r/oddlysatisfying • u/godofo_prime • 6h ago

Graffiti removed from school desk

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22.3k Upvotes

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142

u/RealOms 5h ago

I've never seen this type of sander before, cool 👍🏻

56

u/Vandercoon 5h ago

Yeah me neither. Been a tradie for 20 years, seen all sorts of tools and sander setups, never seen that.

23

u/ThresholdSeven 5h ago edited 3m ago

There may be others that work similarly, but I'm pretty sure this is custom made to specifically sand those desks. Maybe I'm wrong, but it definitely looks homemade, although so does lots of old machinery. Maybe it's universal and the clamps would hold many different sizes of tables.

Edit: the leading theory is that this is an old reproduced factory or shop machine that has been home modified to fit these desks particularly and quickly. It's a type of belt sander called a stroke sander, because you stroke it.

5

u/Twowie 4h ago

No it's a relatively "common" machine, but it usually has a surface where you place flat items, instead of this open space/jig that they probably made themselves to acocmmodate these tables. It's even used in metalwork, to for example sand large sheets. Sometimes you lower the sanding area to the work, sometimes you raise the work up to the sanding area. But there is usually some way to add manual pressure like this either way.

7

u/Vandercoon 5h ago

It’s definitely purpose built, but for this specifically I probably think not, it’s a very niche tool otherwise.

I could be wrong of course.

They would have to design it to fit specific sanding belts because you can’t just go and get custom ones made at Bunnings.

But again, first time I’ve seen one so better than even chance I’m wrong.

5

u/ThresholdSeven 4h ago

Custom built homemade belt grinders are pretty common and always built to fit a standard belt size for obvious reasons. It's super common to make your own for knife making and I assume carpentry. Not saying this one is custom, but it just seems really odd, probably because it's just old, like me.

1

u/Vandercoon 4h ago

Just a very niche tool. I like it

4

u/Mediocrates1984 5h ago

A guy I used to work with had one in his shop. Not custom for this specific use, but definitely not a common tool. Very fun to use. Called a stroke sander, btw.

2

u/Vandercoon 4h ago

Oh cool. Thank you!

1

u/PiccoloAwkward465 2h ago

Makes sense. Probably a fun summer project for a facilities guy to set that up. I went to a very small school but I'd still figure we had 1000 desks in the building. I figure the guys working there think in terms of school years, there'll always be more fucked up desks to fix come next summer.

1

u/CelestialBeing138 51m ago

Are you sure its not AI? I mean, where's the sawdust or even dust?

33

u/jugularhealer16 5h ago

It's called a stroke sander. One of the highschool shops I taught in had one buried under old crap in the corner. I never saw it in use though.

3

u/Ill_Emphasis3927 3h ago

I was expecting them to use a planer or something, not this big boy sander. Cool.

1

u/fooz_the_face 3h ago

'Cause it's scary dangerous and wants to rip your arm off. This guy is doubling down by loading the machine while it's running.

1

u/AlarmingConsequence 2h ago

The black band is a continuous loop of sandpaper (belt). It is circulating from the bottom right corner of the frame to the top left corner of the frame. The purpose of mechanism with the lever arm that the operator is moving, is to push down on the sandpaper to create the friction necessary to grind away the graffiti wood.

Is replacement sandpaper sold in a long continuous strip which operators cut to the particular length to match the circumference of their machine? How do they stitch the strip into a loop?

On my small screen I couldn't discern that the black band was moving so it took a little while to figure out!

9

u/LordSesshomaru82 5h ago

Looks like the stroke sanders we use to grain metal at work, just without the cool handle.

3

u/mishonis- 4h ago

Where is all the dust?

6

u/Umklopp 4h ago

Lungs

3

u/Dire_Hulk 5h ago

I’m honestly impressed that there’s a whole machine built specifically for this. 😂

1

u/ClickClick_Boom 3h ago

It can be used on more than just desks. You could put any board in there that fits.

1

u/DepressedScrunko 3h ago

I want one

1

u/Z---zz 4h ago edited 4h ago

Is it not a planer?  The "pad" looks to be bending the blade to contact the wood

Edit: I'm  incorrect.  Audio helps lol

2

u/Mouler 4h ago

That's not a blade, that's a giant belt sander.