YUMI L-A4 Laser for Engraving and Cutting Instruction Manual

YUMI L-A4 Laser for Engraving and Cutting

Product Information

Specifications:

• Model: YUMI LASER
• Version: V0.4 / V1.5
• Laser Class: 4
• Compliance: EN 60825-1 : 2014
• Intended Use: Engraving and Cutting

Product Usage Instructions

Safety Instructions:
The use of this device is exclusively reserved for adults. When using the device:

• Ensure the beams remain above the object to be engraved.
• Avoid direct or indirect exposure of the beams to eyes or skin.
• Do not use the device for any purpose other than engraving or cutting.
• Comply with regulations NF EN 60825-1:2014.
• Always exercise caution and be aware of potential dangers.

Installation:

1. Prepare the workspace by clearing enough space.
2. Position the motor block on the Y-axis as close to the edge of the X-axis as possible.
3. Secure the motor block with 4 screws on the motor.
4. Insert the laser head cable and pass it through to the side with a small indicator.
5. Connect the power cable of the laser head and ensure proper cable routing.

Assembly :

1. Follow the inventory list provided to identify all components.
2. Slide the Y-axis profile to remove it from the box.
3. Ensure correct positioning of the synchronization wheel on the Y-axis.
4. Insert nuts into the Y-axis profiles and secure them properly.
5. Place both ends of the belt into the notches on the X-axis platform.

FAQ (Frequently Asked Questions):

• Q: Can this device be used by children?
  A: No, the device is exclusively reserved for adults due to safety reasons.

• Q: What is the laser class of this product?
  A: The laser class is Class 4, as per EN 60825-1 : 2014 standards.

• Q: What should I do in case of warranty issues?
  A: Contact customer support for assistance with warranty claims and follow their instructions.

Safety Instructions

• Before using your device, it is imperative to read all the instructions in this manual.
• This device produces intense and powerful light. Eye hazard. Do not look directly into the beam. Visible and invisible LASER radiation. Avoid direct or indirect exposure to the eyes or skin!

Foreword

• Please note that this safety notice concerns a Class 4 laser device: all safety precautions must be strictly followed. Failure to adhere to these safety instructions may result in serious injury or damage. Always use appropriate safety equipment and follow best practices for laser operation.
• This product is intended for use by professionals or competent technicians. Therefore, the operation of your device depends on a control key, which must be removed when the device is not in use and held by a qualified individual.
• Keep this manual for future reference. If you sell this device, be sure to also pass on this user manual to the new owner.

Installation

• The device must be installed by an adult and should be placed out of reach of children.
• Fully unpack the device and all its accessories. Check for any damage and ensure the device is in perfect condition.
• It is forbidden to use or turn on the laser when not fixed on its intended support or when held by hand to aim at a person, either directly or indirectly.
• It is important to use the provided power cable (with ground).
• The entire device should be properly secured to prevent any falls due to vibrations produced by the machine during operation.
• Avoid impacts on the machine structure; in case of impact, immediately cease operation.
• Do not touch the laser head after operation, as it dissipates heat and  becomes very hot.
• Always unplug the device before any technical intervention or maintenance.
• Use the laser in a fireproof area, in a well-ventilated room designated for this purpose.
• To reduce and avoid the risk of electric shock or fire, do not use this device in a humid environment or in the rain.
• Maximum ambient temperature for optimal device operation: 30°C. Do not use the device if the ambient temperature exceeds this value.
• Do not attempt to repair it yourself. Contact your dealer or a specialized and authorized repairer. There are no user-replaceable parts in the laser head.
• The workstation should be free of obstacles. Causes of accidental reflection and diffusion of laser beams should be eliminated (improperly placed windows, furniture, or objects with polished surfaces).

Invisible Infrared Warning
Do not use the laser without eye protection (certified protective glasses suitable for the laser head).

The laser can:

• Instantly cause blindness if it intercepts an eye faster than the eye can protect itself by closing.
• Cause severe burns instantly if it intercepts the skin.
• Cause fires if it intercepts flammable materials, including clothing. Reflections
• If the laser is not properly aligned or if a reflective material is accidentally left in its path, a reflected beam may have enough power to be hazardous to users. Always ensure before using the machine that the beam is properly aligned and that no reflective surface is in the path of the laser. (e.g., forgotten tools).

Combustion Point
The cover at the emission area is opaque to infrared light to protect you from the cutting laser beam, but it is transparent to visible light. When certain materials (e.g., wood and cardboard) are cut or engraved, a combustion point is formed at the point of contact between the beam and the material, producing intense visible light. Just as staring directly at the sun is dangerous for the eyes, prolonged exposure to this intense light point is hazardous. Users and any observers of the machine’s operation must be informed of this danger and should not look at the intense light point for an extended period.

