imported_animes2k
New member
does this pretty well explain this concept? (i got bored and decided I wanted to draw) 
Buffing into/off edges
- Thread starter imported_animes2k
- Start date
imported_animes2k
New member
does this pretty well explain this concept? (i got bored and decided I wanted to draw)
imported_animes2k
New member
cool. glad I got the concept down. now for the practical application.
thanks!
thanks!
imported_animes2k
New member
cool. glad I got the concept down. now for the practical application.
thanks!
thanks!
J.J.
DEEP & WET
That would be correct!
JJ
JJ
J.J.
DEEP & WET
That would be correct!
JJ
JJ
Pats300zx
Super Moderator
WOW..great illustrations. I am new to the rotary. The major no no with the second pic is that you allowed the pad to come too far over to the edge????
Sorry if its a stupd question.
Sorry if its a stupd question.
Pats300zx
Super Moderator
WOW..great illustrations. I am new to the rotary. The major no no with the second pic is that you allowed the pad to come too far over to the edge????
Sorry if its a stupd question.
Sorry if its a stupd question.
Accumulator
Well-known member
animes2k- That is a *GREAT* illustration :xyxthumbs. Just perfect.
Not stupid at all, the difference between off/against is an important concept. I'll try to explain.
The *biggest* problem with the second pic/going against the edge isn't about the amount of pad overhang, although less *is* better. It's mainly about the direction of the pad and the location of the edge of the panel, here the trailing edge of a door, but both things are important.
Keep in mind that the rotary moves clockwise- all it's force is channeled in that direction.
See how the overhanging part of the pad drops below the surface of the door (the "overhead" view at the bottom of each example)- the overhanging part in the first example sorta "flies off the panel" and doesn't "hit" the edge with much force, just a little where it "comes back on the door" (around 2 o'clock to 4 o'clock in the "green zone" example) . And you can help this a little with very minor tilting of the pad so that there's virtually no contact at all with the actual edge of the door.
Now look at the second example- the overhanging part of the pad is driving directly into the sharp edge of the door; the clockwise rotarion of the pad puts all the force right into that edge. Even if you tilt the pad a little, most of the force will be hitting around 11:30- 12 o'clock in the "red zone") . It *has* to hit the edge to get onto the door. Since edges are usually more thinly painted, there's a greater chance that this extra force will cut off too much paint. And it's also harder to control since the edge is "working against the torque of the machine"; you're bumping against the edge.
Hoep the above was easier to understand that I think it might be
Pats300zx said:
Not stupid at all, the difference between off/against is an important concept. I'll try to explain.
The *biggest* problem with the second pic/going against the edge isn't about the amount of pad overhang, although less *is* better. It's mainly about the direction of the pad and the location of the edge of the panel, here the trailing edge of a door, but both things are important.
Keep in mind that the rotary moves clockwise- all it's force is channeled in that direction.
See how the overhanging part of the pad drops below the surface of the door (the "overhead" view at the bottom of each example)- the overhanging part in the first example sorta "flies off the panel" and doesn't "hit" the edge with much force, just a little where it "comes back on the door" (around 2 o'clock to 4 o'clock in the "green zone" example) . And you can help this a little with very minor tilting of the pad so that there's virtually no contact at all with the actual edge of the door.
Now look at the second example- the overhanging part of the pad is driving directly into the sharp edge of the door; the clockwise rotarion of the pad puts all the force right into that edge. Even if you tilt the pad a little, most of the force will be hitting around 11:30- 12 o'clock in the "red zone") . It *has* to hit the edge to get onto the door. Since edges are usually more thinly painted, there's a greater chance that this extra force will cut off too much paint. And it's also harder to control since the edge is "working against the torque of the machine"; you're bumping against the edge.
Hoep the above was easier to understand that I think it might be
Accumulator
Well-known member
animes2k- That is a *GREAT* illustration :xyxthumbs. Just perfect.
Not stupid at all, the difference between off/against is an important concept. I'll try to explain.
The *biggest* problem with the second pic/going against the edge isn't about the amount of pad overhang, although less *is* better. It's mainly about the direction of the pad and the location of the edge of the panel, here the trailing edge of a door, but both things are important.
Keep in mind that the rotary moves clockwise- all it's force is channeled in that direction.
See how the overhanging part of the pad drops below the surface of the door (the "overhead" view at the bottom of each example)- the overhanging part in the first example sorta "flies off the panel" and doesn't "hit" the edge with much force, just a little where it "comes back on the door" (around 2 o'clock to 4 o'clock in the "green zone" example) . And you can help this a little with very minor tilting of the pad so that there's virtually no contact at all with the actual edge of the door.
Now look at the second example- the overhanging part of the pad is driving directly into the sharp edge of the door; the clockwise rotarion of the pad puts all the force right into that edge. Even if you tilt the pad a little, most of the force will be hitting around 11:30- 12 o'clock in the "red zone") . It *has* to hit the edge to get onto the door. Since edges are usually more thinly painted, there's a greater chance that this extra force will cut off too much paint. And it's also harder to control since the edge is "working against the torque of the machine"; you're bumping against the edge.
Hoep the above was easier to understand that I think it might be
Pats300zx said:
Not stupid at all, the difference between off/against is an important concept. I'll try to explain.
The *biggest* problem with the second pic/going against the edge isn't about the amount of pad overhang, although less *is* better. It's mainly about the direction of the pad and the location of the edge of the panel, here the trailing edge of a door, but both things are important.
Keep in mind that the rotary moves clockwise- all it's force is channeled in that direction.
See how the overhanging part of the pad drops below the surface of the door (the "overhead" view at the bottom of each example)- the overhanging part in the first example sorta "flies off the panel" and doesn't "hit" the edge with much force, just a little where it "comes back on the door" (around 2 o'clock to 4 o'clock in the "green zone" example) . And you can help this a little with very minor tilting of the pad so that there's virtually no contact at all with the actual edge of the door.
Now look at the second example- the overhanging part of the pad is driving directly into the sharp edge of the door; the clockwise rotarion of the pad puts all the force right into that edge. Even if you tilt the pad a little, most of the force will be hitting around 11:30- 12 o'clock in the "red zone") . It *has* to hit the edge to get onto the door. Since edges are usually more thinly painted, there's a greater chance that this extra force will cut off too much paint. And it's also harder to control since the edge is "working against the torque of the machine"; you're bumping against the edge.
Hoep the above was easier to understand that I think it might be
atticdog
New member
just what i learned at a buffing class this morning
atticdog
New member
just what i learned at a buffing class this morning
imported_rusty bumper
New member
Wouldn't it be a good idea to tape the edges for safety's sake?
imported_rusty bumper
New member
Wouldn't it be a good idea to tape the edges for safety's sake?