Re: Bench Grinder for sharpening

Re: Bench Grinder for sharpening

John Trant (aka Boxes-n-Bowls)

>I prefer the 8" and recommend getting it.

If you get the cheaper 6" to save a few bucks, you will not ever get the 8" (the one you really want) because you won't need two grinders in the shop.

John

Re: Bench Grinder for sharpening

TDaniel

>8" if it is within your checkbook. 1800 rpm Delta is a good choice. GEt 1" wide wheels as they are much easier to sharpen gouges on; the 3/4" wheels are difficult to stay on when grinding a fingernail gouge.

TD

Re: Bench Grinder for sharpening

John Trant (aka Boxes-n-Bowls)

>I should add:

You should look for the slow speed (1725 rpm) or the two speed 8" grinder. The high speed (3450 rpm) 8" grinder is just too fast for almost everything we do.

John

Re: Bench Grinder for sharpening

Bruce McElhaney Spring Lake, MI

>Save yourself some grief, don't buy a cheapie grinder. I have a 6" Baldor and an 8" Delta grinder. For woodturning tools. I prefer the 8" version with its 1" wide wheels and more powerful motor. The Baldor is clearly smoother and better made (made in the USA) than the China made Delta, but Baldor's 8" version is pricy. Baldor's 7" grinder with 1" wide wheels is very nice and a lot cheaper than its 8" model.

Joe, I use....

BubbaBob

>....the Delta 6" VS grinder. It runs about 70 bucks at Home Depot. I bought a sorby jig from Terry Daniels, and the 2 work great together. An advantage to the Delta is it comes with an alum oxide wheel so you don't have to go spend another 30 on a good wheel. I think it is one of the best buys out there.

BubbaBob

Re: Bench Grinder for sharpening

John Lucas

>Dave

I bought the 2 speed 8" grinder from Woodcraft. It's not the smoothest machine out there but was well worth the money. I forget the price but I think it was around $100.

I use the slow speed mostly because it takes less time to get up to speed but you can grind quite successfully at 3450 on High speed Steel tools.

I bought the 8" because it takes longer to wear out the stone and I like the 1" wide wheels which are hard to buy in 6".

Thanks - Re: Bench Grinder for sharpening

Dave W

>Thanks for all of your replies. It looks like I'm off to Lowe's to get the 8" Delta. (The Baldor is beyond my budget).

thanks again,

Dave W.

Look at it this way....

Russ Fairfield

>All the suggestions are good.

If all else fails, look at the replacement cost. You will have to throw away the wheel when it gets down to about 5" diameter. The 8" wheel will take 3 times longer to get there than the 6" wheel. The cost of a new 8" wheel is not 3-times that of the 6" wheel.

Wives will understand this arguement....

Russ Fairfield

>for spending more money on the larger grinder.

Re: Look at it this way....

Dave W

>Actually, I was concerned about the 6" vs 8" size from the point of view of which diameter would do the best job for sharpening. The 8" has a larger diameter, therefore a different shaped arc being ground into the leading edge of the tool than the arc which would be created by a 6" wheel.

It looks like the size of the arc isn't a concern for sharpening, only the cost of replacement wheels and the life of the wheels. From that point of view, it looks like a no brainer to go with the larger wheel size grinder.

Re: Bench Grinder for sharpening

MarkP4583

>I just purchased the 8 in delta my self, my old grinder is about 30 yrs old, kinda beat up.

I opted for the 8 in, seems to be easier to sharpen with the wider weel plus the lower speed.

Re: Bench Grinder for sharpening

Russell Seaton

>I recommend the Woodcraft 8" slow speed (1725rpm)grinder. If you just have to buy a grinder. If you already have a grinder, then use it and maybe get a new wheel for it. The Woodcraft can be bought for $100 total, or less during the frequent 10% off Woodcraft sales. Woodcraft is usually known for standing behind anything they sell. Mine is very smooth running. It comes with 60 and 120 grit white aluminum oxide grinding wheels. Both are harder than ideal so they load up with metal filings. But the $13 T handled diamond dresser takes care of them easily. You need a diamond wheel dresser to keep the wheels in good shape. The 1" wide wheels are easy to grind on. I'm not a fan of the 120 grit wheel and would prefer 46 and 60 grit wheels but you might like the 120 grit. The Oneway Wolverine rests fit on it nicely.

Baldor grinder

Bob Dodge

>I just found a used Baldor grinder, advertised as a 7". It's grey. When I go to Baldor's site, the 7" models, are blue, the 8" are red, and the 10" are grey. I suspect this is indeed a 10" grinder, and looks almost new, with extremely heavy rests, and rear exhaust capability. Judging by the pic of this thing, the wheels look very small in the housings. I can probably pick it up for around $200-$250, which seems like a steal. Included, is a cabinet-type stand. I'm not sure what the motor is, nor rpm rating. I'll be going to see it on Thursday. Just wondering if those wheels would run too hot for hss chisels? I realise that I'd need to change the wheels, to something more suitable to turning tools, and wondered about recommendations, since I'm new to turning.

At present, I have a cheap chinese(Mastercraft) grinder,3600 rpm/6"; and a Tormek.Thanks for any suggestions, Bob

Re: Baldor grinder

TDaniel

>Bob, I would suspect it may be 3 phase.

TD

Re: Baldor grinder

Bob Dodge

>Hi TD, The guy selling it, told me it runs on 110v. When I go to Baldor's site, its single phase,110v,1800 rpm. It looks very much like the #1022W Baldor. Same colour, same rests, same guards, no lights. I wonder what wheels for a thing like this would cost. I'm just a bit concerned that with that size wheel, even at 1800rpm, that I may get some overheating of the chisels. As I calculate it, it appears that the 10"at 1800 rpm, would grind cooler than the 8"at 3450 rpm, by 30,104"/minute. I presume since the rests are adjustable, that I could go with a 9" or 8" wheel as well, on that grinder. All of the 10" Baldors are 1500-1800 rpm. Bob

Re: Look at it this way....

Peter Teubel

>I don't know about you, but I replace my 8" wheels when they get down to 7 1/4". That equates to just about every 10 months.