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@caslor2002

4 жыл бұрын

Hi You can upgrade the laser to work better.. Just add an Z axis to the laser mount.. You can add also a microswitch under the laser. So every time it resets can attach to the cutting material and then reposition to the pre-cut height. After the end of each loop the laser will be lower at the height of your choice and so the cutting edge of the laser beam will be in the right focus

@justintan7817

4 жыл бұрын

Thanks for this very detailed video and subscribed. This electrical power 15W one, could engrave stainless steel, but it need to use the marker pen to paint black the serfuce of the stainless steel, to adovid reflection. Also, it would be better to adjust the focusing to be as close as possible to the lens.

@IldefonsoZanette

4 жыл бұрын

Thanks for the review. I couldn't find the link for better safety glasses.

@madzak9847

4 жыл бұрын

You cant cut wood or plywood with this laser without the compressor, use one from cheap chineese soldering station and a needlе for ball pumping at least it will go 1000 times faster , i cut 3 mm plywood with chineese 1 w laserpointer and sodlering station compressor 6 loops on 150mm/min

@hobbytime8041

4 жыл бұрын

Hey. Great video. Could you please share link for good quality recommended protective glasses? :)

I know I'm late, but I've got a tip for cutting through wood an the plastic: Lowering the speed is not always good. It leads to charing and melting, which makes the material harder to cut. If you move faster with more passes instead, you don't get these effects as much, and can achieve harder cuts.

@thomasrussell4674

2 жыл бұрын

Correct

10:34 for cutting thick materials with a laser you need z-axis control. Lower the laser for each pass to stay in focus.

Until now I’ve been searching for weeks looking for informative videos on laser engraving and found mostly junk content. Your video is one of the best and most descriptive ones I’ve seen about anything in years. Your ability to deep dive and answer questions I didn’t know I had is a skill not often found. You just got another subscriber. Thank you for your help.

@KimStrandberg93

2 жыл бұрын

except he doesn't know what he's talking about.

To echo @Jo Flo More passes at a faster speed is usually better than less passes at slower speed. A few more tips: Fixed focal lengths are a bit less stressful, but also less flexible. I use a 7w with a variable focus, mounted to a 3018 with Z axis. I'll set my Z home as far as possible from the material surface while still able to focus the beam properly. The reason is because the longer the beam before the convergence point, the narrower it will be immediately above the focus. With that, you can cut deeper into material--the previously cut material above doesn't interfere with as much of the beam, as it would with a wider beam due to focal point closer to the module. I use the 3018, but there's nothing specific about that spec that is better or worse than another. The important part is the Z axis. I can generate my gcode to lower the Z by a few micrometers with each pass, keeping the focal point at the material. The rate of Z adjustment is different for each type of material. Some materials, like wood, produce ash when burned in the cut. After several passes, the ash will completely block the beam from being able to penetrate deeper. The ash also glows, therefore radiating the thermal energy to the sides and causing unwanted results. I use 2 strategies: a relatively high CFM fan to blow ash and smoke (which cools into soot/ash) away; and I configure break points in my gcode so that I can take a moment to brush the cut path before resuming. Hope these help!

A bit of compressed air might help with wood cutting. There's a lot of smoke coming right off the hot spot, which is absorbing/blocking/defocusing the light.

@fruechtekorb

4 жыл бұрын

That right. Even on a 40W CO2-Laser compressed air makes a difference of several mm in Wood or PMMA.

@truantray

4 жыл бұрын

Which is why proper laser cutters have an active air exhaust. And, you do not want to breathe those fumes.

@frankhovis

4 жыл бұрын

It also (with diode lasers) makes a big difference what's underneath the wood your trying to cut. The only reliable way I have of cutting some 3mm "laserply" on my so-called 5W laser is to sit it on top of some paxolin PCB I had laying around. This half melts when the laser hits it and reflects the heat back up into the cut enough that I get smooth clean cuts 99% of the time. The only issue I have now is I'm not sure what that would be giving off as fumes (I work well ventilated) and also I'm running out and don't know where to buy any more or what else would work as good as it for a base plate.

@MrMoo272

3 жыл бұрын

even a fan would help

@SohanSardar8064

2 жыл бұрын

Price

OMG thanks so much for this review. I was about to buy this machine for clear acrylic. Good to know it doesnt work with it. Youre the first one I saw with honest review

13:40 Thank you for helping - everyone who sells this equipment guarantees that it makes markings on the metal - and you could confirm that they don't ... thank you for saving me some money. Hug from Brazil !

