The wire wheels you speak of work well. Couple of tricks.
If you your pendant has a lot of high and low relief detail, I would
not use this particular flexshaft accessory. The wire wheels are best
with low relief and minimal detail. They are best for flat surfaces
or gentle curves. If you have high and low relief, the pins could get
stuck and fly off.
1) work at lower speeds, say 1/8-/14 of the way on the pedal or
2) Only the tips should brush the surface. Avoid excess pressure.
Your satin finish should be achieved through overlay of several
strokes, not just one application.
How do you determine your hand pressure on rotary items? Look at
your toothbrush wear. Yes, seriously! If you have to replace your
toothbrush about every 3 weeks, then you are most likely bearing down
with extra pressure. If not, then use more pressure to achieve even
surface abrasion with rotary accessories.
3) For satin finishes on high and low combined relief, try the large
one inch green Radial Bristle Disc. Use a higher speed but a light
touch. Remember to stack at least three on the mandrel (they like to
party). Less at this strength can cause uneven draglines. This grit
disc is beefy and is great achieving a consistent satin finish. The
flexible bristles conform nicely to high and low relief.
4) There are other courser "Scotchbrite" style flexshaft accessories
that come in a variety of abrasive strengths which also work. This is
a bit of research on your part, but I imagine that courser is more
what you want.
Personally, I use the wire wheels when I can. The steel wires dig
into the metal just enough to give it a lustrous bite, but also
scatter the light to achieve that perfect satin look.
Please remember, eye protection is a must, plus a dust mask!
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