Best RPM for Fixed Spd Grinder/Belt Sander?

J

joeG26er

Joined
Mar 29, 2000
Messages
297
Well, looks like I will be getting a fixed speed grinder for now- what speed should I look for?

What speed should I stay away from?

What is the minimum horsepower I should get?

Thanks very much for any help.

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Joe:
I bought my Bader with the 6" and the 3" drive pulleys. I use mostly the 3". I find the speed too fast with the 6". 1 1/2 h.p. is the minimum you should consider and you really should get the 2 h.p. for the extra few dollars that it costs. I also bought a 1" drive pulley a week ago and can't wait to try it on the machine. I had wanted a variable speed, but figured the extra money would buy a lot of supplies.

Marcel

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Joe,
For just starting out with a grinder I would look into Coot, Grizzly or the Kalamazoo setup that K&G sells. Try to stick with a 2X72 inch belt, they are readily available from any of the knife supply houses. There is a fellow named Allen Blade that frequents this forum that does a pretty good job I understand on a Grizzly.

As mentioned in a previous thread, I stated what is needed to build your own. If you knock off the variable speed motor and controller, the price of parts go down considerably. If you are industrious, that is one avenue left to go down as well.

I have four grinders in the shop. If I would have bought a top knotch grinder in the beginning, I would be money ahead. But its always that cash flow thing that tends to get in the way, or the "this will do for now" sydrome.

C Wilkins
 
I might spring for the variable....

How do I get in contact with K&G?

Why doesn't anyone make a multispeed grinder?
They make multi speed drill presses that are not too $$$$$$....

Seems Odd to me.

Thanks

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Joe
Just got a grizzley, a week ago
it runs smooth,i got the video
from allen blade and he uses a grizzly to hollow grind a combat knife,he say in the
video he has a burking and a grizzly
and i quote what he said ."if i would have
not gotten the burking for a good price he would own an another grizzly,he shows you
how to get the most from the machine
for the money you cant beat it I put a 60 grit on mine and can eat steel fast when profiling. 1 hp is plenty,to much power and you lose control.and hollow grinding is about
control.
 
Joe,

Variable speed (DC) motors are expensive compared to AC motors. Drill presses use AC motors and obtain different speeds by using a system of step pulleys. You could set up a grinder in a similar fashion by using a pillow block with step pulleys.
 
I bought a variable grinder friom K&G. It is 1 nad a half horse. I like it and use the speed control but I wish I had carbide pieces welded to make it run straight on the platen. Wayne GGoddard says he has that on his for his flat grinding which I prefer over hollow thyough It did a sweet hollow grind knife for
me when I tried one sweet cause it was even possible/.. I wanteed slow so I could learn better and It is good for that . I would like a simpler machine with a encased motor that wayne built in his article. but thats niether here nor there. just save and get a good one. though again many are making knives without grinders....
 
The Coote or Kalamazoo grinder can be had without a motor and step pulleys put on them.

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It is better to bear the rebuke of a wise man than to enjoy the flattery of fools.
 
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