@vamps_vids

4 жыл бұрын

it is possilble... but you need a special paint for that.

Nice video, but at the copper engraving, you need to paint it black the pcb and engrave the negative of pcb, then you throw in acid for corrosion

If you had a platform (z) and an air nozzle attached setup to clear the debris, you might be able to cut thicker materials compensating for both the focal length and the debris that clogs up deeper cuts.

The issue when cutting through 4mm balsa is from the nature or your "cutting element" the laser is manuly focalised on the top or the material. When it has cut two mm, the laser isn't focalised in trench and the material needs more and more energy to cut because instead of focusing thé energy in a tiny spot to burn a little piece of material, it is burning a greater surface. It would has been useful to have a Z-axis to lift down the laser after each loop and keep the energy/surface ratio constant Edit : I had not seen the explanation before posting m'y comment Maybe, try to focus the laser in the middle of the material instead of the surface

@MrMoo272

3 жыл бұрын

This is correct. To add to this, instead of focusing the laser in the middle before you start, do 1 or 2 passes with it focused on the surface then refocus the laser to the "new" surface a couple of mm down, keep repeating the process until you've cut all the way through the material. The more you do it between passes, the better the cut will be as long as the material or the machine head doesn't move.

This is truly one of the best youtube channels ever . This guy even inspired me to make my own tech channel . Hope you reach 1M subs ❤❤❤

"What's up my friends to this new video!" Best intro ever.

Steel needs to be coated with moly lube. Then it'll etch.

I really like the Italian like English accent..It's crystal clear and sweet

I've been doing test cuts on different materials. Chipboard, Modeling Plywood, Basswood (from Linden trees). In different thickness. The plywood is the toughest. I think it has something to do with the glue between the layers. Basswood. Blows through Basswood like a its air. Chip board cuts really clean but the engraving is very fragile. I really need to build a fence system and clamps so I can take parts off the machine and register them for secondary operations. I'm more interested in structure building in HO scale. The engraver will be used to engrave brick patterns for walls with the brick patterns interlocking like finger joints. Just draw up all CAD drawing with the same start point.

Definitely need to have a Z-axis, even on a laser so as you go down the material, you can step the Z down. Plus, you can focus as 50mm from the object and raise the Z for thicker material.

To cut thicker materials you need z-axis or automated adjustable focus to move the laser focus down through the materials. You are correct in that 435nm does nothing on clear or white. And in fact most metals act like mirrors for infrared (heat). This is why laser cutting metals is so difficult. Great video and comprehensive!

Could you try cutting mylar sheet? The thin stuff used for stencils. It usually comes in white or clear, so I've been reluctant to buy this unit or others like it because that's the main use I want it for.

I wonder how the Norton method works to engrave white tiles. In that method you spray the tile with white paint first and that seems to work great. But in this video you had no cutting through white acrylic. Weird!

You have built a great channel, keep it up! You deserve more subs. Greetings from Canada

Thanks for the acrylic test, was considering a 20W diode laser, but I need to be able to cut white and transparent acrylic. Seems like you need to step up to a CO2 laser for it

make a right angle tube that focuses a jet of air with the laser it will help a LOT.. i use a big 60w aquarium air pump with a 3/8" silicone air line... and a 3d printed cone with a 2mm opening it press fits over the focus ring and the air help clears the cut like this a 10w can cut 12mm balsa in 15 passes at 5mm/s

+Electronoobs For laser engraving steel, you have to know the type because the methods are VERY different between low, high carbon and stainless. I put permanent marks on my tools with a "10Watt" laser like the one you used in this video. There are also spray and brush on ceramic compounds that the laser "cures" to create great, crisp marks.

Nice video. Regarding the speed, maybe you mean: 25mm per SECOND? 25mm per minute would be awfully slow, and definitely, we wouldn't even be able to see any movement at all.

Great review.. To bring your cutting speed and passes use air assist to blow away the smoke

Hello is it possible to make a solder Stencil with the laser cutter? will it possible to engrave to a vinyl or something thin sheet material like, for a footprint of a smd device example atmega16u2 qfn footprints?

