Nice job! can you do the same for aluminum? as I recall stainless is about 60% reflective of visible light whereas aluminum is about 90% Im trying to make a telescope mirror from a cast aluminum disc.
@@radc7777 honestly I'm kind of scratching my head and trying to figure out what I'm doing wrong, the aluminum on its own just doesn't want to take or hold a proper shape for a telescope mirror I keep getting minor asymmetries that I can't seem to polish or grind out it could be that being a solid slab of a highly thermally reactive metal that temperature changes are causing it to deform or it could just be that it's too soft which is probably why they use a good high quality glass then coat it aluminum it holds the form where is the metal is too soft or thermally reactive on its own. If I manage to figure it out and make anything that actually works I'll let you know likewise if I give up and conclude it to be a total failure I'll let you know that too so you don't waste your time.
I did have success grinding one out of glass years ago when I was about 13 my father who is who inspired my fascination of Science and astronomy worked with me and we ground an 8 inch mirror for a simple reflector. Not only was the telescope is self-success and a lot of fun to use it was a really cool experience doing that with my dad if you do decide to grind one out of glass it's a long repetitive process but if you have someone to do it with it can be a lot of fun
@@radc7777 No Sir I have not which is exactly why I do not take a side. I have to the best of my ability tried to offend no one regardless of their opinion and am simply suggesting that perhaps there is more to the story than we know.
Hi excellent work indeed Just i don't understand the need of both sanding and then using the diamond paste Is just sanding not enough? Thank you very much and kind regards Gino
The sanding allows you to take away more material. Diamond paste is very fine. It's essentially a powder. If you started out with diamond paste, it would take you months to get out a scratch, but the sanding does so quickly. However, even the finest of sandpapers is not fine enough to produce a good quality mirror. As a result, you use a rougher sandpaper first to get rid of the large imperfections, and gradually work your way down to finer sandpapers, which take away smaller imperfections, and finally finish it off by diamond paste to produce that shiny reflectiveness.
@@catinabox3048 hi thank you so much for your very kind and valuable advice The mirror finish is just too splendid I understand that diamond abrasive pastes are very expensive I wonder if a cheaper alternative do exist Like some minerals based compounds
If I was to get a few hairline scratches that are not deep on a part the mirror finish, can I polish just that part with a very high grit without causing distortions in the reflection? Or do I need to do the whole piece of metal?
Hi bro I would be happy If u help , I have a metal watch and silver accessories , does it make sense to make them mirror shiny polishing ? How can I make them last longer
![How To Sand and Polish Aluminum To Mirror Finish [Version 2.0]](http://i.ytimg.com/vi/bgtW-kbmQwc/mqdefault.jpg)
![How To Sand and Polish Aluminum To Mirror Finish [Version 2.0]](/img/tr.png)
alors là, bravo !!!! :) :)
ta mante est super belle, j'en élève moi aussi ;)
Thank you so much ❤❤❤❤❤
Nice job! can you do the same for aluminum? as I recall stainless is about 60% reflective of visible light whereas aluminum is about 90% Im trying to make a telescope mirror from a cast aluminum disc.
you did? how did it turn out?
@@radc7777 honestly I'm kind of scratching my head and trying to figure out what I'm doing wrong, the aluminum on its own just doesn't want to take or hold a proper shape for a telescope mirror I keep getting minor asymmetries that I can't seem to polish or grind out it could be that being a solid slab of a highly thermally reactive metal that temperature changes are causing it to deform or it could just be that it's too soft which is probably why they use a good high quality glass then coat it aluminum it holds the form where is the metal is too soft or thermally reactive on its own. If I manage to figure it out and make anything that actually works I'll let you know likewise if I give up and conclude it to be a total failure I'll let you know that too so you don't waste your time.
hello. I watched this video exactly to inspire me to make a telescope mirror. if you find a solution please tell me too. thanks
I did have success grinding one out of glass years ago when I was about 13 my father who is who inspired my fascination of Science and astronomy worked with me and we ground an 8 inch mirror for a simple reflector. Not only was the telescope is self-success and a lot of fun to use it was a really cool experience doing that with my dad if you do decide to grind one out of glass it's a long repetitive process but if you have someone to do it with it can be a lot of fun
@@radc7777 No Sir I have not which is exactly why I do not take a side. I have to the best of my ability tried to offend no one regardless of their opinion and am simply suggesting that perhaps there is more to the story than we know.
Now, grab a circle with 40cm, make it parabolic, polish it, and make a dobsonian telescope with it !
Holy shit this is smooth
Well said!
Hi excellent work indeed Just i don't understand the need of both sanding and then using the diamond paste Is just sanding not enough? Thank you very much and kind regards Gino
The sanding allows you to take away more material. Diamond paste is very fine. It's essentially a powder. If you started out with diamond paste, it would take you months to get out a scratch, but the sanding does so quickly. However, even the finest of sandpapers is not fine enough to produce a good quality mirror. As a result, you use a rougher sandpaper first to get rid of the large imperfections, and gradually work your way down to finer sandpapers, which take away smaller imperfections, and finally finish it off by diamond paste to produce that shiny reflectiveness.
@@catinabox3048 hi thank you so much for your very kind and valuable advice
The mirror finish is just too splendid
I understand that diamond abrasive pastes are very expensive
I wonder if a cheaper alternative do exist
Like some minerals based compounds
How long steel will reflect?
Nice
Luar biasa. Bgaiamana jika ini digunakan sebagai teleskop?
I think it was infinity process..
Can you polish glass lenses with scratched coating?
I imagine doing so by hand would ruin the prescription.
Bright..!
Did you use water at first and then machine oil at paper,?
Лайк за богомола в конце))))
중간 중간 뿌리시는게 뭔가요?
If I was to get a few hairline scratches that are not deep on a part the mirror finish, can I polish just that part with a very high grit without causing distortions in the reflection? Or do I need to do the whole piece of metal?
Schön und gut, aber etwas mehr Erklärung zu den Produkten und Vorgehensweise wäre hilfreich. Es scheint ja ein Mikro vorhanden zu sein.
Make your own sand paper and polish paste called “SHANS PAPER
Can you do it on aluminum sheet?
Отличный канал
Cute pet mantis?
DIK? soundtrack?
🦍 goku forever
Hi bro I would be happy If u help , I have a metal watch and silver accessories , does it make sense to make them mirror shiny polishing ? How can I make them last longer
Nice