpenings (I sharpen lightly) per blade, but average 10-12 sharpenings, my most sharpenings per blade was 22!
~Chuck~
Retired USAF (1989), Retired School Bus Driver (2012), and now a Mobile Sawyer
1995 Wood-Mizer LT40HDG2425 Kohler - Shingle & LapSider, Cooks Cat Claw Sharpener, 4-foot Logrite cant hook.
Basic mechanical skills are all that's required to maintain the Wood-Mizer.
I LOVE MY SAWMILL

Offline Tom the Sawyer

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Re: Tracking Blade History
« Reply #6 on: February 08, 2018, 07:52:36 PM »
I cycle 30-45 blades in rotation.  When I get down to 30, I'll open a new box.  I track my blades in a small database.  I engrave a serial number on each blade and track brand, model, board footage, performance issues if any (wave, nails, etc.), sharpenings, hook angle, and set.
 
When I started out, I used 1 brand and turned them in for sharpening.  When circumstances dictated that I needed to be responsible for my own sharpening and setting, it opened up the possibility of trying different brands and styles of blades. 

There were so many conflicting, and perhaps biased, opinions about which blade was "best", that I figured tracking my blade performance would let me find the "best" for my operation.  I am more comfortable with data than with anecdotes and memory, so a database made sense for me.

I have tried about 8 brands, and both 7 and 10 hook angles.  Kasco 7 smiley_clapping
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Offline dgdrls

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Re: Tracking Blade History
« Reply #7 on: February 08, 2018, 08:08:13 PM »
I tip my hat to you sawyers who manage 30-45 bands,

I have 4 blades for my Lucas
I'm at the point one needs a re-tip and will get tune just to be certain,
It will probably go out this spring.
One on the mill two on on stand-by.
The carbides tell the story quick and easy.


D

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Re: Tracking Blade History
« Reply #8 on: February 08, 2018, 08:50:53 PM »
I have never seen the value to me for tracking blades so I am with PW.  It matters not to me how many times that they get resharpened.  I send them to Wood-Mizer Resharp when they get dull and always get a full box back because they replace any rejected blade at a discount.  I have about 50-60 blades in rotation.
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Offline Dave Shepard

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Re: Tracking Blade History
« Reply #9 on: February 08, 2018, 08:59:42 PM »
WoodMizer blades all have numbers etched in them. A couple feet one way or the other from the weld.
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Offline POSTON WIDEHEAD

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Re: Tracking Blade History
« Reply #10 on: February 08, 2018, 09:07:53 PM »
I have about 50-60 blades in rotation.

Thats a lot of sawmills.  :D
The older I get I wish my body could Re-Gen.

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Re: Tracking Blade History
« Reply #11 on: February 08, 2018, 09:11:36 PM »
Sometimes I feel like I even rotate.   smiley_dizzy
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Re: Tracking Blade History
« Reply #12 on: February 08, 2018, 09:17:32 PM »
Sometimes I feel like I even rotate.   smiley_dizzy

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Offline JB Griffin

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Re: Tracking Blade History
« Reply #13 on: February 08, 2018, 09:21:21 PM »
WoodMizer blades all have numbers etched in them. A couple feet one way or the other from the weld.

Not all of them do. My boss bought 60 2" wm turbo 7s  in the silvertip stock at one time, only one had a serial number.
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Offline SawyerTed

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Re: Tracking Blade History
« Reply #14 on: February 08, 2018, 09:46:00 PM »
Maybe us novices are making it more complicated than it really is.  It just seems that keeping up with blade condition would be a focus of the operation.  After all the blades are where the action/production/profit revolve. If the blade isn't cutting the operation isn't making lumber or profit. 

It may be easier than we are thinking?
Woodmizer LT35HD25, Kubota MX5100, IH McCormick Farmall 140, Granberg Alaskan Chainsaw Mill, Husqvarna 372XP, Husqvarna 455 Rancher

Offline POSTON WIDEHEAD

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Re: Tracking Blade History
« Reply #15 on: February 08, 2018, 09:58:30 PM »
Maybe us novices are making it more complicated than it really is.  It just seems that keeping up with blade condition would be a focus of the operation.  After all the blades are where the action/production/profit revolve. If the blade isn't cutting the operation isn't making lumber or profit. 

It may be easier than we are thinking?

the-read my reply #4  :)
The older I get I wish my body could Re-Gen.

Offline terrifictimbersllc

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Re: Tracking Blade History
« Reply #16 on: February 08, 2018, 09:59:11 PM »
TT; Reading the sn, then looking it up, then measuring it seems like a waste of time to me, why not just mark them and be done with it!
Sounded to me like he wanted to track other things than just how many times it was sharpened, and this was just a suggestion as to how to track anything he wanted. I wasnt suggesting he also measure it.
DJ Hoover, Terrific Timbers LLC,  Mystic CT   2001 WM LT40SHDD (42HP Kubota, Accuset2, FAO's, Lubemizer, debarker, hydraulics everywhere), Peterson WPF 10-30 with chain slabber. Logrite fetching arch, WM BMS250 sharpener/BMT250 setter.

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Re: Tracking Blade History
« Reply #17 on: February 09, 2018, 05:57:36 AM »
If the blade isn't cutting the operation isn't making lumber or profit.
Very true but blades are an expendable item.  If the blade isn't cutting I take it off and put a fresh one on.  If it needs resharpening, I send it back.  If it is damaged in any way, I discard it. 

(If you resharpen then insert your operation where I send it back.)
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Re: Tracking Blade History
« Reply #18 on: February 09, 2018, 07:30:48 AM »
Like some others, I don't track mine.  They either cut or they don't. If they don't, I resharpen them.  I will run and resharpen them until they break. I examine the break and see if it's in the gullet or the back edge.  That will tell me how my mill is running and if I got the most of the band.
 

 
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Re: Tracking Blade History
« Reply #19 on: February 09, 2018, 07:57:30 AM »
I think I'm one of the few that runs a blade and it stays on the mill till it breaks.
I made a sharpener but I can sharpen while it's on the mill faster than taking it
off and taking it to the machine. Works for me.
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