Awesome video as always mate👍👍😀 Steve

Hey, great video. Love the outro!

Awesome to see the old wallet burn i have missed that ! nice video lildude!

@Zenodilodon

2 жыл бұрын

Needs a little more salt and pepper at this point :P

Minor note: I keep calling the "PTC heater" in the OPSL a "thermistor" ( Terminology overload ). To clarify, the PTC heater in the OPSL laser head takes 20-80 ma and uses it to heat the PPLN crystal inside. It's not meant for measurement so make note that if you are using a PL530 OPSL you will need to find the sweet spot in current to set the optimal temperature for the PPLN crystal. Update, after being driven nuts by more problems with getting the laser stable I opened the little OPSL module up. The PPLN was partially de-bonded from the heater and moved in and out of alignment when I moved around the whole laser while working on it. New OPSL module in, less hair being pulled out, works great now as it should 150mw stable! :P

its a very nice dpss!

@suhailab3634

2 жыл бұрын

Those tiny opsls are really amazing

@Zenodilodon

2 жыл бұрын

@@suhailab3634 oh I know, they have some great specs for the price when you can find them. It's crazy they can make a whole OPSL so small!

Thanks for a pleasant Sunday morning break from politics, Zen. Very nice mod with the components fitting inside so perfectly. As always, thanks for such detailed explanations. Enjoyed your arm hair interference 'show'. I'll need to figure out a way to add a hairy effects wheel to my projector. Don't have much arm hair, so I'm hoping that pubes will work, just as well.🙄 Reminded me of my 1st disco installation in Spain, 1979. Due to shipping and time constraints, I had to mfr & build the projection system on site. The SP 165 argon lasers had arrived. My partner and I had one installed on top of a huge 8' tall brick pedestal, but it was only mounted onto an aluminum optical channel. Unbeknown to us, the disco owners had already over-advertised 'the world's best laser show' for that weekend. So after finishing the day's setup work, the club opened and a crowd began gathering around the laser head, waiting to see the show. 🤦‍ "The show must go on." So, we put together a crude x/y mirror steering device, controlled with a wooden stick. We climbed up on ladders and I used the stick to pan the beam around the room to a mirror ball, while my partner used the laser's attenuator to flash to the music. (Wish I had know about the arm hair effect.} For the finale, I stuck a piece of diff grating in front of the beam and we got a big round of applause.😂 Just as an FYI, your text overlays are very helpful and much appreciated. Unfortunately, whenever I it 'pause' to read them, the browser covers them with the video title on top and the progress slider on the bottom, had to read them @ .25 playback speed. Hope that your new business venture is going well. 😎

@Zenodilodon

2 жыл бұрын

Everyone needs a break from politics these days lol. Yeah the mod went together really nice and I still have some space to sneak in temp regulating hardware as soon as I figure out what I want to make to control that. I am sure any hair will work, even pubes, though I don't think they will smell as good if they start burning lol Your disco show story is great! I can't tell you how many times I had to last minute something together back when I first started with laser shows. As you say the show much go on :P I remember we ran out of trussing at a show so I was like... hey we can just put the laser truss on the scissor lift right? Got the whole set up all wired and in place about an hour before the show... then had to take it all down because the stadium needed to use the lift. We scrambled to find every empty touring case we could find to make stacks the lasers could sit on. Are you viewing on mobile? I don't see the overlays on PC but I will certainly make note of it. If you can send me a screen shot of where you see the text being blocked I will make note of that and position future text in a more fitting area. Thanks for the feedback! The business is going well, worked on 4 lasers this week, got more arriving as well. I think I worked on about a dozen units in the last 2 weeks. Looks like we are going to launch a repair channel for show lasers under the business name so those repair videos should eventually be a thing. You all get to see my actual work desk and not my home shop desk eventually.

@TheOleHermit

2 жыл бұрын

@@Zenodilodon "....don't think they will smell as good if they start burning" LMAO! Never thought of that, but was wondering whether the interference patterns would be curly. lol "temp regulating hardware " When you figure it out, that would be a very interesting video, IMO. Glad you enjoyed my disco saga. Likewise, but I was expecting you to say that the hydraulics let the scissor lift sag to the stage in the middle of the show. Nope, I watching on a Winblows 10Pro miniPC (LSX controller) & MS hEdge browser. Your screenshot is 'in the email'. Glad to hear that your business is getting off to a good start and that more repair videos are on the cards. Don't think we've heard what the business name is...🤔 Saving it for a big launch party and reveal, perhaps? Catch ya later, laser buddy. 😎

We need to get you some gold wire and a spot welder 😂 That ending 🤣 what stopped it getting so high before? I'd apologise for my mass of comments but you covered a lot of ground!

