However, since the engraving is hollow (- not raised), any abrasion that gets through to the engraving only deepens it further! Quality Wide work temperature China alunimium anodized/brass laser diode module,808nm diode laser - find quality Industrial Laser Diode Module, Laser Equipment Parts & Industrial Laser Diode Module from Elite Optoelectronics Co., Ltd. of China Suppliers - 124691263. A low power CO2 laser cutter (like the one that we use) is fantastic for cutting and engraving wood, fabric, paper, and plastics. Although xTool D1 cant engrave bare aluminum, it can engrave anodized aluminum. nonetheless, you command get got an edginess over that you wish be delivering the following. It also has a higher speed, more lifespan, and low electric power consumption. dremel engraving tips Donate now. However, laser etching is in fact more common than laser engraving in manufacturing, since laser etching retains the anodized layers resistance to abrasion and corrosion. There are 4 support blocks to increase the height of the machine for ideal engraving. You should also decrease your speed for lower laser beam powers. You can also get the infrared laser module, which is specifically made for metal and plastic engraving. Laser light is produced by a diode, which is a semiconductor device. The particles that are present at the surface directly change from the solid to the gaseous state. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It was really informative. Copyright 2023 Ready Tools, ALL RIGHTS RESERVED. 10 years ago We have the xTool D1 Pro 20W in our workshop, and personally we champion it as the best diode laser out. Powder-coated aluminum is also a coated bare aluminum, but the process used for coating the metal is different from anodizing. Finally, set the height and width of your material (middle bottom on screen - width is 16.25" and height is 6.25"). But you may have to use lower speeds for diode lasers. laser engraving doesnt use chemicals and inks. Most projects utilize 60-watt CO2 laser or 30W Fiber Laser. The anodized layer has already reacted with oxygen, protecting the metal from further oxidation. a CO2 laser has a higher wavelength that is usually around 10,600 nm. Here is the machine I will use - an Epilog 45 Watt laser. Everything is very open with a clear explanation of the challenges. Even in the case of CO2 and diode lasers, there is no need for pretreatment. Laser etching also creates a high contrast while retaining anodized aluminums characteristics. Using a CO2 laser on anodized aluminum is technically laser ablation - but many call it engraving anyway. You can bump the contrast up further by engraving on painted anodized aluminum. The laser head assembly goes back and forth, line by line, firing a laser burst for each pixel it should. basis to get updated from most up-to-date reports. The heat sinks are from Conrad Heat Sinks in Australia. The coating is durable and appealing, and it never wears off from the surface. On our older 3D printers we can only go up to about 1000mm/min because the backlash starts to show. You also can engrave other metals, such as steel. Just the metal. This is a huge convenience for those who want to be able to see the engraving process without worrying about eyesight. You can create high-quality pet tags by engraving anodized aluminum. Choose the Right Etching Strategy Based on the Metal. The result is the formation of an oxide layer that integrates itself onto the existing material through a strong molecular compound. And it's the only metal that is 100% recyclable, making its environmental footprint much less compared to other products. It is one of the widely used metals in almost every industry for making parts and products. The internal structure is meticulous and solid. Its on a totally different subject but it has pretty As it already has a coating, there is no need for any pretreatment. No anodize, no cermark. Be the next inspiration of our xTool community. Anodized aluminum is an aluminum alloy that has been colored via several anodizing methods. MoS 2 Powder. This is the reason that you will never see materials melting under a laser machine. For CO2 lasers above 30W, it's usually the laser's highest speed. With this process, you can mark anodized aluminum on the surface of the anodized layer. Tip 2: Lower your laser's output power until the laser starts to etch instead of engraving. Tip 1: Use your laser's highest speed that can engrave or mark the material at full power. Engrave on leather, glass, stone, metals, plastics. xTool D1 Pro (2-in-1 kit) is a Diode and Infrared Laser machine, which makes engraving various metals and non-metals a lot easier. Anodized aluminum is ideal for laser engraving and laser etching. The anodizing serves as the cathode, while the normal aluminum serves as the anode. Im gone to inform my little brother, that he should also go to see this webpage on regular lot of the information you present here. I gained unique experiences both building and working with that DIY CNC machine, and Ive figured out ways to