Chainsaw grinder questions, tips, tricks, and pics!!!!

[huskihl]

I saw one like it on an old "Roadrunner" cartoon!! The coyote didn't fare too well.

God I miss those days. Real cartoons

 

[Fish]

Sadly, they were too rascist and violent.....

 

[bill saf]

Anyone ever seen one of these before? It's for sale local.

That was for doing saw blades in a sharpening shop from 8" to 30" you could at the time also get attachments for saw chin and bansaw blades if you can find them

 

[Philbert]

Bought the Kool-Aid, but . . .

I have been sharpening with a chain grinder for a number of years. Learned a lot of things; still open to learning more, Got pretty comfortable using conventional ('vitrified') aluminum oxide (AO) wheels, and with 'resinoid' wheels. But read many enthusiastic posts about CBN wheels, so finally broke down and bought a set of 1/8" and 3/16" wheels for my Oregon 511A grinder from Diamond Wheel, Inc. Used them on a few loops, and to twist a quote from 'Thelma & Louise', still haven't found out 'what all the shouting is about'.

Used them side-by-side with 'pink', 'brown', and resinoid wheels on similar chains, switching back-and-forth between loops. They definitely produce less dust than conventional wheels, and don't produce the smell that resinoid wheels give off. But they were not any faster, and the finish was not any better IMO.

Specifically, I am having a problem where they are more likely to raise the chrome plating right at the edge. I can dress the AO wheels if they do this, but not sure what to do with these CBN wheels. Is there a 'break-in' period? Do I need to dress them with that white stick when new? I have a call in to the sales office, but would be interested to hear from others if they have or have 'solved' this problem.

Philbert

 

[Douglas Ostrander]

I think the new cbn wheels are more aggressive. My newest wheel gets the cutters to hot. My other three wheels didn't. Same part number. The kool aid was great. New batch. I have tried my new wheel on different grinders with the same results.

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[Moparmyway]

Bought the Kool-Aid, but . . .

I have been sharpening with a chain grinder for a number of years. Learned a lot of things; still open to learning more, Got pretty comfortable using conventional ('vitrified') aluminum oxide (AO) wheels, and with 'resinoid' wheels. But read many enthusiastic posts about CBN wheels, so finally broke down and bought a set of 1/8" and 3/16" wheels for my Oregon 511A grinder from Diamond Wheel, Inc. Used them on a few loops, and to twist a quote from 'Thelma & Louise', still haven't found out 'what all the shouting is about'.

Used them side-by-side with 'pink', 'brown', and resinoid wheels on similar chains, switching back-and-forth between loops. They definitely produce less dust than conventional wheels, and don't produce the smell that resinoid wheels give off. But they were not any faster, and the finish was not any better IMO.

Specifically, I am having a problem where they are more likely to raise the chrome plating right at the edge. I can dress the AO wheels if they do this, but not sure what to do with these CBN wheels. Is there a 'break-in' period? Do I need to dress them with that white stick when new? I have a call in to the sales office, but would be interested to hear from others if they have or have 'solved' this problem.

Philbert

I cured it by installing a switch to reverse the direction my 511 spins. No more lifted chrome with the wheel spinning into the cutters from the outside

 

[huskihl]

Mitch Weber made a video on turning a 511 backwards with a drill and turning the switch on. It works on my 511 copy

 

[Philbert]

I cured it by installing a switch to reverse the direction my 511 spins. No more lifted chrome with the wheel spinning into the cutters from the outside

It's not lifting the chrome on the top plate mechanically by rotation; it is from overheating. The thing that I thought CBN wheels were supposed to be better at avoiding.

Spoke to the Diamond Wheel rep today; said to use 'less pressure' with CBN wheels. Says this is a common problem when guys switch from conventional, aluminum oxide wheels.

I thought that I had a velvet touch with these grinders, but will try again on a couple of loops that I have left to do.

Philbert

 

[Douglas Ostrander]

My newest cbn easily over heats the cutter. Was a little better after I ran the white stone over the wheel. I don't think it is sucking the heat out of the cutter when grinding. With the old wheels you have to be aggressive to over heat the cutter.

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[Homemade]

I assume you have a solid wheel. I do to. Other then slow and steady wins the race, I can’t give much advice.
I found this wheel from dinasaw might run cooler seeing how it’s segmented.

http://www.dinasaw.com.au/cyclone-abn-grinding-wheels/

They sell them three baileys


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[Moparmyway]

It's not lifting the chrome on the top plate mechanically by rotation; it is from overheating. The thing that I thought CBN wheels were supposed to be better at avoiding.