@Zenodilodon

2 жыл бұрын

No idea, this OPSL unit has given me issues constantly. Usually they come right up to power after messing with the PTC heater on the PPLN for a few minutes. I did hear a small crack/pop noise when I was initially connecting the PCT up to power so my best guess is maybe I de-bonded the PPLN crystal from the laser substrate and it's kind of floating in place held by the heater bond wires and the location shifted slightly back into place for the higher power output. Since then I have had no luck with getting it past 20mw again. I took it to the shop, hooked it up to proper TEC drivers and played with it and still like... only 20 mw. No idea. It could be as simple as the tuning on this laser being that ridiculously precise ( I doubt it ), driver issues with pushing the current, or physical damage inside of the OPSL. I am going to check it out when I get back from the shop in my free time and see if I can hunt down the problem. I have played with a few of these OPSL modules and never had such a troublesome time with one. Tis ok I have like 5 more left to mess with so if the one I put in is bad I will just replace it easily enough.

@phonotical

2 жыл бұрын

@@Zenodilodon them them all in! 🤣

That's a tiny OPSL. I believe it was designed to be used in laser projectors?

@Zenodilodon

Жыл бұрын

Yup, it was in the ShowWX, I covered that projector in another video.

Hi, What size of adjustable pot are you using on this modified driver to adjust the output voltage? Thank you.

@Zenodilodon

2 жыл бұрын

10k, I swear it's in the video but probably whizzes by quite quickly lol

@peterzeboroff7448

2 жыл бұрын

@@Zenodilodon Hi, you did, I was listening to some battery powered speakers and they chose a very inconvenient time to go dead and when these batteries charge, the amount of noise from the charger makes listening to the speakers almost impossible.

Hello! Is it possible to boost up power of ordinary green laser pointer for metal engraving? Is it possible by replacing infrared pumping diode for higher power?

@zaprodk

2 жыл бұрын

You also need to replace the pump optics or you'll destroy it. Green light is not usable for engraving metal. It's reflected.

@peterlents983

2 жыл бұрын

@@zaprodk Yes, but if we remove frequency doubling crystal we can get 1064 nm radiation which is ok for metal engraving. It's would be very interesting to see such a project.

@Zenodilodon

2 жыл бұрын

@@peterlents983 The power required to engrave metal pretty much exceeds what could be put into a laser pointer. Even the strongest available 7W blue laser diodes struggle to touch metal.

nice sir, how much power do you think has it?

@Zenodilodon

2 жыл бұрын

The rebuild is capable of 150+mw

DE-15HD :)

@Zenodilodon

2 жыл бұрын

All my brain could think was... crap I know it's not VGA... don't say VGA lol

@zaprodk

2 жыл бұрын

@@Zenodilodon You know what? I've seen a set of computer speakers where they used this connector for an umbilical cord between the controller and the sub - and they wrote VGA next to the connector AND they used a skinny modified "VGA" cable. If that is genius or utterly stupid i'm not sure though :D

nice :)

@ethanslab7670

2 жыл бұрын

i changed my name from fake alia not into TheGodlyStrider because im making minecraft videos :D

Two cylinder lenses, would that make a rather bad square? It sounds like an experiment without any thought, how do they then correct for that, 😂

@Zenodilodon

2 жыл бұрын

2 cylindrical lenses act almost identically as a round lens. You can see the effect by overlapping something like wine glass stems over each other perpendicularly. The use of different lenses, each with a radius of curvature to suit the axis can make for a much better beam from larger laser diode emitters.

@phonotical

2 жыл бұрын

@@Zenodilodon I've seen it but the corners seem to get a bit strange

those are prety nice lasers not super powerfully but that can be sorted lol

@Zenodilodon

2 жыл бұрын

Power is one aspect to admire in a laser, but I am really enjoying speckle in my old age lol.

@martijn4740

2 жыл бұрын

@@Zenodilodon i need to get back to the laser hobbie to used to have loads of them im still sad about my coherent compass that whas a nice laser until i smashed the brewster plate by accicent

@Zenodilodon

2 жыл бұрын

@@martijn4740 Hmm, do you still have the compass? They are pretty clean units and very narrow bandwidth. I have never opened one up though. It has a brewster plate n it? I see those in side pumped ND:YAG but not linear configurations. If it's not side pumped it might still run without the brewster plate though with a loss in polarization quality. Not sure, would love to find out lol.

@martijn4740

2 жыл бұрын

@@Zenodilodon no sadly not its been gone for atleast 15 years now yep it did and did not lase green without it sadly. tried remounting it but gave up eventualy they had amazing beam quality

I liked the intro!, the struggle for the right sized bit is real, sometime si have to grind my own 😂 Their ptc elements were open(no seal around the edge) doesn't that make them a little more susceptible to failure or breaking apart? Is there a coating on the gold bond wires? I'm wondering how big you could make one, is it the crystal on top that makes the light output, could make one about an inch wide? Every time with that razor blade my balls shot back up inside my body 🤣 donnntttttt cut yourself! Hd15, hmm, what part of that plugs into my windows 98 machine? (what modulation method were you using, I thought it would be a signal, but what signal are you sending, 5000hz?) Can you make interference pattern also with heat I thought the purple window might be a cut filter, I've seen the effect on some things I've had in the past, reacts with air like a bitch, I guess my example may be a coating opposed to internal filler

@Zenodilodon

2 жыл бұрын

The intro worked well. I learned that my hidden talent was making thunder noises with my mouth lol The laser unit is pretty well put together initially and the delicate parts are pretty much dust proof so it's all good. No moisture sensitive parts to degrade. No coating on the bond wires, no need for it. The part that makes the laser light it pretty small, but they do make ones that are like 20mm wide called " bars " which got up to pretty high power output levels such as 40W Personal injury is a life choice, YOLO Modulation can be anything from 0 to 30khz, but these are also analog to speed and voltage level both have effects. I am using a steady signal but changing the voltage level 0-5 for brightness. 15 something... ~ laughs in Count ~ To have an effect with heat you would probably need a heck of a lot of it to distort enough air for an effect.

@phonotical

2 жыл бұрын

@@Zenodilodon thank you for your reply 20mm,id like to see that!

Argh! My 3 watt RGB laser projector just burned a hole straight through the 'protective' black commando denim, flame retardant coated roller screen and through the outer surface of my 4K flat screen TV.😱🤯

@Zenodilodon

2 жыл бұрын

YEAH SCIENCE!

@Zenodilodon

2 жыл бұрын

Metal beam stops are pretty much mandatory above 1w. I want to make a T-shirt that says " I survived the great laser ware of 2050 " and burn in authentic laser holes. It would match my other shirts!

@TheOleHermit

2 жыл бұрын

@@Zenodilodon Yeah, really. I should've been more careful, while trying to get an image together. The raw beam was only there for a few seconds, while applying the Pre-move X&Y (exactly like cmb did during his LSX tutorial, Part 5. To be fair, he did say that the raw beam is dangerous and is proven to be absolutely correct.). Expected more protection from the flame retardant. Now there's a clean hole with an opaque melted perimeter in the clear plastic surface, so I'm not sure whether the actual TV screen was damaged. Might be able to carve down the ridge and attempt to fill the hole with clear glue. But, that would probably only make bad matters worse. Scrape the opaque ridge and call it an, "Oh F'ing well," I reckon. smh Lesson learned.😢

@TheOleHermit

2 жыл бұрын

@@Zenodilodon Knew some English laser buddies, back in the early 80s, who were doing a show in an old theatre on a Greek island, with a 20 watt argon. They said that the beam was only hitting a Par 64 can, but the stage curtain caught on fire during the overnight setup. The entire show crew were locked inside the theatre and only made it out alive because a passerby heard them pounding on the stage door and broke the padlock. The historic building burned to the ground and my buddies were confined to the island for several months, until they attended a court hearing for damages. Fortunately, there was insufficient proof of guilt and they were allowed to return home.

@Zenodilodon

2 жыл бұрын

@@TheOleHermit Is the mark on the screen itself? it is LCD?

1:04:53 My wallet looks like that too.

@Zenodilodon

2 жыл бұрын

Probably has a similar smell as well.