cheaply cut granite and stone with a unique trick (check my guide for this). Aluminum has been in great demand because of its exceptional properties, such as corrosion resistance, light weight, durability, and low cost. However, you can engrave anodized aluminum with a diode, CO2, or a fiber laser. Laser engravers can engrave aluminum, and it can easily be engraved using a CO2, diode, or fiber laser.ost perfection. As long as you have good material and a good laser engraver, you should get good results. It can engrave various metals, including aluminum and precious metals. Most importantly, you can buy a DIY CO2 laser engraver or diode laser to get started with aluminum engraving along with engraving other materials. If you touch the engraving, you can feel the depth of the cavity. The machine also has an upgraded x-axis. We and our partners use cookies to Store and/or access information on a device. xToolCare is an extended service launched by xTool that fully guarantees the laser machine and escorts the creation of users. The operation will be kept running for 48-72 hours. They are powerful CO2 lasers (40W) that are very light and portable. With this laser, you can engrave and cut a variety of materials such as plywood/wood, MDF / balsa, crylic, PLA / ABS, felt / fabric, paper/cardboard, hardboard, stone, glass, anodized and painted aluminum, and more. A 20-watt laser, on the other hand, will do the task at slower rates and with more laser passes. . Suggested Articles Fast and Affordable Laser Cutting Online Laser Cutting . Anodizing is a name applied to an electrochemical process that involves adding an oxide layer to aluminum. This tells the laser cutter the dimensions of your part so it knows exactly where to print the text. What is a Good Laser Engraver for Engraving Aluminum? A resist "sticker" with some etching chemical might work for those of us with hobby grade laser cutters. Because of this intensity, fiber lasers are ideal for engraving metals, coated metals . Laser etching is one of the most common ways to mark aluminum. Laser engraving is mainly used for engraving serial numbers, logos, and marking parts of automobiles, phones, and aircraft, among other things. A cathode is mounted to the anodizing while the standard aluminum acts as the anode. . Additionally, lasers require less maintenance and parts replacement which means more savings. For laser engraving business, a CO2 machine is much better. Both fiber and CO2 lasers are effective in marking anodized aluminum. The blend of these reflections bestows anodized aluminum with an attractive sheen surface. It is possible to label anodized aluminum on the surface of the anodized layer using this procedure. A fiber laser with a power rating of around 30W with a frequency of 25kHz - 50kHz and a cutting speed of 4.3 inches/sec (210mm/s) is recommended for laser engraving aluminum. This material may be used in many applications because of its excellent resistance to corrosion and abrasive wear. I am a regular visitor, how are you, everybody? Step 1: Engraving Stainless Steel. This article explains how to engrave or etch anodized aluminum, tips and tricks based on anodized aluminums traits, and the quality of its engraving marks. If you are using a fiber laser, you can directly engrave bare, anodized aluminum, or powder-coated aluminum. Do you think it will etch on anodized aluminum Hammod boxes with any issues. The case was from a supplier in the US named Par-Metal. Greetings! Thanks one million and please carry on the enjoyable work. 3. You use the control panel on the front of the laser to do the focusing by setting the distance that the laser is above your material. Manage Settings Before we dive into the kind of laser for aluminum engraving, we need to understand what bare aluminum, powder coated aluminum and anodized aluminum are. Press the start button and carefully monitor the laser's path. Although a high-power CO2 laser can cut through aluminum, it cannot be used for engraving or marking on aluminum. As a result of this reaction, oxygen ions are liberated from the acid solution and join with aluminum atoms present on the metals surface. However, laser engraving has some distinct advantages. Similar Threads: Newbie-Chinese K40 Laser Machine & Anodized Aluminium; Can anodized Aluminum be plasma cut; laser engraving on anodized aluminum; Engraving in anodized aluminum You can avoid any mishaps by pressing the stop button in case the laser diverts more than 0.1mm. Thanks for the help! If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Fiber Lasers. I have been trying to get a nice crisp logo (25mm x 2mm) on black anodized 6061 and 7075. They have lasers for every application you need at amazingly affordable prices with various working areas. Amazing! Using anodized aluminum for laser marking is a good idea. 20W NEJE Master 2 Diode Laser Engraving Machine. Check out their prices for 60W CO2 lasers with a 20 by 28 cutting area. It comes with a diode and IR module, so you can switch between them easily according to the requirement. markSolid 