Hint... for deep cutting, z-axis is your friend (yet missing from most off the shelf engravers)

@frankhovis

4 жыл бұрын

You can now get (or make quite easily) a Z Axis adjustment. Aliexpress has Z Axis Module For Laser Engraver www.aliexpress.com/item/4000002428006.html

@kilrahvp

4 жыл бұрын

That's why I just got the laser and mount it to my 3d printer :)

Just in case you're new with lasers.. Don't cut MDF without proper ventilation or a fume exhaust! The fumes are toxic.

thanks for the video! I've seen a lot of these types of machines advertised on my Facebook feed. I've got a 130W CO2 laser and i typically cut 3mm acrylic and 30mm/s and 3mm MDF at 45mm/s. typically engraving speeds of 400mm/s. I'd have to agree with the glasses although because you are dealing with visible light, if you can see any blue light at all then id say that they are no good but better than nothing. one thing that bothers me with these cheap machines is that there is no air assist. if you had a nozzle that added pressured air to the cut location then the cutting speed would be greatly increased. it's just something all these machines don't have as an option. that and fume extraction :P a good little machine for experimentation and prototyping. I've ordered a "40W" laser which i will just mount to my CO2 laser head ( my controller has dual laser head control as an option) so I'll run some experiments soon :)

Yes, the stated output (15/10/7/5.5W) all turn out to be far different and lower figures (5, 3.5, 2.5, 1.6W) once they finally give you an honest "luminous output" figure. Those cheats! All your tests were wonderful to see. You've convinced me that these blue/violet lasers just won't do. I'll spend the same amount of money ~$335USD and get a K40 (Chi) CO2 laser instead. And maybe pick up a small 2W laser unit (

if you put the laser on a 3d printer head you could adjust the z axis as you do repetitions to keep the laser in focus. in theory. divide the thickness of the material by the number of reps for each pass.

My K40 cuts 4mm MDF like butter , love the thing :)

With a cone shaped focus point, rather than setting the focus point on the top surface, try setting it roughly halfway through the balsa, it won't be as clean of a cut, but it should make it to both sides.

Respect from a fan and also a student from India💥🔥

for ëngraving"on metal, you need to put a coating over the metal 1st, I have even seen someone use yellow mustard,and they were able to make a text engraving on metal very easily.

Please do tests using styrene sheet, Scale modellers use styrene alot it is a huge category of hobbyists. We are always looking for afordable alternatives to straight edge and hobby knife. I suspect it will cut styrene fine as it cut acylic and styrene is a far softer material than acrylic. I would be interetesting to see speeds Vs thickness Vs black styrene Vs White. Interesting video, laser cutting it just another awsome tool to complement 3D printing, Resin casting, and CNC machining. This machine has a lot of potential for proving proof of concept for different scale model kit production methods.

For cutting thicker material, edit software to place stoppages, where your refocus on each pass

thanks for all this test. For metal; issue is not power but wavelength; we need IR laser with high power but it is not available at low price yet

7:42 you can clearly see the problem is not the laser power rating but the focal "depth of field"; on an engraving laser the depth of field is a fractin of a mm because it only needs to burn just the surface of the material (of course burning 0.1mm of wood would talke a lot less power than carving 0.1mm of metal); for a cutting laser what you need is a depth of field slightly greater than the thickness of the material you wish to cut; for foam you can get away with a 5W laser as long as the focal depth of field is (in your case) 5 mm or more, which clearly the laser you showed hasn't.

Hey guy, please, don't stop your video Eric from Reunion Island. Thanks for all.

It's the glue inside the laminated woods that causes the issues. A little compressed air pressure will help but not much.

You are amazing my bro. Earned a subscriber.

It will engrave steel but you need a Laser marking spray (Cermark) which is actually laser bonding type spray, so tiny particles from the paint are laser bonded to the metal and it's permanent.

Try not to cut plastics with chlorine, while being in the same room as it. Examples of such plastics include some leathers, PVC etc

@TheRainHarvester

4 жыл бұрын

It will rust all metal parts very quikly on your machine, I've heard.

@Grizzydan

4 жыл бұрын

Chlorine gas is deadly, just one puff will damage your lungs and may even kill you. This is the stuff they used in world war 1.

Laser cutting and engraving is quite complex. I too found balsa to be strangely resistant to the laser. In contrast,, amazingly , I was able to engrave several different types of rock(even polished rock) and I was also easily able to cut through 5 mm mdf at high speeds.

The eBay glasses are definitely not safe to use. They might not melt completely through but they only block about 99% of the light which isn't nearly good enough, you can still get injured from a reflection or direct exposure. I would recommend glasses with at least OD5 to be safe.

@texascharlie4554

4 жыл бұрын

Take no chances with your precious eyes. Go to LASERSAFETY.COM and read what you really need.

I'm almost sure your modul is defect or not correctly adjusted. I got better results with my 2.5w Laser. But you have to adjust the output power first

If you was to put a z axis on it and drop it down every loop you should be able to cut thicker materials because you would stay in the focal point of the laser.

