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    depends, ceramics covers a lot of evils

    depends, ceramics covers a lot of evils
  2. 391749 I live in a country that believes this...

    391749

    I live in a country that believes this is art worth several $100,000's, when it comes to music...we are without all hope
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    Solid Works is insanely complex for a first...

    Solid Works is insanely complex for a first package, something like Rhinoceros is a lot easier (and a LOT cheaper) for a first foray into 3d modelling
  4. Nope, won't help at all, the reality is to cut...

    Nope, won't help at all, the reality is to cut metal properly you need minimum 300 watts in a Fibre and better still 500 to 750 watts.

    No substitute for raw power and fast gas to be honest :)
  5. Cheers Matt, it's really difficult to explain in...

    Cheers Matt, it's really difficult to explain in reasonable terms without assuming a reader understands things that contribute to it. I try my best but sometimes it still comes out as...
  6. errruuugghhhh umm It's rather complex and there...

    errruuugghhhh umm It's rather complex and there is no specific answer as a LOT of factors affect it

    Wavelength, Photon Energy, Material Absorption Coefficient, Pulse Energy, Emitted Power,...
  7. I did note all the fans trying their hardest to...

    I did note all the fans trying their hardest to justify what happened or disprove the evidence in the picture "Too much soot, must have been cutting something they were not supposed to"

    Or maybe...
  8. Totally different wavelength David, 532nm is...

    Totally different wavelength David, 532nm is green and the beam is a much thinner wavelength (it's 532nm wide) so the smallest focal spot you can achieve is orders of magnitude smaller, you cannot...
  9. Kerf is a product of Incident beam diameter,...

    Kerf is a product of Incident beam diameter, focal length and M^2.... Excitation method helps on cheap vs expensive tubes but being glass is for a simple reason...it's non conductive in DC lasers
    ...
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    2W lasers are usually 445's, likely the most...

    2W lasers are usually 445's, likely the most dangerous wavelength available to private citizens
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    Jeff, being quite honest mate, unless you have a...

    Jeff, being quite honest mate, unless you have a fair bit of laser experience I would avoid anything remotely near 445nm lasers...they blind for fun and the damage they do is permanent
  12. Thanks folks....I know Jean and Philip and please...

    Thanks folks....I know Jean and Philip and please believe me, they are orders of magnitude above anything I would ever consider debating. They are top tier experts in their fields without any doubt....
  13. Folks tend to ask me questions and seem to think...

    Folks tend to ask me questions and seem to think I know what I'm on about...forget that... Phillip and Jean are Mr & Mrs laser...I am just the student...these folks are the professors :) (and Hiya...
  14. RF travels through ceramics more easily than it...

    RF travels through ceramics more easily than it does through metal so the input power / conversion factor will be better, the problem will be getting rid of the excess converted heat
  15. Biggest problem is heat management in any laser...

    Biggest problem is heat management in any laser core, ceramic doesn't conduct heat well at all, it's strong and you can get some very high temperature ceramics that will stand thousands of degree's...
  16. It's also not really anything new, in the late...

    It's also not really anything new, in the late 70's ION lasers used ceramic coated metal tubes, all the worlds industrial's at the upper end use aluminium with a forced ceramic coating on the inside...
  17. Yes they do leak, yes it is from the bond on the...

    Yes they do leak, yes it is from the bond on the optics and at the gas valving.It's why big industrial's tend to be flowing gas types not sealed units. (it also means you can vary the gas mix)(There...
  18. The one that is currently set to "Null" Just...

    The one that is currently set to "Null"

    Just been dealing with exactly this kind of problem for somebody this week with the same non firing issues
  19. Set port numbers to 5 or 15

    Set port numbers to 5 or 15
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    Fun but pretty pointless in reality

    Fun but pretty pointless in reality
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    Water Bert, same as you would clean mirrors with...

    Water Bert, same as you would clean mirrors with to remove soot, a lightly damp cloth and a light rub will do it
  22. Kev's got it pretty much covered RF's provide...

    Kev's got it pretty much covered

    RF's provide a better beam profile in most cases so you tend to be able to use more of the available power, RF's fire orders of magnitude faster as well, in effect...
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    So is Chinese rubber simulated dog poo and cut...

    So is Chinese rubber simulated dog poo and cut out face masks of the Brady Bunch
  24. Shadow projection, low intensity directional...

    Shadow projection, low intensity directional light source behind the object throwing a shadow onto grey matt paper (not white) then trace
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    Kev's link goes to Cole CNC on ebay, good company...

    Kev's link goes to Cole CNC on ebay, good company and reliable

    The earlier 5000's all had the dissimilar metal problems, stainless to aluminium joints, but they solved that in the later versions.
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