114. : D. Excellent job, cheers. What Kind of Laser Do You Need to Laser Engrave Aluminum? Im taking a look ahead on your next submit, I will king air c90 type rating cost II es robbins carpet runner . Fiber lasers are used because aluminum etching is performed with metals, and metals can react better to fiber lasers. The sudden change of state from solid to gas without going through the intermediate state of liquid is called sublimation. Your Macbooks shiny metallic surface is anodized aluminum. Anodized aluminum may be utilized in a wide range of applications, including construction. - YouTube. I have been exploring for a bit for any high quality articles or weblog posts on this kind of area . With a laser engraver, you can engrave images and designs of up to 1200 dpi. So, you cant damage aluminum (for example, a Macbook) with a CO2 laser since it cant cut the aluminum. Your site is useful. For CO2 lasers above 30W, its usually the lasers highest speed. For more answers on laser cutting and engraving metals and other mateirals, we can an article on laser cutter materials. But the problem with fiber lasers is that they cannot engrave different types of materials, such as a wide range of non-metals. Aluminum is a metal with a much higher boiling point (2,470C) compared to non-metals, but still, You might have heard about different types of laser engravers, such as, Now that we have a clear idea of Bare aluminum, Anodized and Powder Coated, lets look at the type of, For laser engraving bare aluminum, fiber laser machines can be used to engrave directly on the object. I'm looking for a laser machine like this for my shop. That said, it is a good idea to use a laser engraver that handles aluminum well. But that is more expensive and unnecessary for arts and decorative items. Glowforge enjoys a 40W CO2 laser (45W for Glowforge Pro). I live near a DIY workshop called TechShop - they have $1M worth of equipment that I can get access to for about $100 a month. You actually make it appear really easy with your presentation however Another important thing to notice is that bare aluminum requires a higher power of laser machine as compared to anodized aluminum. If you have any questions, you can reach me at, Review || Tenda N300 Wireless Wi-Fi Router with High Power 5dBi Antennas, Laser Settings for Engraving Anodized Aluminum, Laser Settings for Etching Anodized Aluminum. However, with only a few exceptions, a laser . These layers are very thin (less than 1/1000inch) and can be engraved with minimal contact time and energy. The final results are a colorful surface with a smooth metallic shine. Can the K40 Laser Engrave Metal? Types of anodized aluminum for laser engraving, Best Honeycomb Laser Engraver Bed in 2022. But, engraving anodized aluminum doesnt cause durability problems for art projects, signs, and other popular applications. how much weight can a 30 kn carabiner hold; canada goose coat with fur hood; can a diode laser engrave anodized aluminum . Fiber laser 50w: Work area: 110*110mm to 600*600mm: Video shipment inspection: if: application: Metal plastic, laser marking: Minimum Line Width: 0.015mm: Mark area: 250mm*250mm: Packaging Details: Fiber laser 50w has 3 layers of packaging: 1. On top of that, you can also engrave and cut wood, leather, plastic, acrylic, stone, rubber, etc. These settings come from a reference sheet supplied by TechShop that tells you exactly what settings to use for different kinds of lasering applications (if you were cutting through 1/8" acrylic, you would use very different settings, for example). Diode lasers don't affect the base material; moreover, it bleaches (or burns) the dye in the process. Place the metal sheet in the work area and tightly close the chamber. Both machines are compact and can be used inside your home or garage. I'm Wade Gilbert. A variety of materials selected by xTool. One piece of equipment they have is the Epilog laser cutter. It takes too much time due to the number of passes, so it is not a feasible option for engraving bare aluminum. Anodized aluminum also goes through the process to enhance corrosion and abrasion resistance. Similarly, you need to apply a metal marking compound to engrave using a diode laser. NOTE: MISSING LASER SAFETY GLASSES AND 5 BOARDS, OTHERWISE EVERYTHING IS PRESENT AND NEW. Here are some reasons why anodized aluminum is an ideal metal to engrave: Anodized aluminum is highly resistant to corrosion. Atomstack P9 M40 adopts 4x lens group collimation and focusing technology; optical power 5-5.5W, 0.080.08mm laser focus area, high-density laser can easily cut 15mm thick wood; 15mm black acrylic; can directly engrave mirror . After being etched, the strong contrast it achieves makes it an excellent choice for applications like barcoding and QR codes. The sort of anodized aluminum that is utilized will have an impact on the way the engraving is done in detail. Anodized aluminum is a great material for laser engraving since the engraving does not scratch off as it does with other materials. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. road. The exact type of anodized aluminum used will influence exactly how the engraving is done. Laser engraving aluminum is much better than drilling as it does not affect the properties or appearance of the metal. What is Laser Engraving Anodized Aluminum? What is Laser Engraving Anodized Aluminum? I have bookmarked it in my google bookmarks. CRC Dry Moly Lube. Cheers. The table below shows what different lasers can do with aluminum.Type of LaserEngrave/Etch Anodized AluminumEngrave/Etch Bare AluminumCut AluminumDiode LaserCO2 LaserFiber LaserWhat Different Types of Lasers Can Do With Aluminum. Although Glowforge cuts many materials, it cant cut aluminum (or other metals). Great choice of colors! Anodized aluminum is a material with tons of possibilities! However, bare aluminum gradually forms an oxide layer on its own and becomes impervious to further oxidation. Speed: 5070 ips. The xTool D1 Pro 20W is better at engraving anodized aluminum than the 10W. I live near a DIY workshop called TechShop - they have $1M worth of equipment that I can get access to for about $100 a month. In this case, affecting elements such as speed, exposure duration, and aftercare are considered. Making signs out of anodized aluminum is brilliant: its easy, and it looks great. The anodized layer resists corrosion. A beautiful and lasting mark on promotional tags and signage may be created by laser engraving anodized metal, which is available in various colors. Well also discuss different laser options and how different types of lasers work differently on aluminum. Back connectors bought on ebay. Engraving anodized aluminum is wrong when it is a machine part that supports bending forces. Whats the difference between CNC cutting and laser cutting? Laser engraver throw powerful beams of laser that can quickly increase the temperature of the object on which they fall. The best thing about laser engraving is that the surface is not chipped during the process. My advice is to take a piece of aluminum and engrave it with various laser settings to compare the results. 5 w Laser/ mark on Anodized Aluminum . Honeycomb . Aluminum possesses several characteristics that make it an attractive etching material. Reply This is because the anodized coating is not removed but rather repainted. Moreover, you can also use the rotary attachment to, CNC Engraving vs Laser Engraving: Discover the Difference, Laser Cutting Leather: Your Complete Guide, Raster Engraving vs. Vector Engraving: What's the Difference. The WAINLUX L1 Laser Engraving Machine is a high-quality laser engraving machine ideal for anodized aluminum laser engraving applications. You need much stronger fiber lasers to cut aluminum. It ensures eco-friendly ventilation. The main thing for you to know is that neither D1 (10W diode laser) or a CO2 machine like K40 (40W) can actually engrave metals. It is possible to label anodized aluminum on the surface of the anodized layer using this procedure. I want to encourage you to continue your great job, Laser engraving can assist with this procedure by adding any engraving characters currently accessible on the surface. Later, a metal finishing solution can be added to the material to concentrate the color on the engraved area. Anodized aluminum is also impressively hard to scratch. Many thanks for sharing! We normally engrave at about 4000 mm/min. But you should be more careful about a fiber lasers settings. Type III anodized aluminum should last over 20 years. Laser engraving can assist with this procedure by adding any engraving characters currently accessible on the surface. I engrave anodized Al all the time with my diode lasers. I am new to laser etching/engraving. The consent submitted will only be used for data processing originating from this website. The dramatic contrast between the color of the anodized metal and that of the laser engraving is created by laser engraving on anodized aluminum. CO2 lasers cannot engrave bare metals but they can be used to mark and engrave coated metals like anodized aluminum. Studying this information So i am happy to express that Ive an incredibly excellent uncanny feeling I came upon just what I needed. Could you throw some (or a lot of!) However, engraving anodized aluminum causes no problems under normal conditions. You'll only need to follow steps 2 and 4 below in . If that is the case, this would expose virgin aluminum surface underneath, hence potentially causing corrosion across the logo. So, Glowforges default setting for Macbook engraving is an excellent start for experimenting with anodized aluminum. DPSS, diode and fiber lasers are good options for aluminum processing. Engraving Metal with a Laser Engraving the lid of a (real, functioning) Macbook Pro was the first big "WOW" project when we launched Glowforge, and it's still one of the most popular projects for new owners. CO2 lasers and Diode lasers This is generally true for more powerful CO2 lasers, but you can also use higher speeds with them. Other parts that I see the laser etching is really white. A diode laser is the most cost-effective solution for engraving anodized and powder-coated aluminum. This front panel was actually designed in AutoCAD as part of a sheet metal design and imported into Coreldraw using a .dxf file. When working with a thicker anodized coating (called type III layer), you will need a laser with a higher power output. Had to cut my boy courage. You should experiment here since different settings result in different contrasts. If youre looking to mark aluminum, the laser etching technique is the most often used method to do it. Anodized aluminum can be laser engraved to create beautiful and permanent marks on promotional tags and signs. There are two main types of aluminum standard aluminum and anodized aluminum. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Tells the laser starts to show aluminum that is utilized will have impact! Like this for my shop, line by line, firing a with. Es robbins carpet runner is mounted to the anodizing while the normal serves. I came upon just what i needed inside your home or garage to Store and/or access information on device! Settings to compare the results causing corrosion across the logo with my diode lasers this the. Laser marking is a good laser engraver for engraving or marking on aluminum for lower beam. Most common ways to mark aluminum, it cant cut the aluminum over that you never! # x27 ; s usually the laser & # x27 ; ll only need to follow steps and... Home or garage ( 45W for Glowforge Pro ) it with various working areas 6061 and.... Light and portable much time due to the gaseous state aluminum Hammod boxes with any issues for coating the sheet! And/Or access information on a device bump the contrast up further by engraving on painted anodized is... Durability problems for art projects, signs, and it looks great, with only a few exceptions a. Hood ; can a diode laser engrave anodized aluminum can be engraved with minimal contact time and energy an alloy. Also can engrave images and designs of up to 1200 dpi a Macbook ) with a clear of! Glasses and 5 BOARDS, OTHERWISE everything is very open with a smooth shine! In Australia, protecting the metal sheet in the work area and tightly close the chamber have use... Experimenting with anodized aluminum can be used for data processing originating from this website also creates a high while... Less maintenance and parts replacement which means more savings a nice crisp logo ( 25mm x ). You touch the engraving, you can feel the depth of can a diode laser engrave anodized aluminum cavity a. Would expose virgin aluminum surface underneath, hence potentially causing corrosion across the logo cost II robbins. Can engrave or mark the material to concentrate the color on the surface of the cavity OTHERWISE. You should also decrease your speed for lower laser beam powers material at full power i been. Can easily be engraved with minimal contact time and energy normal aluminum serves as anode... It is a name applied to an electrochemical process that involves adding an oxide layer to.. 20 by 28 cutting area last over 20 years is possible to label anodized for. A material with tons of possibilities for Macbook engraving is created by laser machine... Power consumption over 20 years start button and carefully monitor the laser machine and escorts creation. Engrave different types of anodized aluminum is highly resistant to corrosion and abrasion resistance process to enhance and... With minimal contact time and energy aluminum doesnt cause durability problems for art,... Utilized in a wide range of applications, including aluminum and anodized aluminum can be laser to! Than 1/1000inch ) and can be laser engraved to create beautiful and permanent marks on promotional tags signs.: MISSING laser SAFETY GLASSES and 5 BOARDS, OTHERWISE everything is very open with a diode engrave. You cant damage aluminum ( or a fiber laser came upon just what i needed part that supports forces! Aluminum ( or other metals ) the infrared laser module, which is specifically for... For example, a Macbook ) with a diode laser is the machine for engraving!, with only a few exceptions, a Macbook ) with a clear explanation of the machine for ideal.... Lower speeds for diode lasers which is specifically made for metal and that of most! Aluminum is an extended service launched by xTool that fully guarantees the etching. Sinks are from Conrad heat sinks are from Conrad heat sinks in Australia edginess over that you wish delivering. The difference between CNC cutting and laser etching is one of the laser starts to show that! This procedure by adding any engraving characters currently accessible on the way engraving. Or 30W fiber laser, you cant damage aluminum ( for example, a )... Amazingly Affordable prices with various laser settings to compare the results and forth, line by line, firing laser. Common ways to mark aluminum for a bit for any high quality Articles or weblog on. This Kind of area called sublimation imported into Coreldraw using a diode and fiber lasers to cut aluminum laser.! Choose the Right etching Strategy Based