Chain talk

[Chainsaw Jim]

There's several techniques for sharpening chain teeth with different angles and types of files/grinders. Then there is raker height to maintain optimum running speeds, but what about filing methods for the sole purpose of clearing chips?

 

[Deets066]

There's several techniques for sharpening chain teeth with different angles and types of files/grinders. Then there is raker height to maintain optimum running speeds, but what about filing methods for the sole purpose of clearing chips?

 

[Deets066]

Front of the rakers aid in pulling the chips out too. Not entirely sure what the best method is for this? Straight vertical on the front of the raker or angled back like they come off the roll?

I'd guess vertical

 

[czar800]

I've got a experimental chain.... That I've used for testing different stuff on. (It's ugly)

I just run out of hours in the day to fit in all I need/want to accomplish.
I'll snap a few pictures..

 

[czar800]

 

[Stump Shot]

Front of the rakers aid in pulling the chips out too. Not entirely sure what the best method is for this? Straight vertical on the front of the raker or angled back like they come off the roll?

I'd guess vertical

You are on to something here I think. One of my fastest chains is an odd ball brand with the raker shaped like the old time ones were, straight up and down. not sweeping forward and swooping back.

 

[Guido Salvage]

This is the chain I am working on...

 

[czar800]

Sorry it's all dusty.... Kids are in bed and can't start the air compressor. Ive done a lot of different things to that old chain.

 

[czar800]

This is the chain I am working on...

View attachment 32641

Feed conveyor?

 

[Stump Shot]

IMHO Not only does the removal of the gullet (which is the first thing needed) matter, but the shape and smoothness of it as well. Think of it like driving a car down a road, do you want to drive on the corduroy road or the paved one? When I really want a fast chain, I use a smooth diamond file after all sharpening and shaping is done to polish the gullet smooth. Figured that one out from talking with an old timer about sharpening old hand saws and what they did to make them cut.

 

[skippy]

Practice makes perfect and I'm not there yet .

 

[jmssaws]

404 hit with a double bevel

 

[skippy]

I will say I have definitely improved !

 

[johnny5ny]

I seem to remember a discussion a while back (on AS maybe?) where mdavlee talked about the importance of cleaning the gullets each sharpening. Hope he chimes in.
I don't spend a ton of time on them, but I do hit the gullets after each cutter. It makes sense that effect chip removal.

 

[Stump Shot]

Practice makes perfect and I'm not there yet .

I'm still experimenting and learning new things, would be boring otherwise. What makes this subject so interesting is you can not see it at work, first you have to imagine what it is doing, figure something better, then make that a reality.

 

[Stump Shot]

404 hit with a double bevel View attachment 32646

Very interesting.

 

[jmssaws]

Some 3/8

 

[jmssaws]

Some 3/8View attachment 32647

This one cuts pretty good

 

[jmssaws]

 

[skippy]

I'm still experimenting and learning new things, would be boring otherwise. What makes this subject so interesting is you can not see it at work, first you have to imagine what it is doing, figure something better, then make that a reality.

Actually when you complete a chain . You can see how well it works . Remember your angles . So you know which angles to change for soft wood or hard woods .
Or ported saws to stock saws. Chain sharpening does a lot for quicker cutting.