-rotating tool, not necessarily a Dremel, a car
polisher will do a better but slower job
Time estimation: --
Cost: low
Material:
-sand paper 150, 200,
400, 800, 1200, 1500 and up to 20000 if its possible and you want
a perfect finish
-polishing paste
-cotton blade
-of course, a metal peace
Pre-requisites: None
Here are some tips
explaining basic ways to cut, sand, polish or draw on a metal
piece. By following this how to, you will learn how to make
brushed metal, chrome imitations and the easiest way to make a
shape without any heat source or hammer.
This can seem to be
hard, but it's not. Before starting you need to know that doing
this without electric tools is very long and repetitive.
Mirror finish:
1. In a tray, add some
oil (kitchen oil can do the job) on the area.
2. Depending on the
kind of surface sand with:
-150 sandpaper if
there is some paint or irregularity
-400 if the
surface is flat
* Sand always in the
same direction
** Don't apply too
much pressure
3. After 2 hour of
manually sanding with the sandpaper of #2 then, 2 hours (each)
with 200, 400, 800, 1200 and 1500
* It is not
recommended to skip more than 400 from one type of sandpaper to
the next, it will be longer.
4. You can finish with
a layer of varnish, if you do not the surface will oxidize after
a few months.
*remove all oil before
adding the varnish layer
SHAPE:
1. Make a real size
pattern
2. With the grinder
slowly trace the form following the pattern.
3. When you will have
finished, use the file to erase every small line for have a plane
surface, yes this is hard and long, but it is necessary.
4. Now use polishing
stone to remove the line made by the file.
5. Now, take the 150
paper and remove line made by polishing stone.
6. Now, take the 200
to remove line made by the 150.
7. Continue with 400,
800, 1200 and 1500.
If you to make a
complicated draft, you can take sand paper with different grains
to try to make shapes in the metal
For holes, use a
drill.
For black metal
parts, use a candle, burn the metal but if you are on a finished
surface the color will go away every time you touch it, so sans
it a little with 400 sandpaper.