I just got my G8 lens and was trying to install it per your instructions when I found out that Ortur must have use some kind of compound to lock the barrel in place. It was hard to remove to start with. If you look at the adjusting knob with a magnifying lens you will notice what appears to be some kind of plastic on the internal threads. Scrape that off with a small screw driver taking care not to mess up the threads. Your new barrel will now screw in without a problem.

How would I get a barrel focus part if I do not have a 3D printer? I have a G8 and the original lens did not unscrew even when I used wrenches to try to do it. Excellent Channel and information. Thank you

I DON'T UNDERSTAND... how your channel doesn't more subscribers... the content is awesome, you have an understable voice and the products you show excelents... somebody tell me... WHY!

@DIY3DTECHcom

3 жыл бұрын

It is called the KZread discovery feature (or lack there of). Unless you can get YT to promote your videos in discovery it is an up hill battle! However thank you for the kind comments! :-)

My g8 just arrived today, My barrel is stuck inside the focus wheel/attachment any suggestions on how to get it out without destroying the original barrel?

Hey when and why should i change the lense? are there better ones for Ortur LM2 (got this one 15W) or can it wear out?

The barrel on my 20w ortur is totally different and I can’t figure out how to even remove the lens so I can swap it out with the G8. Have you dealt with this issue?

I was unable to take the barrel off my standard lens. Are some glued in or permanently attached?

what does the retaining spring look like. I don't think mine had one or i lost it!

Are you spying on me????? I was literally trying to figure this all out less than an hour ago! Brilliant video and brilliant timing!

@fierceflyer5

3 жыл бұрын

Paul Kavanagh it’s either Alexa or Siri 🤣😂

@DIY3DTECHcom

3 жыл бұрын

LOL! Like I say I get one or two every day so your not alone!

just came up with an idea, I have a fixed lens in the ortur 2 so the option of changing the lens it has gone for me . but in a brain wave my father in law had some old bi focal glasses, so I have a red laser pointer and tried out pointing the laser through the glasses lens to find out what it would do, tried it on the ordinary piece of the glass lens and had no effect, but when I tried shining it through the bi focal bit on the lower section of the glass lens I noticed it got a tiny bit smaller, so thinking about it , I thought what would happen if I put the two lenses back to back.well I took out the 2 lens from the spectacles and glued the lenses together and so I basically had a convex lens with a highly magnifyed close distance focasing bit and where the bi focal bit on the 2 lens is. put it in front of the red laser pointer to see what it would do, it reduced the laser down to a very fine spot. I have not tried it with the ortur 2 yet as I am busy finishing building the housing to collect the fumes. I will let you know how I get on when I have it all together again. Incidently I came up with a clever way to get rid of the fumes quick. I was going to put a fume extractor on the machine housing but as money was tight I sat there and thought what I could do about it. Well I have an old vacuum cleaner that is like a Henry vacuum cleaner but mine expels the pressure going into the vacuum cleaner out of an outlet on the opposite side of the vacuum cleaner, you can use it if I remember rightly by disconnecting the vacuum hose and putting it in the blower side to use as a connector for pressurising an air fed spray gun if you want to use it for that.So the vacuum cleaner blows out one side as it vacuums up on the other side . well it came to me in a brain wave. I connected the vacuum into the housing of the laser compartment , got hold of another hose and at the same time connected that to the blower side of the vacuum cleaner and put that into the opposite side of the housing and i had made a basic wind tunnel using the same machine but instead of just vacumming I am using both sides of the vacuum cleaner,the inlet and the outlet; both at the same time, I have a filter in the vacuum itself and so the air coming out of it is filtered works a treat. instead of waiting for the fume to be caught by the vacuum, it now as soon as it is produced the incoming air is pushing the fumes towards the vacuum outlet . just a hack but worked out great.

Awesome video as always. Would really love to see a video on how to clean a lens proper.

@DIY3DTECHcom

3 жыл бұрын

Great suggestion!

@TheRealKingDong

3 жыл бұрын

@@DIY3DTECHcom thanks I see it asked on the ortur facebook group all the time.

@VeeSwan

Жыл бұрын

LA Hobby Guy made a video on lens cleaning

I lost the spring inside , do you know where I can order a replacement??

Where can i download the barrel for the G8 lens from this video?

After fixing the barrel, how far should the end of barrel be from object to be burned?

Have you done a reference table for burning on wood ? For power and speed settings. And type of wood ? I'm finding it hard to get a consistent engraving setting. But I do use the free software and not Lightburn .

@DIY3DTECHcom

3 жыл бұрын

I have created a number on cutting however not engraving. Also note engraving will quite a bit so I doubt consistent setting is possiable, however more so a range.

@frameshifted1999

3 жыл бұрын

@@DIY3DTECHcom ok. Thanks for response. I have since purchased Lightburn , and still run into images not showing clear and wasting more wood than I liked to. I appreciate people like you that make these vids , but nothing clear in regards to speed , power , dpi etc for images for the 15w Ortur I have.

How do I get my barrow out to put the G8 len in?

trying to make my own copper module to fit in my M9x0.5mm g8 lens. But the metric system does not tell us *how many threads are in per cm/inch* for G8. Pls help me if you know that

Rest in Peace. Your videos will be greatly missed.

Maybe it's just me, but clicking on the lens links in description doesn't seem to get me there. I get a page with ad links for hardware stores....

