View Full Version : HF Grinder upgrades

02-27-2005, 01:32 PM
Here are some pictures of some changes that I made to my HF Grinder. They include a new miter gage, diamond dresser holder, new Gaskets for the ball valve and a new copper tube for water delivery. Installed are new wheels, one diamond and one aluminum oxide. Had to grind clearance on the bottom of the guard casting to allow the aluminum oxide wheel to fit. I also added a spacer to raise the water cup so the delivery tube would be higher.




Sorry about the large picture size, this never happened before. Can't figure out how to make the smaller.

[This message has been edited by WJHartson (edited 02-27-2005).]

[This message has been edited by WJHartson (edited 02-27-2005).]

[This message has been edited by WJHartson (edited 02-27-2005).]

[This message has been edited by WJHartson (edited 02-27-2005).]

02-27-2005, 01:56 PM
To make your picture smaller, go to photobucket and click on edit, then click on resize. This will make it 50% smaller.

Nice job on the grinder.

Paul in NE Ohio

02-27-2005, 02:53 PM
Paul, thanks for telling me how to make the pictures smaller. If photobucket lets me back in I will change the other picture.


02-27-2005, 04:36 PM
Super slick, I love the mitre gauge set up Thanks for the pics Fred

Paul Gauthier
02-27-2005, 07:06 PM
You will not be able to change the small picture back to bigger. You will have to delete it from your album and reintall it from your folder. Then you can resize it to 50% and all should be well.

Paul G.

02-27-2005, 07:56 PM
I was just looking at one today. With a lathe and a shaper I figure it'll come in pretty handy. Can't beat the price! Any other comments on the overall quality and usefulness?

Hoffman in Warner Robins Ga

02-27-2005, 08:16 PM
I think the quality is pretty good, better than a lot of the items at HF. For the price you can't bet it. The stand is a Baldor, which I bought a while back, and the two wheel cost more than the grinder. Total I have about $400 in the grinder everything considered. I have only sharpened a few tools so far but it has done everything I have asked it to do. It does take different screws when you mount the diamond wheel, 6 mm x 1.0 x 3/4" long.


02-27-2005, 08:25 PM
which wheels did you get?

02-27-2005, 08:45 PM
Nice bit of work, did you make the miter?
Where did you find the al. oxide wheel? They seem to be a scarce item (in that mount)

02-27-2005, 08:46 PM
Wheels are:
Diamond 220 grit 6x1x3/4x1-1/4 DD391-5640 from ENCO $93.99 + shipping

Aluminum Oxide 46K Grit 6x1x4 Order No. ABCPW-14210H $24.95 _ shipping from J&L


02-27-2005, 08:55 PM
Yes, I made the miter gage from some scrap that I had. It is Aluminum, base as a 5000 series alloy and the miter is 6061. The guide key is wider on one side so it can get closer to the wheel. The diamond wheel is not as thick as the ALO2 wheel. The miter can be mounted on either end to give the most flexability. The flat section is taller than it needs to be but made it like that so I can add a clamping arrangement if I want to later. It will allow angles up to 90 degree on either side. The one that comes with the unit only had 45 degrees of movement either side.

Also made the diamond dresser holder and the die to cut the new gaskets for the ball valve.

They was fun to make.


02-27-2005, 09:56 PM
I have that same grinder but with the two green wheels that it came with. You have given me some ideas. My water tube is plastic, I'll change that to copper and I think that diamond dressing tool is very nice with the controlled feed setup. I like
the miter gage setup also. The green wheels seem to work well on High speed steel and carbide. I'll wait until these wheel require replacement before buying the diamond wheel. Thanks for posting the pictures.

02-27-2005, 10:06 PM
WJHartson, real nice tools. I also have the HF grinder and will use your ideas, thats why I love this place, lots-O-ideas. JRouche

02-28-2005, 11:23 AM
Joe, thank you for posting the pictures. You do good work! I like your diamond dresser holder. I'm headed down to the shop right way to make one just like it. Thank you for the ideas.

By-the-way, I have the same grinder equipped with the same wheels, the white wheel being purchased from J&L.

