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How do I dress a grinding wheel that is way out of round?

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Forum topic by Rob Drown posted 10-22-2013 07:45 AM 913 views 0 times favorited 10 replies Add to Favorites Watch
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Rob Drown

724 posts in 2498 days


10-22-2013 07:45 AM

Topic tags/keywords: question wet grinder

I have a low speed delta wet grinding wheel that is about 1/8 ” out of round. I want to use sharpening jigs with it. How do I true this wheel? Will a diamond dresser take off that much material with out wearing out?

-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真


10 replies so far

View stefang's profile

stefang

13101 posts in 1999 days


#1 posted 10-22-2013 09:40 AM

That might depend on it’s diameter Rob. I buy my diamond dressers pretty cheap over here and if I wore one out, it wouldn’t be a big deal to replace it compared to the cost of a new grinding wheel.

-- Mike, an American living in Norway.

View kaerlighedsbamsen's profile

kaerlighedsbamsen

539 posts in 378 days


#2 posted 10-22-2013 10:06 AM

The cheap&dirty way is to just use a coarse grinding disc in a angle grinder, support it on the toolrest and some wood and grind away. Works surprisingly well.

But if your wheel is that much off chances are that it is poorly made and have uneven density in the grain and bonding material and the wheel wil be off again quick. A new wheel is perhaps a better solution. Scheppach sells some blue ones that are reasonable prized and works great (if your grinder is the Tormek-type)

-- "Do or Do not. There is no try." - Yoda

View Bluepine38's profile

Bluepine38

2878 posts in 1750 days


#3 posted 10-22-2013 03:41 PM

Stefang’s diamond dressing idea will work, but if it is that much out of round kaer’s will be faster, just wear a
good dust mask and eye protection. If it is the same as my Delta it has a container to hold the water that
the wheel sets in. Do not use the water holder, the furnished grinding wheel soaks up too much water, and
will soften and get out of round again. I just use a spray bottle and keep the wheel moist enough to grind easy. A star type dressing wheel will remove the glaze caused by grinding to let the wheel cut better.

-- As ever, Gus-the 75 yr young apprentice carpenter

View Rob Drown's profile

Rob Drown

724 posts in 2498 days


#4 posted 10-22-2013 04:58 PM

Mke, kaerlighedsbamsen, and Gus. Thank you very Much. This grinder has been sitting on the shelf, now pretty soon it is going to work!!!! It is the soaking that makes it go out of round!!

-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真

View kaerlighedsbamsen's profile

kaerlighedsbamsen

539 posts in 378 days


#5 posted 10-22-2013 05:59 PM

The wheel is not supposed to sit in the water all the time. Does the design allow to lower the water container? Otherwise i think Blue´s adwise sounds good.

-- "Do or Do not. There is no try." - Yoda

View SCOTSMAN's profile

SCOTSMAN

5381 posts in 2250 days


#6 posted 10-22-2013 07:27 PM

A good diamond grinder get a flat one shaped like a letter T and not a single point for best results.Alistair

-- excuse my typing as I have a form of parkinsons disease

View Clint Searl's profile

Clint Searl

1465 posts in 1026 days


#7 posted 10-22-2013 08:13 PM

Trying to fix it ain’t worth the aggravation, just buy a new wheel.

-- Clint Searl....Ya can no more do what ya don't know how than ya can git back from where ya ain't been

View Bluepine38's profile

Bluepine38

2878 posts in 1750 days


#8 posted 10-23-2013 02:16 PM

Clint if it is the wheel I think it is, the cost runs from $94. to $400. That is worth a little aggravation.

-- As ever, Gus-the 75 yr young apprentice carpenter

View DrDirt's profile

DrDirt

2467 posts in 2407 days


#9 posted 10-23-2013 04:22 PM

Good thoughts on the dressing
I would start by checking the grinder shaft and make sure the bushing in the wheel is intact.

I have never seen a modern wheel 1/8th out of round.
The wheels on my sharperner have oneway balancing hubs on them.

But I have a variable speed grinder not just slow speed sharpening.

-- "If we did all the things we are capable of doing, we would literally astonish ourselves." Edison

View Rob Drown's profile

Rob Drown

724 posts in 2498 days


#10 posted 10-23-2013 09:15 PM

Im going to give truing a go and the just use a little water spray to keep things lubricated and cool. Thank you all!!

-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真

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