Thank You, you are great. I much appreciate it. Best regards.

@DIY3DTECHcom

3 жыл бұрын

You are welcome!

I've seen where most people had a loose fit between the G8 barrel and original thumb screw. Mine fit snug and went in like it was supposed to be there. Now I'm nervous it's not right.

@DIY3DTECHcom

3 жыл бұрын

Most do find this to be the case, possibly you got lucky! :-)

@finalaccuracy7695

3 жыл бұрын

@@DIY3DTECHcom fingers crossed. It seems to focus good and so far good detail on Balsa

@thearthound

3 жыл бұрын

How far did you screw it into the focus ring?

Does anyone know how far you should screw the G8 barrel into the focus ring?

@DIY3DTECHcom

3 жыл бұрын

You mean the laser? It will depend on the barrel and how far away your focusing...

@thearthound

3 жыл бұрын

@@DIY3DTECHcom No, I'm wondering how far to screw the barrel into the focusing ring before screwing that into the laser itself.

another funny thing, notch of the laser barrel you say must go down, and it is well true but lens in 7W laser got notch fitted into the laser, very strange. What is more strange is the fact that after many testing, stock lens in my 20W is rubbish comparing to stock lens in 7W model. But when in 20W I put with G8 lens that was whole different story but still not as great as 7W on it's stock lens. That is very interesting as such not gives me to much answers why is that this way.

the picture shows 7W model which has far different barrel to 15W and 20W models, that is why it was much confused. When I tried to swap barrels between 7W and 20W it can not happens it is because 20W screws like G8 lens or G2, while 7W laser lens is screwed by that black outside part that holds lens barrel inside. Well that was main reason that confused me, now when have 2 different lasers on house, and could find it out myself I know why I asked you a question how to fit g8 to laser, the answer is simple, it can not be done in 7W model, but works only for 15w and 20w from ortur. It may work perfectly with other brands but here is not. cheers.

I’m having trouble getting my barrel out of the holder on my Ortur 20 watt laser, any suggestions? I’m also having a hard time getting the G8 lens into the 3D printed knob I ordered. Can’t get one out to reuse the holder and can’t get one in to use the new holder. Stuck.

@DIY3DTECHcom

3 жыл бұрын

I need to ask, do you have the fixed focus or variable focus module. The variable focus you simply screw out and the fixed well I am not sure it is "fixed" as the name implies...

@michaelguidry6893

3 жыл бұрын

@@DIY3DTECHcom I’m not sure, it’s the one that came on the Ortur laser 20 watt. I can adjust the focus while it’s in the laser but the barrel doesn’t seem to unscrew so maybe it is fixed. That would explain it. Thank you for your response and for the videos. I really get a lot out of watching them.

@whiteli9htnin

3 жыл бұрын

I am having the same issue as you Michael. were you able to find a solution?

@whiteli9htnin

3 жыл бұрын

@@DIY3DTECHcom If you do have the fixed module is there a solution to changing to the g8 lens?

@michaelguidry6893

3 жыл бұрын

@@whiteli9htnin so far not yet. I think it must be a fixed lens holder. So now I’m trying to find another G8 lens holder. Where I bought the first one from s now out of stock so I need to find someone that 3D prints the holder.

does this mean you are not goin to change to the new wattage laser?

@DIY3DTECHcom

3 жыл бұрын

Why do you ask verses this video? It simply discusses changing the lens barrel. However since you are a regular I have a LOT going on in the laser area! So I have brand new Ortur Laser Master II 20 watt unit which you see soon, I also totally rebuilding my original Ortur Laser Master with a GRBL controller, a Z-Axis for variable depth cuts and larger laser (this will be a diode monster) as well as build variable Z-Axis scissor bed for the k40! The down side is I have to go in a week for some major surgery which will keep meout of the shop at least three weeks. :-(

@IronMan-yg4qw

3 жыл бұрын

@@DIY3DTECHcom sorry to hear about the surgery. get well soon.

OK, so I'm one of the people with a stuck OEM lens barrel glued into the focus ring. This is what I ended up doing: I have a bench vise with TPU 'soft jaws' in them. I was able to snug the vise down on the barrel to the point where it wasn't going anywhere and also wasn't being crushed by the vise. One thing was certain and it's that the barrel wasn't going to budge without a lot of coaxing. I wrapped the focus ring housing in cloth and _lightly_ clamped some self-locking pliers (Vise Grips) around it. Then I tapped the pliers with a metal hammer so the shock would break free whatever was in there locking the threads. After about 6 sharp but gentle taps, it broke free and I was able to unthread the lens barrel without damage. Upon closer inspection, it looks like they used regular cyanoacrylate 'super glue' in the housing. It wasn't a lot, but it did the job, that's for sure. This is on a 15W Ortur LM2 I purchased about a month ago. This thing is great fun, BTW. I'm just experimenting with different focal lengths. I hope this helps.

@DIY3DTECHcom

3 жыл бұрын

This is interesting and thanks for sharing!

#FixedFocalDistanceGang

If you have a fixed focus do not do this

Would have been nice to actually show us "how to" instead of telling us. No disrespect. Hope this doesn't sound rude.

That bot voice at the end of the videos is so annoying, the only word I can understand is "projects" right at the very end

@DIY3DTECHcom

3 жыл бұрын

Sorry, her and I go way back...