Another post asked about the quality of this grinder. I'm satisfied with mine, now that I've tossed the green wheels that came with it. They were very shoddy and out-of-round. They caused the grinder to vibrate horribly.

As Joe mentioned, the aluminum oxide wheel is slightly oversized. I had to grind the table as well as enlarge the guard to get it to fit. It was a simple matter with a Dremel tool and stone.


02-28-2005, 02:32 PM
The Green Wheels that came with mine, turned gray after a couple of dressings.
Painted Green!
My new Green Wheels work so much better.

Tom M.

02-28-2005, 02:46 PM
I am nominating for a submission to the Tips book part 2. Nice job. I will be attempting some derivative of the same modifications

02-28-2005, 02:50 PM
Joe - Thanks for posting the photos of your HF grinder & upgrades. I'm waiting on a new AO wheel from KBC - $18.50 - and a wheel-type dresser. Was tempted to order one of the diamond wheels while Enco had them on sale, but most of my tooling is either indexable carbide inserts or T15 steel, so if I can get one of the green wheels dressed to eliminate the vibration, I'll probably just keep it on one end, and grind HSS & T15 with the AO wheel. At any rate, I like your modifications, and you do nice work!

02-28-2005, 06:20 PM
Very nice, so how about some drawings for that diamond holder ya made? http://bbs.homeshopmachinist.net//smile.gif

02-28-2005, 06:37 PM
(It's almost reached a fever!)

Hoffman in Warner Robins Ga

Dave Burnett
02-28-2005, 07:14 PM
Check e-bay for wheels, I just picked a new diamond wheel for my Baldor grinder for $60.00 and 3 green wheels for $27.00 for all 3. The grinder and cast iron stand I picked up at auction for $80.00 and it was brand new just sitting in the corner and no one seemed to want it very bad but me, everyone there seemed to go after the Bridgeports and were willing to pay high prices for some real trash. Thats the way auctions go. I am going to another one on Wed. They have a good looking 2x48 Burr King that I am interested in, and I think I can get it cheap. Also at the last auction I picked a 1984 Deckel SO grinder in real good shape for $160.00, same deal, no one was that interested in it.

02-28-2005, 08:03 PM
Three thumbs up! http://bbs.homeshopmachinist.net//biggrin.gif Seriously,nice work Joe!

02-28-2005, 09:06 PM
I don't have any drawings of the items so I took them apart and took some pictures. Hope this helps for those that want to copy them.

Diamond dresser:

Body is 3-3/4" long, diameter is 1.910". Key is 4" long ( started with 1/2" key stock and machined to fit slot in the table. Adjuster screw total length is 2.300" long Thread is 3/4 NC but it is not critical. Was going to use a 5/8-18 but drilled the wrong size hole so went to 3/4". Note I have never made any mistakes, only have a lot of spares for yet to be built items. Locking nut is made so that the diameter of the nut is slightly above the outside diameter of the body. Locking screw is 1/4 -20 setscrew with a know screwed onto it. Diamond diameter is 3/8" x 2.350" long. Bought it from J&L. Diamond centerline is about .550" below the diameter of the body.


Thanks for the compliment, hope this is helpful.


02-28-2005, 09:29 PM
Pictures of the miter gage.

The base plate is 3.385" x5.600", the key is machined to fit the groove in the table and is offset to one side by .160". This was because the diamond wheel is thinner than the aluminum oxide wheel. Probably doesn't make any difference. The diameter of the miter gage is 2.900" thickness of the slotted section is 1/2" with the height of the flat section 1.250" which is no critical. Slot is 1/4" and covers 180 degrees of movement. The body diameter on the shoulder bolt is 3/8"x .375 and the thread is 1/4-20 x .375.



03-09-2005, 01:02 PM
i happened to be in HF today to get an engine crane/hoist, and i saw these grinders were on sale for $119, so i picked one up. it does appear to be a rather solid machine. i don't know if anyone else was looking to get one, but the sale is going on until the 24th or so. i printed this thread out with the intent to make use of it, and now i will.

andy b.

03-30-2006, 01:39 PM
Bumpity Bump