Diode Lasers ....Under the Hood 26 @SarbarMultimedia

Uploaded November 2024 | Updated September 2026, 1 week ago

After the previous session demonstrated that there was a variable spot size dependent upon exposure time, it implied that the beam did not have the uniform intensity of a stage spotlight. In this session we investigate the true nature of the INTENSITY profile of my beam and what that means for damaging various materials
Understanding the beam is but one aspect of understanding diode technology. This session also demonstates how important it is to understand the make up of various materials and how they react to laser light. It may suprise everyone to know that 455nm light is incapable of cutting or marking wood. WHAT???? Seeing something happen is not the same as understanding what is ACTUALLY happening. The Almighty physicist is a master of deception. So let's discover his secret.

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$Buying Your First Laser Machine This is not a machine comparison video thats helps you choose the best machine. No, this honestly discusses the key points to look for in your new purchase and all the dishonest marketing and sub standard products that are being sold. At the budget end of the market , any machine you buy from flea bay will be built from many B grade components. The machine will work in some way but as a naive newcomer to the technology it is likely that you will be blaming your lack of technical prowess for the poor results you achieve. You have nothing to compare it with and it is the fascination of owning a super high tech LASER machine that is being exploited by the Chinese as they sell you a sub standard version of your dream. Dont assume this is a total scam because if you choose the right basic mechanics, despite the substandard main components, you are getting a basic CNC machine at a bargain price. Add about 25% of the purchase price for a new tube and spend some time setting the machine properly and you will finish up with a reliable piece of kit for a fraction of the price you will pay for a supported plug and play machine imported via a third party local company. Here, the facts about the industry are laid bare and I hope this will help you negotiate the purchasing minefield you are just about to enter. It is really a matter of choosing the least worst. I have had 6 years of amazing fun from this technology even though I admit to being one of those naive dreamers when I bought my first mahine.$