4
votes
Fill Gap Between Speaker Mounting Bracket and Spherical Steel Enclosure
One option you have would be to find a local makerspace or solicit a creation via Reddit for someone to design and print on a 3D printer the precise shape you require.
It's a simple matter to generate ...
- 7,231
4
votes
Repairing a leather and stainless steel bracelet
If the leather fits back in the clasp
It doesn't look like it in the picture, but if the leather can be inserted back in the clasp, I would use E6000 adhesive to glue it in. It bonds aggressively ...
- 11.5k
3
votes
Accepted
How to darken this light-golden metal
I'll get some ideas started. Some thoughts (updated):
It isn't really clear what the rod composition is. The gold color on the surface appears to be different from the metal comprising the rod (not ...
- 11.5k
3
votes
Surface Treatment to Make Carbon Steel Look Like Cast Iron
Obscure alchemical recipes aside, the easiest way to "turn" steel into cast iron is by painting it.
The steel probably needs to be degreased (using thinner) and primed (with a metal primer). ...
- 10.4k
3
votes
Accepted
What kind of material is recommended to abrade a ring to reduce glossy finish?
The ring appears to be solid so polishing with various grades of silicon carbide paper ( wet or dry ) will provide various degrees of matte like finish. Good hardware store or auto pars store will ...
- 1,245
3
votes
Fill Gap Between Speaker Mounting Bracket and Spherical Steel Enclosure
Silicone or polyurethane caulk
You will need to practice a bit on how to apply it neatly, but it will fill a gap of this size well.
If you want the speaker to be removable, wax the sphere before ...
- 451
3
votes
Accepted
Is gold casting under pressure or not?
From a purely physical point of view, being "under pressure" means having a force applied to you. Our atmosphere is constantly applying a force on us from all sides, so objectively speaking ...
Elmy♦
- 12.6k
2
votes
Accepted
External loads on gold jewelry
There is an industry standard, ASTM F2999-19, but it's focus is determining safety (mechanical hazards and material toxicity).
Here you can find a study comparing the wear resistance between platinum ...
- 10.4k
2
votes
How to properly blacken and rust protect steel chain?
You are right about the enamel being stripped between the links. The high point pressure would abrade the protective coating quickly.
Painted on chemical oxide finishes are extremely thin. The ...
- 195
1
vote
Is gold casting under pressure or not?
Not a simple answer because a few processes are used. A major factor is the high density of gold ; A-- liquid gold pushes in to all volumes. B -- liquid gold pushes any gases into porous mold material ...
- 1,245
1
vote
Is gold casting under pressure or not?
As @Elmy correctly suggested, I asked them directly. This is their response.
Thanks for the question.
With our vacuum casting machines, the melting and casting process are
done within one large ...
- 217
1
vote
Accepted
How to Cut 5.25” Circle in 8” Steel Sphere
Two alternatives:
Hole saw.
Image Source: Amazon
They will look generally like this, but the cutting edge may vary depending on what is required to cut the steel (how hard it is). You will probably ...
- 581
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