Disc Grinder

Big Smitty

Big Smitty

Joined
Aug 30, 2007
Messages
509
I am considering a disc grinder. I am looking at one from HF as detailed below. Does anyone have experience with this grinder that can give an opinion on performance? Looking for input so I do not waste $$$. Are the specs on this grinder good for use in making knives? List price on this is $149 and it is on sale now for $109.

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1-1/4 HP motor
Cast aluminum table and disc guard
Motor: 115V, 22.7 amps (start), 1.25 HP, 1750 RPM
Table tilts 0°-30° and 0°-50° in 10° increments
Miter gauge adjusts from 30° - 90° L/R in 1° incrementsacuum port: 2.802
Table size: 16-3/8" L x 6-7/8" W
Table height: 7-5/8" from base

Overall dimensions: 19-5/8" x 16-3/8" x 14-5/8"
Weight: 83.2 lbs.
 
i use a disc grinder quite alot at work and find it really useful. It might not be the best for grinding bevels but for profiling and flattening it will be really useful
 
if you want one for grinding bevels that one might possibly work but i would rather have one that gave you full access to the disc. if you were to see how i grind you could choose better.
 
You can find 9" disk on Ebay or get them from Grizzly tool. Then have a shaft turned to accept the disks and a pulley. 2 pillow block bearings and a 1 hp motor that will reverse and you would have way more machine. A little thrifty shopping and some work and could have a better machine for a bit more. I run a 1hp with a VFD and 12" and a 9". I probably have about $350 in mine but, $160 of that was the vfd. I also bought both disk new from Grizzly. I did turn my own shaft.

diskgrinder006.jpg
 
For what it's worth. Many makers make their own disc grinders, and I made my own too. But for a hundred bucks, that would be quick and easy, and it should have enough power for what you need.

The only caveat, and I haven't seen it mentioned above, is the idea for using a beveled disc like Rob Frink's. That's what I use and it is fantastic; you can pass your work past the center of the disc without it dragging in the opposite direction on the other side.

Here's a link. I think this is very worthwhile, and something to consider if you're thinking about building your own machine.
 
Big Smitty said:
ib2v4u - I like that set up! Where did you get the tool rests from?
Click to expand...

I took them of an older grinder I had picked up at a yard sale. They swing up and lock in place and I can adjust the angles. ;) I have a pot to control the speed and a switch to control the direction on one side. It like most of my stuff is on wheels so I can move them into position and then lock the wheels. The white box in the middle is the base of one of these spring arm lights so I can aim it right where I want it. I must have 6 of them at least. One on every grinder and my bench.

By the way the cast iron disk Grizzly used are here part #22 for $29 each.

http://www.grizzly.com/products/g1014z/parts
 
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