In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. No "developed HP"
nonsense here.

In the fixup department, all it needed was a new V-belt, and to have
everything properly adjusted and tightened. Everything was slightly
cockeyed.

The drive belt it came with appears to have been the original, and had
stretched from the original 38" to 39", and was visibly falling apart.
Replacing the belt required partial disassembly, which required the
usual set of wrenches, and so probably it never happened. Many
woodworkers do not have such tools. (The machine was used mostly for
wood, judging from the sawdust it came with. There was some metal stuck
in the 8" disk, and there had been a fire in the housing of the 1" belt,
so some metal was ground as well. Perhaps only once.)

I put a zirconium oxide (purple) belt (made by Sait) in it, and it
really moves metal.

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

Joe Gwinn

Joseph Gwinn wrote:

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

I gave a shot at googling the adhesive since being able to make my own post-it type
sandpaper has uses for me. Maybe someone will pipe up.

I've used 3M 77 contact cement for sticking sandpaper to plate glass for scary sharp
sharpening but left too long, it is way too agressive.

Wes
--
"Additionally as a security officer, I carry a gun to protect
government officials but my life isn't worth protecting at home
in their eyes." Dick Anthony Heller

In article ,
Wes wrote:

Joseph Gwinn wrote:

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

I gave a shot at googling the adhesive since being able to make my own
post-it type sandpaper has uses for me. Maybe someone will pipe up.

What I've found so far from 3M in 8" disks is PSA Discs using their 248D
abrasive, which is rated for steel and non-ferrous. The fancy 3M
abrasive 777F (Cubitron) is not available in 8" discs. The max is 5" or
6".

This from the "3M(TM) Industrial Products for Metalworking Catalog -
Catalog (PDF 6.5 MB)" at www.3M.com.


I've used 3M 77 contact cement for sticking sandpaper to plate glass for
scary sharp sharpening but left too long, it is way too agressive.

If you wet the sandpaper with ordinary lighter fluid and wait awhile, it
should be possible to peel the sandpaper up easily. Paint thinner
probably works as well.

Joe Gwinn

On Sun, 25 Jan 2009 16:53:58 -0500, the infamous Wes
scrawled the following:

Joseph Gwinn wrote:

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

I gave a shot at googling the adhesive since being able to make my own post-it type
sandpaper has uses for me. Maybe someone will pipe up.

I've used 3M 77 contact cement for sticking sandpaper to plate glass for scary sharp
sharpening but left too long, it is way too agressive.

Spraying adhesive beneath super-fine grits, with its bumpiness, is one
way to remove sharpness, mon. That said, Super 77 puts out the
finest, least bumpy adhesive stream of any I have ever tested. If you
must adhere it, stick only the two ends.

But if you must, spray both pieces, allow them to dry for 30 minutes,
_then_ stick 'em together. I've heard that works for a Post-It-like
stickem but haven't tried it. Everything I glue (mostly my NoteSHADE
glare guards) is glued for good.

--
Even with the best of maps and instruments,
we can never fully chart our journeys.
-- Gail Pool

On Jan 26, 7:57*am, Joseph Gwinn wrote:
In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. *I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. *The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. *No "developed HP"
nonsense here.

In the fixup department, all it needed was a new V-belt, and to have
everything properly adjusted and tightened. *Everything was slightly
cockeyed. *

The drive belt it came with appears to have been the original, and had
stretched from the original 38" to 39", and was visibly falling apart. *
Replacing the belt required partial disassembly, which required the
usual set of wrenches, and so probably it never happened. *Many
woodworkers do not have such tools. *(The machine was used mostly for
wood, judging from the sawdust it came with. *There was some metal stuck
in the 8" disk, and there had been a fire in the housing of the 1" belt,
so some metal was ground as well. *Perhaps only once.)

I put a zirconium oxide (purple) belt (made by Sait) in it, and it
really moves metal.

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. *A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

Joe Gwinn

I've seen frequent references to these things before - to me, the only
obvious use is to deburr edges, maybe touch up lathe tools. What else
are they used for?
Andrew VK3BFA.

In article
,
wrote:

On Jan 26, 7:57*am, Joseph Gwinn wrote:
In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. *I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. *The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. *No "developed HP"
nonsense here.

