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Today I propose a series of photos on the rehabilitation of the spheres. In effect, the corrosion had attacked the very surface of the bowl to prevent the wiper to get the rust and sand or other fine particles, it is necessary to make a sphere surfacing to remove oxidation and lead to a surface as smooth as possible, variations to this trick available as refills to the baguette welding or repairing ceramics with Loctite. Here are the steps:
Dismantling:
observation:
After a serious brush with wire brush on grinder:
Use of a product Sader (repair metal) findable in all stores "bricotruc"
A first application:
Then allowed to dry for 12 hours.
Then hand sanding grit 80 and 180:
After two or three assists in identifying many imperfections and letting it dry 12 hours and sanding between each pass we can proceed to final identification of the last pass.
The identification of imperfections is made using three complementary methods:
1 - to the eye, we see if there is direct visualization of hollow or looking at the profile of the sphere to see depressions.
2 - hand, we go hands on the ball and we noted the irregularities.
3 - blind, we pass the hand and fingers on the spheres eyes closed, after a touching moment grows, "we see very well with his hands."
with a pencil mark on the gradients to fill:
and add more :
12 hours drying and sanding at 180
It is therefore high time to prepare 3 to 4 times: