FCC ID: 2A3AW-RAY5 Engraver

Dear customer, Thank you for choosing Longer products RAY5. Maybe you are familiar with the engraving machine or have bought a similar engraving machine before, we still highly recommend that you read this manual carefully. The installation techniques and precautions in this manual can help you avoid any unnecessary damage or frustraion. More information please refer to:

1. Please contact us via email (support@longer3d.com). 2. Facebook page and Youtube channel as shown below. Facebook : Longer Laser Engraver Official Group Youtube: https://www.youtube.com/c/Longer3D/featured Contents Safety Precautions .......................................................................................................... 2 A. Product information ................................................................................................... 9

(1) Model parameter ......................................................................................................... 9

(2) Packing List ................................................................................................................. 11

(3) Machine assembly ..................................................................................................... 12

(4) Leveling ...................................................................................................................... 13

(5) Installation of the filament ........................................................................................ 14 B Machine operation ................................................................................................ 15

(1)Machine control interface description ....................................................................... 20 C. Installation and use of Cura 4.8 slicing software ......................................................... 26

(1) Software installation .................................................................................................. 26

(2)Add 3D model into Cura 4.8 ........................................................................................ 27

(3)Slicing parameters....................................................................................................... 27

(4)Slice and save Gcode files ........................................................................................... 27

(5)More ........................................................................................................................... 27 D FAQ manual .......................................................................................................... 27 Question1: How to update the firmware? ...................................................................... 27 Question 2:What if the filament does not discharge from the machine? ...................... 28 Question 3: ...................................................................................................................... 29 When the machine returns the filament, it can't be returned. What should I do when stuck in the pneumatic joint? .......................................................................................... 29 Question 4: What should I do if I cannot resume printing after power shutdown? ....... 30 Question 5: ...................................................................................................................... 31 The left side of the platform can be leveled, but the right side cannot be leveled. ...... 31 Question6: ....................................................................................................................... 32 Filament does not stick to the platform .......................................................................... 32 Question7: ....................................................................................................................... 33 Print online encounters no content on the right side. ................................................... 33 Question8: ....................................................................................................................... 34 The touch screen displays the file name garbled. .......................................................... 34 www.longer3d.com info@longer3d.com 1 Safety Precautions 1)The RAY5 engraves and cuts materials by the means of a high-

energy diode laser beam. The hazards associated with a high-energy diode laser beam include the possibility of fires, generation of hazardous and/or irritating toxic fumes, but more importantly damage to eyes and skin. 2) Laser engravers are divided into several internationally valid classes based on their performance and the risk of injury.The RAY5 falls into the Class IV (Class 4 IEC standard focus on the American FDA classification). Laser class Class I Class IIa Class IIa Class II Class Definition Class I laser radiation is not considered hazardous. Class IIa laser radiation is not considered hazardous if viewed for any period of time less than or equal to 1x103 seconds, but is considered a chronic viewing hazard for any period of time greater than 1x103 seconds. Class II laser radiation is considered a chronic viewing hazard. is, Class laser IIIa depending upon irradiance, either an acute in- trabeam viewing hazard or chronic viewing hazard. If optical viewed directly with laser instruments, Class radiation is classified as an acute viewing hazard. radiation IIIa the Class IIIb Direct Class IIIb laser radiation is considered an acute hazard to the www.longer3d.com info@longer3d.com 2 Class IV skin and eyes. Class IV laser radiation is considered an acute hazard to the skin and eyes from both direct and scattered radiation. The high energy laser beam can cause severe eye damage, including blindness and serious skin burns. Improper use of the controls and modification of the safety features may cause serious eye injury and burns. Please wear Personal Protective(Safety Glasses are designed to filter specific ranges of laser wavelength. The RAY5 Safety Glasses provided are specific for LONGER Laser Module;) when using the machine Equipment (PPE). DO NOT look directly into the laser beam;

DO NOT aim the laser beam at reflective surfaces;

DO NOT operate the laser without PPE protection for all persons nearby in the proximity of the RAY5 DO NOT allow unsupervised access to the RAY5 to children;

DO NOT allow access near the RAY5 to pets;

DO NOT modify or disable any safety features of the laser system;

DO NOT touch the high energy laser beam;

www.longer3d.com info@longer3d.com 3 3) We strongly recommend placing the machine in a well-ventilated room, and at the same time, the door of the room has a sealing effect and the windows have curtains, so as to effectively avoid looking directly at the laser beam and some smoke and steam , Particles and other highly toxic substances. At the same time, you can pay attention to the Longer products (cover) in the follow-up. 4) The high-energy diode laser beam can produce extremely high temperatures and significant amounts of heat as the substrate material is burned away while engraving and cutting. Some materials are prone to catch fire during cutting operations creating flame, fumes and smoke. Although the RAY5 has a built in flame sensor, this technology should NOT be considered 100% accurate and should be seen only as a warning system. P.S. During the working process of RAY5, if a flame is found, the machine will stop the laser and make a sound to indicate abnormal conditions. Please pay attention to the working status of the machine. 6) during operation to ensure that any flare ups/ flame are properly contained and extinguished. www.longer3d.com info@longer3d.com 4 It is strongly recommended that a Fire Extinguisher should be located within close proximity to the RAY5. Extinguishers should be halogen or multi-purpose dry chemical. Alternatively or in conjunction with the Fire Extinguisher it is recommended a Fire Extinguisher Ball is positioned beside the RAY5. DO NOT use materials that are highly flammable, explosive or produce toxic by-products;

DO NOT remove material from the cutting bed before it has cooled;

DO NOT leave the RAY5 operating unattended;

ALWAYS clean up clutter, debris and flammable materials in the laser RAY5 bed after use;

ALWAYS keep a properly maintained fire extinguisher nearby;

DO NOT allow the USB cable to come in contact with the laser Beam;

DO NOT allow the 12v power cable to come in contact with the laser Beam;

www.longer3d.com info@longer3d.com 5 7) During the engraving process of the RAY5 laser engraving machine, different materials may produce different pungent odors. Always use RAY5 laser engravers in open and well-ventilated areas. 8) Environmental requirements Temperature requirement: 10C~30C, humidity requirement:

20%~50%, this RAY5 laser engravers can work normally within this range; beyond this range, this laser engravers will unable to achieve the best engraving results. 9) Below a list of some of the most known hazardous materials that the user SHOULD NOT attempt to engrave or cut on. If a material is not in this list, do not consider it to be safe to use. Obtain the Safety Data Sheet (SDS) from the materials manufacturer when handling unknown materials. Material Reason to avoid engraving / cutting it PVC (Poly Vinyl Chloride) PVC will emit Chlorine gas when laser cut or laser engraved. This toxic gas can ruin the optics and motion control system of the laser engraver, In fact, engraving or cutting PVC is a sure way of voiding the warranty of your laser engraver Lexan / Thick Poly- carbonate Lexan not only cuts poorly but it also catches on fire very easily. The window of the laser engraving machine is usually made from polycarbonate because it does a very good job of attracting infrared radiation., which is the frequency of light the engraver uses when cutting and engraving materials. This makes the laser cutter quite ineffective in cutting polycarbonate materials www.longer3d.com info@longer3d.com 6 ABS HDPE Polystyrene Foam Fiberglass ABS melts upon exposure to a laser beam as opposed to vaporizing which would be the ideal reaction needed for laser engraving. Instead of leaving a crisp image, ABS will melt and leave a gooey deposit on the surface. HDPE melts and catches on fire pretty easily upon exposure to a laser beam. Only very thin pieces can be laser cut but for the most part, polystyrene catches on fire and melts when exposed to a laser beam Fiberglass is made from two materials; glass and epoxy resin. The best method of marking glass is etching while epoxy resin can emit toxic fumes upon laser engraving. These two reasons make fiberglass a bad choice for a laser engraving material Polypropylene polypropylene melts and catches on fire easily and then the melted material con- tinues to burn thereby forming pebble-like drips that harden on the surface Coated Carbon Fiber Coated carbon fiber emits noxious fumes. Additionally, carbon fiber can be cut albeit with some fraying but this is not the case when it is coated. 10) The RAY5 has built in technology and algorithms to keep its users and the surrounding environment safe. This said its important to understand the RAY5 is not a toy and should be operated with care and respect. 11) Important information regarding your RAY5 12v power system:

Never Use a different voltage Power Adapter. The RAY5 www.longer3d.com info@longer3d.com 7 requires 12v 5 Amps;

When using an alternative Power Adapter, the Voltage should always be 12v, the minimum Amperage output should be 5 Amps. Higher amperage output Power Adapter can be used without risk of damage to your RAY5;

On inserting the power barrel into your Motherboard it is possible that a small spark is visible. This is NOT hazardous to your machine and is caused by the 12v power inrush. If you prefer to avoid this, connect the power barrel to your motherboard first, then connect your power adapter to the mains electricity plug;

Once the RAY5 detects 12v present you will see the motherboard emit a light red glow on the LED of the Motherboard. This mean the your motherboard is powered. If when plugging your Power Adapter barrel to your Motherboard and the Power adapter to mains power a Blue LED does not turn on, please verify your power adapter is receiving Mains Power. www.longer3d.com info@longer3d.com 8 A. Product information

(1) Model parameter Machine Parameter Item Number Working Area Z-Height Clearance Min Engraving Speed RAY5 400x400 mm (15.75x15.75 In) 65mm 40 mm/min Max Engraving Speed 10000 mm/min Power Adapter Input Voltage (AC) 100-240v 50-60Hz Single Fase Power Adapter Output Voltage (DC) 12V 5A Power Consumption 60W Packaging Size Packaging Weight 61 x 30.5 x 14 cm 4.70Kg Machine Size Assembled 61 x 67 x 20cm (24.01x26.38x0.79inch) Operating Temperature

-20C - 50C Laser Parameter Laser Technology Wavelength Power Input Optical Output (W) Diode Laser 455nm 12V 3A 5W - Item Number is: RAY5 10W - Item Number is: RAY10 Focus Type Fixed Focus - 30mm Focal Range Dot Size at optimal Focus 0.08x0.15mm Laser Class FDA Class IV; Class 4 IEC standard www.longer3d.com 9 info@longer3d.com www.longer3d.com info@longer3d.com 10

(2) Packing List www.longer3d.com info@longer3d.com 11

(3) Machine assembly LASER MACHINE INTRODUCTION 1. Y-axis motor 2.X-axis beam 3.Laser transmitter 4.Leg sheet metal 5. Synchronized optical axis 6.touch screen 7.Left frame profile 8.Rear frame profile 9. X-axis motor 10.Right frame profile 11..X-axis right sheet metal 10.Front frame profile 13.Motherboard 14.X-axis l www.longer3d.com info@longer3d.com 12 1. Preparation: X-axis beam, synchronous shaft, 42 stepper motor\, M3 spring washer, M3x8 screw x4. 1.1Install the motor on the sheet metal on the right side of the beam as shown in the figure, connect the motor shaft with the synchronous shaft, and tighten the coupling screws. 2. Preparation: frame profile, corner groove, hexagon socket head screw M5X20x4, M5 spring cushion x4. 2.1First put the foot groove in the frame profile, use the inner hexagonal cup head to assemble and fix the frame profile. After the frame is installed, tighten the M5 machine screw on the foot groove. During the process, hold down the profile by hand to prevent the frame from warping. www.longer3d.com info@longer3d.com 13 3. Preparation: X-axis beam, and the frame to complete the assembly. 3.1Install the X-axis beam in the V-groove of the left and right profiles along the direction of the arrow. 3.2Pay attention to adjusting the eccentric nut to prevent the roller from www.longer3d.com info@longer3d.com 14 being damaged by the groove. 4. Preparation: Support feet x3, engraving machine control box, M5x20 hexagon socket cup head screw x1, M5x16 hexagon socket cup head screw x7, M5x8 hexagon socket round head screw x1, M5 spring washer x8, nylon isolation column (7*5* 6) x1. 4.1According to the figure, install the supporting foot, the control box of the engraving machine, and the left profile limit screw in the corresponding position. 5. Preparation: timing belt x2, M5 trapezoidal nut x4, M5x6 hexagon socket head screw x4. 5.1As shown in the figure, pass the timing belt through the roller and the timing wheel, and use the square nut to fix the timing belt.The installation method on the other side is the same. www.longer3d.com info@longer3d.com 15 Note: Do not obstruct the movement stroke of the engraving machine with the round head screws 6. Preparation: laser head, M5x8 hexagon socket round head screw x2, M3x6 www.longer3d.com info@longer3d.com 16 hexagon socket round head screw x2, nylon isolation column (5x3x3) x2;

6.1Use M5x8 round head screws to fix the laser head to the X-axis beam laser head sheet metal, and the height of the laser head should not be too high;

7. Connect the cable to the motor and the laser head as shown in the figure. Note: Fix the cable with a cable tie and sheet metal to ensure that the cable has enough length to ensure that the length of the cable is sufficient for the laser head to move to the limit position. www.longer3d.com info@longer3d.com 17 Lightburn Step1. Software installation steps 1. Please download the trial version of Lightburn from the following website:

https://lightburnsoftware.com/pages/trial-version-try-before-you-buy 2. Install the software on your computer and run it. 3. Start the application from your computer (Windows, MAC, Linux). 4. If this is the first time you have started LightBurn, you will be prompted to enter the new device wizard. 5. Select GRBL and press the Next button. 6. Select Serial/USB, and then press Next. www.longer3d.com info@longer3d.com 18 7. Enter your device name and X-axis and Y-axis travel, and then press Enter to confirm. Equipment name: RAY5 X-axis travel is 400mm Y-axis stroke is 400mm 8. Select Front Left as your origin X, Y and activate Auto Home, then press Next. 9. Select RAY5, and then press Set as default. 10. Your RAY5 is ready to be used in LightBurn software. PS. If you think the trial version is good, you can buy it for a fee. Step2. User guide Connect the serial port line to the engraving machine and the computer respectively, and find the serial port number driven by the USB converter in the device manager(COM4) Correspondingly select (COM4) on the serial port, and the engraving machine is connected to the computer software at this time www.longer3d.com info@longer3d.com 19 You can complete the selection of engraving/cutting graphics by importing computer pictures or files/making graphics on the drawings. When importing computer pictures or files, affected by the file format, change the supported format to "all supported items" to find the imported content. Make graphics on the drawing, you can use the graphics editing function on the left to make any pattern on the drawing Step3. After loading the graphics, set the name, speed, maximum power, mode and other parameters in the cutting/layer; (engraving function and cutting function are only different in speed, power parameter selection and focusing, and the cutting speed parameter is slower) www.longer3d.com info@longer3d.com 20 Take the current graph as an example. The green point in the lower left corner of the graph is the origin of the laser (the current position is the original position where the laser starts to work). After placing the sheet under the laser, click "Border" to make the laser go through the outline of the picture to ensure the picture It can completely cover the inside of the board. Click "start", the laser starts to work. The picture below shows the actual engraving effect of mirror stainless steel. LaserGRBL 1.Please download the Host Control Software LaserGrbl and the Drivers at:

https://github.com/arkypita/LaserGRBL/releases 2. After installing laserGRBL,Please plug the cable of power adapter into the Power Adapter Interface, press the Power Switch button, and connect the laser engraver and computer via USB www.longer3d.com info@longer3d.com 21 cable. 3. Advanced Settings Introduction 4. Setting Procedure www.longer3d.com info@longer3d.com 22 5. Please start the engraving. For your information:

1st Please click this icon, to home XY axis. www.longer3d.com info@longer3d.com 23 2nd Please click position you want. these icons, to move the laser unit to be the correct 3rd Please click this icon, to set up the current position as the starting point of the engraving. 4thPlease click this icon to start engraving. www.longer3d.com info@longer3d.com 24 Touch screen 1. Start interface after power-on 2. Test to light up the laser www.longer3d.com info@longer3d.com 25 3. Control interface 4. Read SD card file interface www.longer3d.com info@longer3d.com 26 5. Go to the border and start carving the interface 6. Start carving interface www.longer3d.com info@longer3d.com 27 7. Set speed interface 8.Terminate the engraving interface www.longer3d.com info@longer3d.com 28 9. Engraving complete interface 10. WIFI selection interface www.longer3d.com info@longer3d.com 29 11. Find WIFI interface 12. Enter WIFI password www.longer3d.com info@longer3d.com 30 13. Connect to WIFI interface www.longer3d.com info@longer3d.com 31 14. After connecting to the WIFI, read the IP address, enter the same IP address in the mobile phone or computer, and the offline control interface will pop up. Select the corresponding file on the SD card to engrave, the method is the same as the above two software. www.longer3d.com info@longer3d.com 32 C. Installation and use of Cura 4.8 slicing software

(1) Software installation The 3D printer reads Gcode files and prints. It is necessary to convert 3D files (such as STL files) into Gcode files for the machine to recognize. Software that converts the 3D file into Gcode files is called slicing software. The video in the link below takes the installation of Cura4.8 on Mac OS and Windows as an example to demonstrate the process of software installation, adding models, and slicing the model. Mac OS: https://www.youtube.com/watch?v=XKqRb434USw&t=96s Windows: https://www.youtube.com/watch?v=jdLYBYFEBlQ&t=46s www.longer3d.com info@longer3d.com 26 D FAQ manual Question1: How to update the firmware?

1. Connect the data cable to your computer and printer and open the cura4.8. www.longer3d.com info@longer3d.com 27 Question 2:What if the filament does not discharge from the machine?

1. After the machine nozzle is heated, the consumables are normally fed into the feeding mechanism by hand, and then passed through the Teflon tube to enter the nozzle. 2. When it is found that the gear of the feeding mechanism emits a "beep" sound, it can first check whether the consumables are wound, causing the extrusion mechanism to pull the material. 3 If this is not the reason, raise the machine nozzle and use the 0.4mm needle in the toolbox to insert it from below the copper nozzle and rotate while inserting. 4. Under normal circumstances, this needle can be used to open the copper nozzle, so that the feed is smooth. The reason for this blocking is generally that there are impurities in the consumables, which leads to plugging. www.longer3d.com info@longer3d.com 28 Question 3:

When the machine returns the filament, it can't be returned. What should I do when stuck in the pneumatic joint?

1. Before returning the material, please heat the nozzle first, and then withdraw the consumables as soon as possible. If you can't pump it, you can re-feed the material with the advanced material, and melt the extruded block formed at the end of the consumable in the nozzle. 2. When withdrawing the consumables, before the end of the consumables reaches the pneumatic joint, we will usually pull the Teflon directly from the Teflon and cut the end of the consumables. www.longer3d.com info@longer3d.com 29 3. Because the end of the consumables in the nozzle will be deformed by heat, if the end deformed consumables are directly pulled out, it may be stuck to the pneumatic joint or the limit switch for damage detection. (The limit switch for the broken material detection is single. Towards). Question 4: What should I do if I cannot resume printing after power shutdown?

If the power is suddenly turned off when the part is first printed, the machine will not save the print data. Unless the height of the print exceeds 0.5mm, the power failure will be supported. If the height is less than 0.5mm, it is recommended to reprint directly. www.longer3d.com info@longer3d.com 30 Question 5:

The left side of the platform can be leveled, but the right side cannot be leveled. If this happens, the X-axis beam is generally loose. At this time, the hex socket on the right side of the machine can be adjusted with a wrench to adjust the tightness. www.longer3d.com info@longer3d.com 31 Question6:

Filament does not stick to the platform 1. After the user gets the 3D printer, if the leveling is found to be curled on the first layer of silk, it feels like it is gently falling on the platform. It can be judged that the leveling is not adjusted, and the nozzle is too high from the hot bed. , 2. At this point we need to re-level, the quality of the leveling can largely determine the success rate of the part printing. 3. In addition, in order to ensure good contact between the model and the platform, we can set the larger plane of the model face down when slicing, and can also be set in the slicing software to add Raft to the model, which can make the model stick to the platform. Firm. www.longer3d.com info@longer3d.com 32 Question7:

Print online encounters no content on the right side. First, install the driver files. https://drive.google.com/file/d/1VeoTU4RIrx-

EUwmA7G5sweaPux4-1Xl_/view?usp=sharing Please refer to the video operation in the link below. https://www.youtube.com/watch?v=KwmKZmtTOPw&t=6s NOTE: After completing the operation, restart the software to start Print online www.longer3d.com info@longer3d.com 33 Question8:

The touch screen displays the file name garbled. The file name should only contain English letters, underscore and space. File name contains special characters could not be recognized by the printer. In order to let the printer better recognize the Gcode file in the memory card, you need to back up all the files in the memory card to the computer, and keep the memory card only for the Gcode file, please save all the Gcode files in root directory of the memory card. Question9: Warranty Periods For LONGER official stores and LONGER designated distributors, RAY5 has an One-year International Limited Manufacturer warranty from the date of purchase of RAY5. Please note the following warranty terms. One-year International Limited Manufacturer Warranty means that LONGER will provide the following free warranty services:

Diagnostics and Evaluation;

www.longer3d.com info@longer3d.com 34 Technical Support;

Replacement Parts under Warranty terms;

How to handle a warranty case Any warranty case must be submitted to our official support channels

(Email: support@LONGER3d.com). In case the product was bought from a reseller, contact us first so that we can help you diagnose the problem, then turn to your reseller for spare parts if needed. Documentation needed for a warranty case:

1. Machine purchase order number and channel, nameplate number on the machine. 2. A brief description of the problem along with the clear evidence of its presence

(e.g., photos or videos) 3. On the initial contact for Customer Support further tests and diagnostic steps might be required to identify the root cause of the problem. Some parts of the RAY5 inevitably get used up over time. For these www.longer3d.com info@longer3d.com 35 parts, specific conditions apply, unless failure has occurred due to a defect in materials or workmanship. Part motherboard Motor, Warranty Limitation One-year International Limited Manufacturer Warranty One-year International Limited Manufacturer Warranty LONGER Laser Module One-year International Limited Manufacturer Warranty touch screen, Power Adapter One-year International Limited Manufacturer Warranty One-year International Limited Manufacturer Warranty Chrome-plated rod Warranty does not apply on normal wear and tear 2020 profile Coupling Eccentric nut Bearing Warranty does not apply on normal wear and tear Warranty does not apply on normal wear and tear Warranty does not apply on normal wear and tear Warranty does not apply on normal wear and tear L-shaped right-angle foot slot Warranty does not apply on normal wear and tear Goggles brush Board\ Acrylic board\ Stainless steel plate Warranty does not apply on normal wear and tear Warranty does not apply on normal wear and tear Warranty does not apply on normal wear and tear Linear Bearing Wheels Warranty does not apply on normal wear and tear GT2 6mm - 2mm Pitch Belts Warranty does not apply on normal wear and tear Powder-coated Aluminium Extrusion Warranty does not apply on normal wear and tear Cables & Drag Chain Warranty does not apply on normal wear and tear Cosmetic Appearance & Logos Warranty does not apply on normal wear and tear P.S. 1. The warranty does not cover normal, expected wear and tear caused by using the RAY5 for its intended purpose. 2. In case we have provided a free replacement part, the warranty does not reset. The original warranty period still applies. This warranty is voided by:

www.longer3d.com info@longer3d.com 36 Any damages caused by improper assembly of the product. Any damage caused by improper use, maintenance or operation of the printer. Any damage caused by long-term lack of maintenance. Using the RAY5 in improper conditions (temperature, dustiness...). Upgrades, modifications or add-ons that are not officially supported. P.S. Rest assured that our Technical Support Team is always available to help you out under any circumstances, even if the issue is not covered under warranty. Feel free to contact us(email: support@LONGER3d.com) with any questions or inquiries with. www.longer3d.com info@longer3d.com 37 Thank you for purchasing Longer products! Under normal usage and service, the products and its parts have a warranty period up to one year. If you encounter any problems, please send an email to "support@ longer3d.com" to report any issue with Longer products. Our professional after-sale service would respond within 24 hours and help you to solve the issues. FCC STATEMENT : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. www.longer3d.com info@longer3d.com 38

Label Location On EUT Label Product Name: Engraver Model No.: RAY5 FCC ID: 2A3AW-RAY5 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and This device must accept any interference received, including interference that may cause undesired operation.

Shenzhen Longer 3D Technology Co., Ltd. Declaration concerning Antenna Specification It is hereby declared that the product Model No.: RAY5, RAY1, RAY1 Pro, RAY1 Plus, RAY3, RAY3 Pro, RAY3 Plus, RAY5 Pro, RAY5 Plus, RAY10, RAY10 Pro, RAY10 Plus, RAY15, RAY15 Pro, RAY15 Plus FCC ID : 2A3AW-RAY5 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below:

Model No. of antenna: N/A Type of antenna:

Gain of the antenna:

Frequency range:

FPC antenna 5 dBi 2412-2462 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name:

Address:

City:

ZIP / Postal code:

Country:

Place:

Shenzhen Longer 3D Technology Co., Ltd. 1F-2F, Building 49, Dayun Software Town, 8288 Longgang Avenue, Longgang District, Shenzhen, China Shenzhen

China Date: 10/26/2021 Signature:

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