In the fixup department, all it needed was a new V-belt, and to have
everything properly adjusted and tightened. *Everything was slightly
cockeyed. *

The drive belt it came with appears to have been the original, and had
stretched from the original 38" to 39", and was visibly falling apart. *
Replacing the belt required partial disassembly, which required the
usual set of wrenches, and so probably it never happened. *Many
woodworkers do not have such tools. *(The machine was used mostly for
wood, judging from the sawdust it came with. *There was some metal stuck
in the 8" disk, and there had been a fire in the housing of the 1" belt,
so some metal was ground as well. *Perhaps only once.)

I put a zirconium oxide (purple) belt (made by Sait) in it, and it
really moves metal.

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. *A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

Joe Gwinn

I've seen frequent references to these things before - to me, the only
obvious use is to deburr edges, maybe touch up lathe tools. What else
are they used for?

With the right kind of sandpaper, they are very useful for rough shaping
of metal. Basically, freehand grinding, but cheaper and more forgiving
than spinning stones.

The narrow (1") belt is good for forming curves. I read that
knifemakers like the 1" belt a lot.

This Wilton unit is the same idea as what I have, but differently
arranged:

http://www.amazon.com/dp/B000GTO4IY?...g=nextag-tools
-tier3-delta-20&linkCode=asn

On mine, the disk is in the back on the left (being on the motor shaft),
and the 1x42 assembly is in front, with a V-belt between.

Many of these units had a little table and mitre gage, so one can use it
to grind angles. Precise it is not, but good enough for many things.

It appears that J&L (now part of MSC) does offer 8" PSA disks in
aluminum oxide, but so zirconium oxide so far. Many sizes except 8".

Joe Gwinn

On Jan 25, 1:57*pm, Joseph Gwinn wrote:
In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. *I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. *The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. *No "developed HP"
nonsense here.

In the fixup department, all it needed was a new V-belt, and to have
everything properly adjusted and tightened. *Everything was slightly
cockeyed. *

The drive belt it came with appears to have been the original, and had
stretched from the original 38" to 39", and was visibly falling apart. *
Replacing the belt required partial disassembly, which required the
usual set of wrenches, and so probably it never happened. *Many
woodworkers do not have such tools. *(The machine was used mostly for
wood, judging from the sawdust it came with. *There was some metal stuck
in the 8" disk, and there had been a fire in the housing of the 1" belt,
so some metal was ground as well. *Perhaps only once.)

I put a zirconium oxide (purple) belt (made by Sait) in it, and it
really moves metal.

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. *A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

Joe Gwinn

I have a similar item, it's sold by Delta and is also Taiwanese. Was
a factory refurb and sold at about half the list price. I've used it
a lot for metalworking stuff, a lot more than for woodworking. Might
be worth looking it up on the Delta site if you're missing some
parts. It came with a miter gauge for both the disc's table and the
belt's table. Handy for some things.

HF used to have PSA glue on the shelf so you could make your own peel-
off sanding disks, I think it was Weldwood brand. 8" is an odd size
in the industry, they aren't usually on the shelf at the local tool
places. The few I need I usually get from the annual woodworking
show, not a real heavy disc user. The 1x42" belts are sometimes hard
to find except at HF and those aren't really worth picking up. Knife
maker's supplies and sometimes the gunsmithing suppliers can come up
with the more oddball grits and abrasive materials.

Stan

On Sun, 25 Jan 2009 15:57:06 -0500, Joseph Gwinn
wrote:



I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

A&H Abrasives in Casper, WY has 8" PSA zirconia discs from 24 grit
thru 120 grit. They accept phone orders and credit cards.
1-800-831-6066

On Sun, 25 Jan 2009 16:53:58 -0500, Wes wrote:

Joseph Gwinn wrote:

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

I gave a shot at googling the adhesive since being able to make my own post-it type
sandpaper has uses for me. Maybe someone will pipe up.

I've used 3M 77 contact cement for sticking sandpaper to plate glass for scary sharp
sharpening but left too long, it is way too agressive.

Wes
I have used a 3M product labeled feathering disk adhesive (see:
http://multimedia.mmm.com/mws/mediaw...6bz9COrrrr Q-
) which claims to hold several applications of new disks to the
backing. I never had much luck due to long interval between disk
changes. I haven't seen it available lately and have used rubber
cement with some success.
Gerry :-)}
London, Canada

On Sun, 25 Jan 2009 15:51:31 -0800 (PST), wrote:



I've seen frequent references to these things before - to me, the only
obvious use is to deburr edges, maybe touch up lathe tools. What else
are they used for?
Andrew VK3BFA.