4:24... I would bet that the output power is much less than 4 Watts. The only way to know the true output power of a Laser beam is with a Laser Power Meter.

A thought: find a way to get an accurate position, then lase one side, flip over and lase the other. This might be a daft idea, but would sprinkling graphite dust in the cut help with the clear acrylic?

@texascharlie4554

4 жыл бұрын

no !!

Cutting mdf needs a 100watt laser. Also you DO need a multistage filter to get rid of the carcgenic fumes given off.

Hi, I am 14 and I don't have that much Money but I love electronics.

That's why I use a laser mounted onto an Ender 3. There is a hot swappable Thingiverse print that works well. This way you can lower the Z height after every pass to keep the laser point focussed on the layer you want. Gets through much quicker. I guess the printer you are using only does Z and Y.

@VinylBlair

4 жыл бұрын

Hi, I'm thinking of trying this with my Ender3, what laser are you using and what power output?, Cheers Sean.

@swiftrick15

4 жыл бұрын

@@VinylBlair Just a cheap chinese Laser. Cost about $80 with fan, module and glasses. On ebay..search for " 445nm 2.5w blue laser engraver"

In general you want to go faster and take more loops when cutting things.

Well I guess I can’t build a portable death ray with this thing. Good video. Thanks.

@SolarWebsite

3 жыл бұрын

Well if you can get really close, and if you can immobilise your victims for a sufficient amount of time, I'm sure you'd be able to kill someone with this. ;-)

You could try air-assist it helps these lower-powered lasers a lot just a very narrow jet at the focal point

@antonw.415

4 жыл бұрын

That's right, my laser-engraver cuts Balsa with a thickness of up to 6mm with air-assist, and it has about 2.5 Watts ^^

Would you try to cut through a piece of 11mm or 12 mm plywood please with the ortur machine and show the results? Also is there a more powerful ortur machine than the one you have used and if so, would you do the experiments on it please. Thank you for a very interesting video.

Great video. The glue layer is the problem for plywood.

How about cutting felt and satin?

refractive index matters as plywood is layers glued together

Totem S 40W / NEJE Master 2S Max / Atomstack A5 Pro / Ortur Laser Master 2 pro I found the four. would like to know which one of the favorites is and which one is best for small knives, normal kitchen knives, silver key rings, zippo, silver engraved bracelet for children. thank you in advance for the help and information I will get. nice day

At my city's fablab we have a beefy plasma laser cutter...its amazing

We have a 100W CO2 cutter, and it cuts and engrave acrylic with no problem. Also we need air pulsing to avoid fire... And this help to keep the material cooler when the laser is not on it. Since a make a CNC by myself, i would like to add it a laser module, and i was wondering about this laser daiode...Y save me 150 bucks, thx !

Probably a good idea to add a fan to blow the smoke away from the lens, the build up of sooth over time can be pretty bad news

Making a foam plane sounds really cool! Looking forwards to that!

@therealfox

3 жыл бұрын

Does this ever happen?

I have a EleksLaser- A3 Pro 2500mW Laser with a Z Axis mod. The Z Axis mod will lower the laser every loop causing the focus to stay on the material needed to be cut. This mod works great!

@justintan7817

4 жыл бұрын

Ortur Laser Master has more safety protection function, also the power ( Electrical Power: 15W, Luminous Power: 4000-4500 mw) of this one is higher, maybe you coud consider to try this one.

@iamkian

4 жыл бұрын

@@justintan7817 I for sure would like to try / test / review it. Will you send me one? :-)

Off topic question: Do you have a future DIY project on your list concerning a reflow oven for SMT board assembly?

I saw this video with fear and sunglasses 😎

That issue that the focal point shifts - maybe you could add a Z-axis that shifts layers per loop. That might solve it

The most powerful single diode out there which can fit in a diode holder that big is nubm 47 with 7watts output power.

@chebhou

4 жыл бұрын

Exactly, there's no 10w nor 15w laser module out there

@SurajGrewal

4 жыл бұрын

Though I do know a manufacturer, who uses prisms to combine output of 2 to 4 diodes and seal it up in a single housing.I think they are called endurance lasers. And there are indeed big industrial diodes like the one Michel reps showed. But none in that size

Where can you buy this laser? I ordered from GearBest and now it appears to be a scam site. I googled GearBest and seems like everyone was ripped off

Would painting the thicker MDF and thicker materials with black paint increase the cutting depth at all, d'you think?

