good news and bad news!

[maximoscortes2]

hi trolls

I recently went from a presto 5c head, to a presto 1d and cutting needle, my first time cutting, previously I had only recorded with the Russian alextation needles, obviously the change was gigantic, as the hiss grew also the recording level increased Considerably, I was doing the first tests on acetate sheets that they sell in my town at a cheap price, it was cutting without problems until the needle broke, I checked the needle with my usb microscope and the tip died, I don't know if it was bad handling, (I have a k8 lathe), or if the material I was cutting was too hard for the sapphire needle,

I write this post to find out if someone went through the same thing and to see if there is any tip not to break the needle so quickly,

Thank you very much in advance for all your knowledge,

andrex


espanich:
recientemente pase de un cabezal presto 5c, a un presto 1d y aguja de corte, mi primera vez cortando, anteriormente solo habia grabado con las agujas rusas de alextation, obviamente el cambio fue gigantesco, asi como crecio el hiss tambien el nivel de grabacion aumento considesablemente, estuve haciendo los primeros test en laminas de acetato que venden en mi localidad a un precio barato, estuvo cortando sin problemas hasta q la aguja se rompio, revise la aguja con mi microscopio usb y la punta murio, no se si fue por mala manipulacion, (tengo un torno k8), o si el material q estaba cortando era muy duro para la aguja de zafiro,

Escribo este post para saber si alguien paso por lo mismo y para ver si existe algun tip para no roper la aguja tan rapido,

de antemano muchas gracias por todos su conocimientos,

andrex

[emorritt]

Any plastic media; sheets or discs cut from acrylic or other plastics will damage a sapphire stylus quickly. I've found for the most part it's because sapphires that are meant for cutting lacquer have burnishing facets. They work fine for lacquer, but plastic will damage the stylus tip quickly; that's what causes the increased noise. If you can locate old sapphires made for consumer lathes which didn't have the burnishing facets, they might work well, but I've found that old stellite cutting needles are pretty good for plastics. They don't have burnishing facets and neither do diamonds currently made for cutting plastics.

[maximoscortes2]

Hello, thanks for the answer

I have been looking at aliexpress machines to face stones, I don't know if they will work, there are relatively cheap ones, I have a lot of Russian sapphire needles that could be sharpened, if I can sharpen them, it would be one less worry and I could cut cheap materials

I think it is a good idea, as long as the Chinese machines meet the objective.

!!!