NewGrinderWheel@TCIA

saw this wheel at tci and thought is looked pretty neat. I might just buy one and put it on my machine just for the novelty of it!
 

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Frans , whats the advantage of this new wheel ?

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Well... like Mark says I sure DO like shiny new toys /forum/images/graemlins/grin.gif

But the folks at the show have pictures of this 'see through' grinder wheel. You can see through to the other side of the wheel while it is cutting. so if you are cutting near a wall or curb or something you can stop the swing before hitting the object.
frans
 
I would think removing mass from the wheel would reduce the overall power/torque somewhat.
 
It looks like the shape of the new wheel has the varying cutter tooth depth built in.

This wheel is all about being able to see throught it while it is turning. It should be like looking through a running fan. The photos have been going around for a couple of years.
 
If the only "great" feature of this new grinder wheel is that you can see through it...Woo HOO! What a waste of metal. Sure looks nice but if it doesn't have anything else going for it i can't see anyone forking out the extra bucks for it.
Someone must not have done their homework.
 
I'm not promoting this wheel but a cutter wheel that can be seen through is an advancement.

Maybe not worth the money....but an advancement none the less.
 
frans,

seven hundred dollars worth of unneeded expense is alot. Sure thats great u can see through the thing. But i can't remember the last time i was out grinding and thought to myself: geee---I sure wish i could see throught the cutter wheel. Rather the thought of it possibly cutting a little faster did come to mind.
If the only added bennie is the see through i think you find this item to be a pretty low seller.
 
OK, lets get down to the brass tacks here...I'm no engineer and I surely have no clue what the specs and claims are for this new wheel. But, lets consider the following.

A) Being able to see "through" is a definite plus.
B) Less mass on the cutting wheel can translate into more HP being transferred to the cutting parts.
C) Less mass reduces the flywheel effect, this may be good or bad...good if you take too big a bite and the system stalls because there is less momentum in the wheel to transfer abruptly back into the machine. Bad if you routinely hogg the wheel into the stump and rely on that momentum to keep the wheel moving.
D)less mass may mean higher cutting RPM which may translate into faster cutting.
E) Machining and Casting (or forging) of the wheel may result in a stronger more effective power transmitter.
F) a Machined wheel like this can open the door for experimentation with other metals and alloys.


I can see a number of reasons that lighter yet stronger would be a tree-mendous bonus. Of course what remains to be seen is if this is indeed stronger, and if Lighter actually performs as well.

Is it worth the cost? I dunno...

How many people think the Lock-Jack is a waste of Aluminum? How many can't live without it?

Were the first lightweight chainsaws worth the cost?

Many innovations fail because they are truly junk, or they come on the scene too early. Maybe this one needs to be in the field for a while and some risk-takers need to give it a work out.

Just my 2 cents...
 
i guess that it's hard to reinvent the wheel/forum/images/graemlins/laughing.gif I wonder if this wheel will wear out faster than a solid one? it seams like if you let your teeth wear too low, then you might have a chance of damaging your wheel... less chance of having debris damage a solid wheel
 
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do you think with the holes in it , it fling more debris ?.

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Ahhh, no Greg. It would not fling more debri as the wheel cutting surface is the same as any solid wheel (even tho it looks different). Debri flinging is dependant on the design of the grinder itself, not the cutter wheel. the cutter guards, the angle of the cutter wheel, all contribute to debri flying around, or the containment of the flying debri.

this new cutter wheel has one design feature that may, or may not, help with grinding out stumps. that design is the see-through feature. No strength is lost through the cutting out of all that metal in the cutter wheel.
Frans
 
The tungsten carbide tip that goes on the end of one of those 0.5" x 0.5" teeth is the same as the tungsten carbide tip that goes on a Rayco Super tooth.

Yet the Rayco super tooth way out performs a 1/2" tooth.

The reason for this is more mass behind the tooth, a centre of gravity that is further away from the axle equates to far larger forces, centrifugal forces. Like swinging a hammer with a heavier head.

I think this new design has a similar affect, I think there will be more power behind the cutting tooth.

I also think that having slots and stuff will aid in clearing grindings away.

To me, the see thru part is a bonus of a better performing wheel.
 
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The reason for this is more mass behind the tooth, a centre of gravity that is further away from the axle equates to far larger forces, centrifugal forces. Like swinging a hammer with a heavier head.


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I was thinking that the heavier and stronger the tooth, the more impact to the grinder. Seems like we would want a weaker tooth so when hitting an immovable object like a rock, the tooth would provide a weak point and give way. This would reduce the shock loading to the grinder. After all if the tooth carbide breaks the tooth is no longer cutting so no matter how strong the body of the tooth is, it is still dependant on the carbide to do the cutting.
I was thinking of putting the weaker teeth on the grinder to help with reducing the shock loading. Sort of like a 'fusible link' in an electric curcuit.
 

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