WTB used long shank Sapphire/Ruby needles
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WTB used long shank Sapphire/Ruby needles
Hello, I am desperately in need of getting my hands on a gently worn Sapphire or Ruby long shank needle to complete a polycarbonate embossing project. I have tried ordering a new 462 Ruby from Apollo but it was too sharp to emboss. I have also tried every steel needle on the market but they didn't quite hit the target of what I was looking for. Any help is much appreciated! Thanks Aaron... futureclassicmusic at gmail
Re: WTB used long shank Sapphire/Ruby needles
Have you tried tungsten ? Seems be more hard than a normal steel stylus, similar to diamond...
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Re: WTB used long shank Sapphire/Ruby needles
studiorp wrote:Have you tried tungsten ? Seems be more hard than a normal steel stylus, similar to diamond...
Definitely not.
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* Diamond cutting stylus officials/prototypes
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Re: WTB used long shank Sapphire/Ruby needles
Why not ? Is there a specific reason ?
Re: WTB used long shank Sapphire/Ruby needles
...and I guess you should know why because you say that...studiorp wrote:Why not ? Is there a specific reason ?
http://www.myshank.com
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
Re: WTB used long shank Sapphire/Ruby needles
And FYI :
Hardness Substance or mineral :
0.2–0.3 caesium, rubidium
0.5–0.6 lithium, sodium, potassium
1 talc
1.5 gallium, strontium, indium, tin, barium, thallium, lead, graphite, ice[12]
2 hexagonal boron nitride,[13] calcium, selenium, cadmium, sulfur, tellurium, bismuth, gypsum
2.5–3 gold, silver, aluminium, zinc, lanthanum, cerium, Jet (lignite)
3 calcite, copper, arsenic, antimony, thorium, dentin
3.5 platinum
4 fluorite, iron, nickel
4–4.5 steel
5 apatite (tooth enamel), zirconium, palladium, obsidian (volcanic glass)
5.5 beryllium, molybdenum, hafnium, glass, cobalt
6 orthoclase, titanium, manganese, germanium, niobium, rhodium, uranium
6–7 fused quartz, iron pyrite, silicon, ruthenium, iridium, tantalum, opal, peridot, tanzanite
7 osmium, quartz, rhenium, vanadium
7.5–8 emerald, hardened steel, tungsten, spinel
8 topaz, cubic zirconia
8.5 chrysoberyl, chromium, silicon nitride, tantalum carbide
9 corundum, tungsten carbide (and this is information is not really true, tungsten, is around 8 - 8.5)
9–9.5 silicon carbide (carborundum), titanium carbide
9.5–10 boron, boron nitride, rhenium diboride, stishovite, titanium diboride
10 diamond, carbonado
>10 nanocrystalline diamond (hyperdiamond, ultrahard fullerite)
Hardness Substance or mineral :
0.2–0.3 caesium, rubidium
0.5–0.6 lithium, sodium, potassium
1 talc
1.5 gallium, strontium, indium, tin, barium, thallium, lead, graphite, ice[12]
2 hexagonal boron nitride,[13] calcium, selenium, cadmium, sulfur, tellurium, bismuth, gypsum
2.5–3 gold, silver, aluminium, zinc, lanthanum, cerium, Jet (lignite)
3 calcite, copper, arsenic, antimony, thorium, dentin
3.5 platinum
4 fluorite, iron, nickel
4–4.5 steel
5 apatite (tooth enamel), zirconium, palladium, obsidian (volcanic glass)
5.5 beryllium, molybdenum, hafnium, glass, cobalt
6 orthoclase, titanium, manganese, germanium, niobium, rhodium, uranium
6–7 fused quartz, iron pyrite, silicon, ruthenium, iridium, tantalum, opal, peridot, tanzanite
7 osmium, quartz, rhenium, vanadium
7.5–8 emerald, hardened steel, tungsten, spinel
8 topaz, cubic zirconia
8.5 chrysoberyl, chromium, silicon nitride, tantalum carbide
9 corundum, tungsten carbide (and this is information is not really true, tungsten, is around 8 - 8.5)
9–9.5 silicon carbide (carborundum), titanium carbide
9.5–10 boron, boron nitride, rhenium diboride, stishovite, titanium diboride
10 diamond, carbonado
>10 nanocrystalline diamond (hyperdiamond, ultrahard fullerite)
http://www.myshank.com
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
Re: WTB used long shank Sapphire/Ruby needles
Thanks for this table, so for example a tungsten double a steel stylus, interesting...
And about syntetic diamond ?
And about syntetic diamond ?
Re: WTB used long shank Sapphire/Ruby needles
That's a very interesting question... And I'll create a topic soon about that, about diamond stylus and the transformation from a rough to a final stylus.studiorp wrote: And about syntetic diamond ?
http://www.myshank.com
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
skype : steven.myshank
* Diamond cutting stylus officials/prototypes
* Resharpening services
* Blank records
* Cutting lathe
Re: WTB used long shank Sapphire/Ruby needles
I've tried both the one found on Ebay and Farmer John's tungsten stylus' but neither compare to a sapphire IMO
Re: WTB used long shank Sapphire/Ruby needles
That table (mohs?) means low alloyed Steel. High aloyed and hardened Steel which is used for forming metal, wood or plastic whould be much higher situated on this table. It whould be compete with tungsten.