@justintan7817

4 жыл бұрын

Yes, the darker, the better, to advoid the reflection of laser

@texascharlie4554

4 жыл бұрын

No ! this type of laser would take many passes for thicker materials. Define "thicker ".

@MarkMichalowski

4 жыл бұрын

@@texascharlie4554 OK, cheers. The absolute "thickness" isn't important, though - I didn't ask if painting thicker things black would allow them to be cut all the way through; I asked if it would increase the cutting depth, which is a relative thing. If black paint/black surface treatment increase laser absorbtion, then the extra light absorbed (and extra heat generated) would surely increase the depth OR the width of the cut - or both. Or maybe just cause it to burn unpleasantly, perhaps! "Thicker" just means "thicker than the successfully-cut materials".

Focus at the mid point if 4mm thick then focus 2mm into the wood

you have to focuse to the center of the material, take a material half as thick focus on it! than place your wanted thicker material

If anything you would want those glasses to melt all the way through close up, it means that the plastic is absorbing the light and not going through to your eyes! Looks like the green coating was all that was stopping the laser power. Definitely something I would not trust with my eyesight!

There's nothing strange. Charred balsa will become pure carbon. Carbon is highly effective in absorbing the laser wavelength. Use a strong airr assist and a hepa filter for better results.

Definitely need a smoke blower nozzle to blow the smoke out of the way..that smoke is reducing the delivered power to the focal point reducing power of the cutting laser

sir what is difference between blue laser and green laser is it have more power to cut or better efficiency er

Hello.. if I buy this laser Can I engrave and cut acrylic And plexiglass to 2mm??? AND with 20w laser? Thanks a lot is very big important For me know this

@user-sm5qz3oc6l

3 жыл бұрын

Hello, Acrylic And plexiglass can both be cut.But I think you need at least a 40W machine to cut 2MM.If you don't mind, can we change to whatsapp? +8613127135107.I'll send you the power meter to look online

6:56-7:46 Flite Test wants to know your location.

@SolarWebsite

3 жыл бұрын

Flite Test has at least one large CO2 laser cutter, maybe more. For the amount of cutting they do, the speed increase as well as the ability to cut thicker materials is worth the (enormous) price difference. This should be good enough for people like me who only need to cut or engrave occasionally. So I've ordered a similar machine. Should be fun.

Lots of people do not take the focal length into consideration.

The first material you cut is not cardboard it is CHIPBOARD ,cardboard consists of two layers of payer with a corrugation layer(the swiggley part in between.

Would it be possible to cut 0.1 mm copper foil? Or what type of laser cutter would I need?

Please put a video about robotics like pid line follower Or Micromouse

I have cnc 3018 Pro I want to engrave stainless Steel aluminium and plastic which laser head you advise me

What is the laser cutting machine in market I should buy to cut 4 mm thick balsa and 2 mm thick ply and also cut 2 mm fiber class.Kindly advise

What is the right watt laser cutter that can cut paper without leaving a burn mark?

I know this engraver has small working area. I need this machine for only logo burning. Can this machine burn 1cm x 6cm logo on a hardwood size of 25cm x 45cm.

For the clear Acrylic, would it be possible to engrave or cut it if the top surface was first covered with washable marker, easy remove tap or even paint?

Hi everyone, I have an Anycubic mega S, I'd like to buy, install and use the laser engraving. Is it that possible? Is it enough and possible to replace the firmware with the mega pro and is it available to download? Thanks.

Thanks for this video, could you also burn epoxy with this laser ? I want to open ICs with a laser.

I think the 2W unit is better for engraving only, it also has a very small "pixel"

Do you think that with metal there would be a problem with the beam reflecting back into the laser and damaging it?

Can this engrave bone materials? Or do i need co2 40W laser?

to paraphrase, "The tightly focused beam couldn't penetrate the glasses, so for protecting your eyes from a distance hit from an unfocused beam, they are not good enough." ??? Not saying there are not better glasses, but these seemed to work. They stopped the beam, certainly enough to prevent an accidental reflection from hitting your eye.

If you had a z axis you could go depper every loop to focus the laser again :)

Is it possible to cut paper (even photocopy paper) with no burn marks?

Buenos días! Acabo de adquirir un Ortur Laser Master 2 de 20W, estaba realizando algunas pruebas para llegarle al punto que me gustara, con la escala de grises no lo lograba entonces actualicé el firmware pero tengo problemas ahora se ha descontrolado los movimientos X y Y. Cualquier movimiento me indica "límite de movimiento excedido" Que puedo hacer?? Hay alguna forma de restaurarlo a fabrica. Ayuda por favor

Thank you for explain and show details