I have read most of the messages about converting a (belt-driven) table
saw to a disc sander. I have an older saw collecting dust in the
corner (it's worthless as a table saw) and am considering one of the
sanding discs for infrequent use. I expect it to ruin the saw or arbor
bearing over time. I could care less.
The thing I am not clear on is RPM. My motor turns at 3450. The
grizzly disc sander says it turns at 3450.
What should the disc spin at? It's just a pulley choice. The messages
about the saw turning too fast and burning up wood don't seem clear. I
assume this is because people are using the same pulley ratio as they
were with the saw blade, which is faster than 3450?
<[email protected]> wrote in message
news:[email protected]...
>I have read most of the messages about converting a (belt-driven) table
> saw to a disc sander. I have an older saw collecting dust in the
> corner (it's worthless as a table saw) and am considering one of the
> sanding discs for infrequent use. I expect it to ruin the saw or arbor
> bearing over time. I could care less.
>
> The thing I am not clear on is RPM. My motor turns at 3450. The
> grizzly disc sander says it turns at 3450.
>
> What should the disc spin at? It's just a pulley choice. The messages
> about the saw turning too fast and burning up wood don't seem clear. I
> assume this is because people are using the same pulley ratio as they
> were with the saw blade, which is faster than 3450?
>
You can slow down the burn rate and or surface speed by simply sanding
closer to the center of the disk rather than the outer edge.
Morris Dovey wrote:
> [email protected] (in
> [email protected]) said:
>
> | I have read most of the messages about converting a (belt-driven)
> | table saw to a disc sander. I have an older saw collecting dust in
> | the corner (it's worthless as a table saw) and am considering one
> | of the sanding discs for infrequent use. I expect it to ruin the
> | saw or arbor bearing over time. I could care less.
> |
> | The thing I am not clear on is RPM. My motor turns at 3450. The
> | grizzly disc sander says it turns at 3450.
> |
> | What should the disc spin at? It's just a pulley choice. The
> | messages about the saw turning too fast and burning up wood don't
> | seem clear. I assume this is because people are using the same
> | pulley ratio as they were with the saw blade, which is faster than
> | 3450?
>
> Saw speed works for me. I did burn some oak on the first try; but a
> little care goes a long way toward eliminating that problem. Worry
> about the pulley ratio if/when you decide the speed is actually a
> problem.
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USA
> http://www.iedu.com/DeSoto/solar.html
>
>
Yep, what you said.
Just take care and regulate your pressure and you should be cooking with
gas :)
John
[email protected] (in
[email protected]) said:
| I have read most of the messages about converting a (belt-driven)
| table saw to a disc sander. I have an older saw collecting dust in
| the corner (it's worthless as a table saw) and am considering one
| of the sanding discs for infrequent use. I expect it to ruin the
| saw or arbor bearing over time. I could care less.
|
| The thing I am not clear on is RPM. My motor turns at 3450. The
| grizzly disc sander says it turns at 3450.
|
| What should the disc spin at? It's just a pulley choice. The
| messages about the saw turning too fast and burning up wood don't
| seem clear. I assume this is because people are using the same
| pulley ratio as they were with the saw blade, which is faster than
| 3450?
Saw speed works for me. I did burn some oak on the first try; but a
little care goes a long way toward eliminating that problem. Worry
about the pulley ratio if/when you decide the speed is actually a
problem.
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/solar.html