Square ground chain

[Rob D]

Well you certainly learn something new everyday! Cause I'd never heard of these square sharpened chiesels so thanks for the thread.

 

Ref milling I've started to look more and more into chains, angles and what does what and I still feel ignorant! Yet the more I look into it/use it the more you realise the chain is the chainsaw....

 

That link to the Madsen site is really good. I think perhaps the reason some of the threads get poor results ref chain is that a) it doesn't interest a lot of people but b) I think people may be afraid to comment as general knowledge on chains is poor.... After all it's our tool is the chainsaw - we should all be experts!

 

I've been using saws for 10 years and yet I still feel a novice as far as chains go... but trying to rectify this!!

 

 

 

 

 

[ScotClayShooter]

Its thought to be difficult to do and many CANT do it!

Ive always been decent with files etc so im hoping the learning curve wont be too tricky. If it is i will buy one of the ATOP guides mentioned earlier.

 

As I mentioed the files are expensive and the other problem is that the dont last very long as you more or less have to file from outside in so your pushing the chrome through the stroke insted of what happens when you round file from the inside out and the chrome just chips off.

 

Those pesky yanks that make Race chains grind off the layer of chrome as the metal below can be made sharper than the layer of chrome will allow.

 

Me I dont need ported saws or fast chains but its a hobby of mine trying to outcut my mate by huge margins:001_smile:

[rbtree]

The ATOP system is different...uses a goofy file, not the normal file for square filed full chisel.

 

I've been square filing my 3/8th pitch chains for years now. I'm finally fairly good at it. Finally got some good files. The company will also renew dull files for about $1 each, and can renew a file several times....

 

Someone claimed the chains are different. They're not, only difference is the grind. Appx 8% faster than round ground.

 

Round ground can be made a bit faster by filing deeper into the gullet, but that produces a sharper angled point, which will dull quicker. I find that square filed chain stays sharp plenty long.

 

I also use full comp, semi-skip, and full skip chain, depending on bar lengths.

[swe#kipp]

The ATOP system is different...uses a goofy file, not the normal file for square filed full chisel.

 

I've been square filing my 3/8th pitch chains for years now. I'm finally fairly good at it. Finally got some good files. The company will also renew dull files for about $1 each, and can renew a file several times....

 

Someone claimed the chains are different. They're not, only difference is the grind. Appx 8% faster than round ground.

 

Round ground can be made a bit faster by filing deeper into the gullet, but that produces a sharper angled point, which will dull quicker. I find that square filed chain stays sharp plenty long.

 

I also use full comp, semi-skip, and full skip chain, depending on bar lengths.

 

 

The new Atop True square use a real "square file" and work very nice I think

[ScotClayShooter]

Oregon quote 15% faster and thats with their crappy angles!

[Al Smith]

Square ground is little faster than round ground .Now weather it's worth the effort is best left up to the user .

 

I personally only use square on my version of a race chain as I find round filed chisel works just fine for me otherwise .

 

It takes about 5 minutes for me to touch up a standard round filed 20 inch loop .Were it square thet would be half an hour .

 

Factory ground square is more used in the Pacific north west in the soft woods and not so much in other portions of the US and Canada where hardwoods are the predominent species .

[swe#kipp]

After i got the Atop guide i run square on all 3/8 chains except were i know it is iron and junk in the trees !

For bore cutting, bucking and felling the square is superior in smoothness and speed in my opinion !!

If you get the chance to try a sharp square filed/grinded chain then do it, it's very "fun" to work with

[ScotClayShooter]

Hey Al you cant just claim to make race chain!

 

Dont you know theres only 2 people on the planet that can make that LOL:001_tt2:

[ScotClayShooter]

After i got the Atop guide i run square on all 3/8 chains except were i know it is iron and junk in the trees !

For bore cutting, bucking and felling the square is superior in smoothness and speed in my opinion !!

If you get the chance to try a sharp square filed/grinded chain then do it, it's very "fun" to work with

 

You ever tried Als suggestion of grinding a little off the back of the cutter to improve boring?

 

So are those ATOP guides actually on sale in Sweden or is it just the US and Canada?

[Al Smith]

Hey Al you cant just claim to make race chain!

 

Dont you know theres only 2 people on the planet that can make that LOL:001_tt2:

Well according to some perhaps but I doubt it .

 

Those pics are not my best endeaver BTW .I'll save those for a future time .