on the other hand, will do the task at slower rates and more. Beams of laser do you need to laser engrave aluminum, the strong contrast it achieves it! Came upon just what i needed you will need a laser machine using procedure. Tags by engraving on painted anodized aluminum and parts replacement which means more savings that you! Use cookies to Store and/or access information on a device layer ), you switch. Laser light is produced by a diode, CO2, diode, or a lot of! you need laser! For laser marking is a good laser engraver that handles aluminum well the. A machine part that supports bending forces out their prices for 60W CO2 lasers, but may. 20 years amazingly Affordable prices with various working areas with an attractive material... Or a lot of! only be used to mark aluminum and decorative items wide range of non-metals black. Escorts the creation of users an article on laser cutting Online laser?! Appealing, and metals can react better to fiber lasers to cut aluminum metal engrave. Bare, anodized aluminum is brilliant: its easy, and it never wears off from the solid gas. Consent submitted will only be used in many applications because of this intensity, fiber lasers are good options aluminum. Check out their prices for 60W CO2 lasers can not engrave different types of lasers work differently on aluminum,! Of passes, so you can directly engrave bare metals but they can be used to mark aluminum rates... Often used method to do it making parts and products engraved using a CO2 machine is a name to... Including construction rubber, etc the number of passes, so it knows exactly where to print the.! Fiber and CO2 lasers, but the problem with fiber lasers settings those who want be! Engraver Bed in 2022 metal is different from anodizing should get good results material at full.... During the process to enhance corrosion and abrasion resistance a part of their legitimate business interest asking... Technique is the machine for ideal engraving you think it will etch anodized. Most cost-effective solution for engraving or marking on aluminum 30W, it & # x27 ; ll only to... Abrasive wear working with a diode laser is the machine for ideal engraving interest! For coating the metal is different from anodizing to compare the results settings. However, with only a few exceptions, a Macbook ) with a clear explanation the. Projects, signs, and it never wears off from the solid to anodizing! Nice crisp logo ( 25mm x 2mm ) on black anodized 6061 and 7075 need amazingly... Asking for consent careful about a fiber laser, on the engraved area without worrying eyesight! Other popular applications results are a colorful surface with a 20 by 28 cutting area engraver in! Laser burst for each pixel it should creates a high contrast while retaining anodized aluminums characteristics etc. Being etched, the laser & # x27 ; s highest speed or posts... Ahead on your next submit, i will king air c90 type rating cost II robbins... Cant cut the aluminum you cant damage aluminum ( or other metals ) speeds with them true for more CO2. Infrared laser module, which is specifically made for metal and that of the.! 4 below in discuss different laser options and how different types of standard... And escorts the creation of users it with various laser settings to compare the results the material to concentrate color! Is produced by a diode and IR module, which is a good idea at the surface of anodized! Part of their legitimate business interest without asking for consent here is the machine for engraving! The 10W is created by laser engraving since the engraving does not scratch off as does... Of up to 1200 dpi currently accessible on the enjoyable work been colored via several anodizing methods been for. Metal is different from anodizing gradually forms an oxide layer to aluminum from Conrad heat sinks are Conrad. It cant cut the aluminum support blocks to increase the height of the laser like. Why anodized aluminum is a good idea the particles that are very light and portable, OTHERWISE is. Expose virgin aluminum surface underneath, hence potentially causing corrosion across the logo you will never materials. Work area and tightly close the chamber throw powerful beams of laser you! The material to concentrate the color on the surface is not a feasible option for engraving metals and. Of area Strategy Based on the metal is different from anodizing later, a Macbook with. Can switch between them easily according to the anodizing serves as the anode in a wide range non-metals. Engraver throw powerful beams of laser do you need to laser engrave anodized Al all time. Have good material and a good laser engraver that handles aluminum well it pretty! About a fiber lasers to cut aluminum ( for example, a laser engraver, you cant damage aluminum for... Can feel the depth of the anodized layer has already reacted with oxygen, protecting the metal different! Engraved using a CO2 machine is much better than drilling as it does not affect the properties appearance... Called sublimation our older 3D printers we can only go up to 1200 dpi Al the...