New chain vs sharpened.

[Eskimo]

- it helps if you know what you are trying to achieve.

Nothing snarky there! What you wrote there is the simple truth, and it applies to a lot of things.

 

[HarleyT]

Nothing snarky there! What you wrote there is the simple truth, and it applies to a lot of things.

Yes, when trying to teach others about chain sharpening, I like visual aids.
Oregon once made large "chisel" models out of wood for display.
I tried to order some of them, for instructional purposes, but they were charging a fortune for them.

 

[Philbert]

Oregon once made large "chisel" models out of wood for display.

These are about $110 on eBay. They used to have some PowerSharp versions, and a section of linked chain in a suitcase that sold for a bit more. I have seen some STIHL versions too.

Since I am 'frugal', I use several links of Oregon 11H harvester chain (3/4" pitch) which looks just like 3/8 semi-chisel saw chain, but about twice as big in every dimension. About a buck a link at Bailey's.

Philbert

 

[HarleyT]

$13 shipping!!!

 

[HarleyT]

Yeah, paying that much just to try and educate ungrateful redneck arseholes about chain sharpening...........

My "inner-me" just screamed "NO"!!!!!!!

 

[Philbert]

(wait till you price the file that fits it!)

Philbert

 

[Eskimo]

Yes, when trying to teach others about chain sharpening, I like visual aids.
Oregon once made large "chisel" models out of wood for display.

Yeah, I love that sort of stuff.

I had a machine shop instructor who had maybe a 3" diameter drill bit to use as a visual aid when explaining sharpening.

The shop next door had a huge "teaching" vernier caliper on display.

 

[HarleyT]

I have found that a visual aid can explain volumes.

Kind of like me seeing my first dirty movie as a teen....

Cleared up a lot of things.....

Including my complexion!!

 

[HarleyT]

Cleared up a lot of things.....

Including my complexion!!

Get it???

 

[HarleyT]

Tough crowd....

 

[Huskitoter]

Those displays are big. I asked the sales guy to see the file that goes with it.

 

[Philbert]

I had a machine shop instructor who had maybe a 3" diameter drill bit to use as a visual aid when explaining sharpening.

People often find drill bits boring . . .

Stuff I use / made:
https://www.arboristsite.com/commun...to-teach-chainsaw-safety.287092/#post-5569890

Philbert

 

[69mach1]

The problem with using a grinder u are exposed to wheel wear so after a few grinds the wheel will wear different... not huge but will make a difference. When you file to sharpen the cutter opening stays the same. Like someone else said it is like fine tuning a motor the only real advantage of using a grinder is the cutters will be the same size and cut straight i have a cheap grinder and use it and a file every other sharping hope this helps... btw dont forget the rakers every time

 

[Skeans]

The problem with using a grinder u are exposed to wheel wear so after a few grinds the wheel will wear different... not huge but will make a difference. When you file to sharpen the cutter opening stays the same. Like someone else said it is like fine tuning a motor the only real advantage of using a grinder is the cutters will be the same size and cut straight i have a cheap grinder and use it and a file every other sharping hope this helps... btw dont forget the rakers every time

The more expensive grinders compensate for wheel wear, or you learn how to after a while. This is completely my thinking but a file is field tool if you choose to use one, a grinder you use to true up a chain at the end of the day when you check over all equipment.


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[CR888]

The more expensive grinders compensate for wheel wear, or you learn how to after a while. This is completely my thinking but a file is field tool if you choose to use one, a grinder you use to true up a chain at the end of the day when you check over all equipment.


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This ^^ Skeans post resonates with me. I love filing, files, chisel bit files, and grinders. But at the end of a work day when you have say 10+ chains to do a grinder will have you in the shower & sitting down for dinner. I thank my grinders for that.

 

[Philbert]

The problem with using a grinder u are exposed to wheel wear so after a few grinds the wheel will wear different...

One of my grinder 'tricks' is to dress the wheel lightly after almost every loop; this keeps exposing fresh abrasive to avoid burning. I adjust the wheel for each loop anyway, depending on wear, need, damage, etc. So wear difference, among cutters on a loop, should be negligible; certainly no more than the variation in filing from differences in hand pressure.

Philbert

 

[holeycow]

Question: how long does it take for an experienced grinderman to grind a chain for a 20” bar?

Take it off, set it up, grind it, put it back on ready to cut??

 

[hedge hog]

One of my grinder 'tricks' is to dress the wheel lightly after almost every loop; this keeps exposing fresh abrasive to avoid burning. I adjust the wheel for each loop anyway, depending on wear, need, damage, etc. So wear difference, among cutters on a loop, should be negligible; certainly no more than the variation in filing from differences in hand pressure.

Philbert

CBN


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[Philbert]

Question: how long does it take for an experienced grinderman to grind a chain for a 20” bar?
Take it off, set it up, grind it, put it back on ready to cut??

I swap out chains, then grind them in batches. Don't usually do it one-at-a-time (except during Hurricane Katrina, where I was running off a generator in the road just to keep up!).

Otherwise, 8.93 seconds to swap, like this guy:


Philbert

 

[Philbert]

Or this one, in the field:



Philbert