I cured that by adding my air cooler
I've switched over to the Loc-Line flexible stuff since these pictures.

 

[Philbert]

I cured that by adding my air cooler . . .

Just hooked up to a compressor?

Does not blow dust towards you?

Philbert

 

[Moparmyway]

Just hooked up to a compressor?

Does not blow dust towards you?

Philbert

I use just enough to cool the cutter, its a real small amount, dont even feel a breeze

**EDIT**
Hooked up to shop air Philbert, any compressor will do, even a tiny single cylinder hobby one

 

[Douglas Ostrander]

I cured that by adding my air cooler
I've switched over to the Loc-Line flexible stuff since these pictures.
View attachment 94808 View attachment 94809

Nice. Good idea. Wonder if a air sample pump will put out enough air to cool the cutter. I think they will do 10 liters a minute with 1/4 od line. Without the noise of the air compressor. I have a few sitting in the shop.

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[Philbert]

Did better on another batch of chains. But they were also a different brand (Rotary 'Copperhead' instead of STIHL). Not sure if it was that or my technique. Maybe some 'break in' of the wheels? phase of the moon?price of wheat on the futures market? I will continue to evaluate.

Philbert

 

[Khntr85]

Hey @Philbert been so busy I haven’t been on forums for a while!!!

Anyway I have been extremely anxious awaiting your opinions on the CBN wheels....I know you have been doing this for years and you do a GREAT job with the regular stone wheels.....

I do sometimes get the “burr”, I was all worked up about it at first, but after lots of cutting I don’t worry about it now...

As long as I am not burning the cutter, I can deal with some burr....I really thought about reversing the wheel on my Oregon, and probably will, just been to busy lately....

 

[Khntr85]

Oh and also I would like to know other peoples thoughts on this....


When you guys get flat out trashed out dull Chains do you use the CBN or the stone wheel....

I am still experimenting with it....when my CBN wheels were new I of course used the stone wheels on the horribly dull Chains and the CBN on the better ones and my Chains lol....

The last few times I got chains I got that were really bad, I just used the CBN....I personally found it faster to use the CBN....when you get 10-20 bad Chains, a lot of little things can add up....

But you can without a doubt still burn a chain with a CBN wheel if you take a big bite....

 

[Philbert]

Hey @Philbert been so busy I haven’t been on forums for a while!!!

Wondered where you were - not taking my CBN 'bait'!

I do sometimes get the “burr”, I was all worked up about it at first, but after lots of cutting I don’t worry about it now...

The 'burrs' ddon't bother me - they disappear as soon as the chain sees the wood. Heating the cutters and raising chrome are a different story - those are things that give grinders a bad rep.

When you guys get flat out trashed out dull Chains do you use the CBN or the stone wheel ....when my CBN wheels were new I of course used the stone wheels on the horribly dull Chains and the CBN on the better ones and my Chains lol....

I prefer the resinoid wheels for hogging off really rocked cutter edges.

Because I have tried a few different kinds of wheels, I have them to swap out. But I don't know if I would go buy them just for this purpose. Still, they are less expensive than the vitrified wheels, so a low cost thing to try, especially if added onto another order. And a good choice for guys having trouble 'burning' teeth with a vitrified wheel.

But you can without a doubt still burn a chain with a CBN wheel if you take a big bite....

Reduced risk of burning was my main interest in the CBN wheels. So far, I can grind faster with a freshly dressed AO/vitrified wheel. CBN advantage is still less dust generated.

No magic solutions - still a place for skill and experience!

Philbert

 

[Khntr85]

@Philbert I tell ya I have been so busy it’s just been crazy, life you know how it goes!!!

Yes you are excactly right, no magic solution, just anothe “tool” in the box really....

I will say I do really like the CBN and when I am doing my Chains i use them 9 out of 10 times...

In the end I guess it boils down to us poor souls that sharpen people Chains....we get the worst of the worst Chains from guys that tell us how to do it LOL.....if we could just get these guys to STOP cutting til the wood is burning, we would have it so much easier...

Glad to be back online for a bit lol, I have got ALOT of catching up to do!!!!

 

[Khntr85]

I think the new cbn wheels are more aggressive. My newest wheel gets the cutters to hot. My other three wheels didn't. Same part number. The kool aid was great. New batch. I have tried my new wheel on different grinders with the same results.

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Have you ever “worn” out a CBN wheel, or donyou just have different brands...