Guest
Show Posts
6851
Show"N"Tell ( Your Machines) / Re: The Laser Project.
« on: March 30, 2011, 03:38:21 AM »
Hi Sam,
I took your advice and had a long talk with SK.
Glad I did really because he says that my whole idea is rubbish because the Aztecs never did subtract from 5 in the same way that the Romans did in their number system, he says that from the evidence available they only used addition.
This throws off my whole design and concept, so I think it’s back to the drawing board before I even get around to the hands. SK says he is going to help me to get the numerals right next time (he is still thinking about the hands).
Hi JungleStreetRecords,
My laser operates at 10600nm and at this wavelength color filters don't actually exist (this is well outside the spectrum of colored light). Even the focussing optics have to be made from special materials such as GaAs or ZnSe otherwise the transmission losses would be far too high and cooling of the optics would start to become a major problem. Fiber optics don't work well in this range although there are some made from Zinc Selenide but these are well beyond my price range. Shame really because if it wasn’t for the Chlorine gas I bet I could cut a mean track in a record blank.
Tweakie.
I took your advice and had a long talk with SK.
Glad I did really because he says that my whole idea is rubbish because the Aztecs never did subtract from 5 in the same way that the Romans did in their number system, he says that from the evidence available they only used addition.
This throws off my whole design and concept, so I think it’s back to the drawing board before I even get around to the hands. SK says he is going to help me to get the numerals right next time (he is still thinking about the hands).
Hi JungleStreetRecords,
My laser operates at 10600nm and at this wavelength color filters don't actually exist (this is well outside the spectrum of colored light). Even the focussing optics have to be made from special materials such as GaAs or ZnSe otherwise the transmission losses would be far too high and cooling of the optics would start to become a major problem. Fiber optics don't work well in this range although there are some made from Zinc Selenide but these are well beyond my price range. Shame really because if it wasn’t for the Chlorine gas I bet I could cut a mean track in a record blank.
Tweakie.