They're very handy for rough-shaping sheetmetal, particularly
aluminum. By "rough" I mean eyeball, grind-to-the-line (maybe .010"
or 0.25mm tolerance) which often is quite sufficient. They can
remove metal at a surprising rate. Tip: wear welding gloves. The
workpiece can get quite hot quite quickly.

Rounding corners or making radii on machined metal parts. Example:
need an expedient thin wrench of a certain size. Cut out a blank of
suitable thickness on bandsaw, mill the working part to accurate size,
take to belt sander to knock off all the corners so it "looks like a
wrench" and is comfortable to use.

Cleanup of welds on small projects. Example: make a little ally box
for an elex project. Bending never works for me because I don't have
room for a precision brake. I cut out the pieces, clamp them to a
square copper bar, and TIG-weld the corners. A few seconds at the
belt sander makes the welds look like bends and the dimensions are
right. Stuff fits.

On Mon, 26 Jan 2009 00:28:49 -0500, Gerald Miller
wrote:

On Sun, 25 Jan 2009 16:53:58 -0500, Wes wrote:

Joseph Gwinn wrote:

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

I gave a shot at googling the adhesive since being able to make my own post-it type
sandpaper has uses for me. Maybe someone will pipe up.

I've used 3M 77 contact cement for sticking sandpaper to plate glass for scary sharp
sharpening but left too long, it is way too agressive.

Wes
I have used a 3M product labeled feathering disk adhesive (see:
http://multimedia.mmm.com/mws/mediaw...6bz9COrrrr Q-
) which claims to hold several applications of new disks to the
backing. I never had much luck due to long interval between disk
changes. I haven't seen it available lately and have used rubber
cement with some success.
Gerry :-)}
London, Canada
See:
http://products3.3m.com/catalog/ca/f...er/output_html

or search 3M for 0805 1
Gerry :-)}
London, Canada

In article ,
Don Foreman wrote:

On Sun, 25 Jan 2009 15:57:06 -0500, Joseph Gwinn
wrote:



I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

A&H Abrasives in Casper, WY has 8" PSA zirconia discs from 24 grit
thru 120 grit. They accept phone orders and credit cards.
1-800-831-6066

I'll be calling them. Thanks,

Joe Gwinn

In article ,
Joseph Gwinn wrote:

In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. No "developed HP"
nonsense here.

I just noticed that the Sears machine nameplate (well, sticker) says
"5/8 HP max developed ", so we now can compute the ratio: (5/8)/(1/3)=
1:875 to one. So, in round numbers, divide Sears max developed HP by
two to get to real HP.

At least for a real motor. Now, the motor label is either missing or
information-free.

I didn't realize that this max-developed-HP had started in 1988, but
there you have it.

Joe Gwinn

On Jan 25, 2:57*pm, Joseph Gwinn wrote:
In November or December 2008 I bought a used Craftsman Grinder/Sander
model 351.22632 from a local used tool store for $60 or so. *I just got
around to fixing it up.

It is a disk (8" diameter) plus belt (1" wide by 42" long) sander made
of cast iron and steel, with plastic used only for the belt guards, and
it weighs a ton. *The whole thing was made in Taiwan in 1988.

The motor is 1/3 HP, made by Yung Li Hsing Electric Works, looks like a
GE motor, and has a real industrial-motor nameplate. *No "developed HP"
nonsense here.

In the fixup department, all it needed was a new V-belt, and to have
everything properly adjusted and tightened. *Everything was slightly
cockeyed. *

The drive belt it came with appears to have been the original, and had
stretched from the original 38" to 39", and was visibly falling apart. *
Replacing the belt required partial disassembly, which required the
usual set of wrenches, and so probably it never happened. *Many
woodworkers do not have such tools. *(The machine was used mostly for
wood, judging from the sawdust it came with. *There was some metal stuck
in the 8" disk, and there had been a fire in the housing of the 1" belt,
so some metal was ground as well. *Perhaps only once.)

I put a zirconium oxide (purple) belt (made by Sait) in it, and it
really moves metal.

I have not yet found a source for the 8" self-stick zirconium sandpaper
disks. *A prior owner attached some ordinary sandpaper to the disk using
contact cement, so I assume he too was having problems finding the disks.

Joe Gwinn

Good discussion...thanks for bringing it up.

TMT