Smoke
When a material is cut or engraved by the laser, part of it is sublimated or burned, turning into gas, particles, and smoke. In this form, it can be harmful and must be vented outside. It is imperative to have a well-ventilated room throughout the engraving/cutting process. When a cut or engraving is completed, it is also important to let the ventilation run long enough for the smoke to be completely evacuated.

Materials

• The composition of any material must be known, and this composition must be safe before the material can be used in the machine. If the composition of a material is unknown, it is possible that the material is hazardous and, as such, is not safe to use. Note that some materials may seem safe (e.g., MDF board) but may be covered by other materials (e.g., protective film) that could be hazardous (e.g., if they contain PVC, which is common in protective films).
• The following materials MUST NEVER be used in the machine under any circumstances:
  • PVC, as its combustion produces hydrochloric acid, hydrogen chloride, and other deadly gases.
  • Any other halogen-containing material (containing chlorine, fluorine, or bromine) for the same reasons as PVC. Examples: PTFE, PVDF, Lexan, polycarbonate, vinyl.

Fire

• The materials being worked on by the machine are at any time susceptible to catching fire. The machine should never be left unattended. Every user of the machine must be informed of this rule and all other safety rules. The machine should also be kept clean at all times; accumulations of residues and waste are likely to catch fire. A fire extinguisher should always be placed near the machine and should be accessible at all times. Recommended extinguishers include:
  • Halotron extinguisher
  • Dry chemical extinguisher
  • CO2 extinguisher
  • Water extinguishers are not suitable due to the high voltages present in the machine. It is also important not to store flammable materials
    (including consumable stocks for machining) near the machine, such as alcohol, acetone, or explosives. Always ensure that the assist air is on; the risk of fire is even higher if it is not.

Smoke Detector
It is imperative to install a smoke detector near (above) the machine.

Surveillance
Leaving the machine running unattended is very dangerous and strictly prohibited.

Emergency Stop
The machine is equipped with an emergency stop button on the housing. In case of any problem or abnormal behavior, the user must press the emergency stop button before taking any other action.

Warning

• The use of this device is exclusively reserved for adults.
• When using this device, it must be installed so that the beams remain above the object to be engraved and ensure that the beams never touch a person directly or indirectly.
• It is forbidden to use this device for any purpose other than its intended use.
• The manufacturer and the distributor are not responsible for damages caused by the YUMI LASER. The user is responsible for the use and compliance with regulation NF EN 60825-1:2014.
• Following these rules is only the beginning; always use common sense and be vigilant and aware of the potential dangers posed by the machine.

Warranty Periods

• The L-A4 comes with a manufacturer’s one-year international limited warranty. The warranty is valid from the original purchase date by the original buyer. A manufacturing defect is defined as any defect in the parts or labor of the L-A4, which is present at the time of receipt or during the one-year period.
• Please note the following warranty information. The one-year international limited warranty means that Multaka will provide the following free warranty services:
• Diagnostic and evaluation;
• Technical support;
  • Spare parts under warranty conditions;
  • Shipping of spare parts under warranty conditions.
  • The following services are not included but may be provided in addition to the one-year international limited warranty:
  • Expedited shipping service for warranty spare parts;
  • Remote terminal access and diagnostics.
• How to Process a Warranty Case:
  • Any warranty case must be submitted through our official support channels (ticketing system). If the product was purchased from a reseller, please contact us first so we can assist you in diagnosing the problem, then refer to your reseller for spare parts if necessary.
• Documentation Required for a Warranty Case:
  • A brief description of the problem accompanied by explicit items (photos and/or videos).
  • During the initial contact with customer support, additional tests and diagnostic steps may be necessary to identify the root cause of the problem.

Limited Warranty on Consumables

• Certain parts of the L-A4 are inevitably «worn» over time. For these parts, specific conditions apply unless the failure is due to a defect in materials or labor.
• The warranty does not cover normal and foreseeable wear caused by the intended use of the L-A4.
• If we have provided a free spare part, the original warranty period still applies.
• This warranty is voided by:
• Any damage caused by incorrect assembly of the product.
• Any damage caused by incorrect use, maintenance, or operation of the device.
• Any damage caused by long-term lack of maintenance.
• Use of the L-A4 in inappropriate conditions (temperature, dust, etc.). Upgrades, modifications, or additions not officially supported.
• Our technical support team is always available to assist you

Instructions

INVENTORY
Content subject to change

1. X Axis
2. Y Axis
3. Motor Cable Y Axis (Y, B)
4. Engraving Surface
5. Calibration Card
6. Key Set
7. Small Round Head Screw
8. Belt Tensioner Wheel
9. Laser Head 2.5W
10. Protective Glasses
11. Foot
12. Foot
13. Power Cable
14. USB Cable
15. Power Supply
16. Belt
17. Air Pump Nozzle
18. Air Pump
19. Air Pump Tube
20. Y Axis Motor (B)
21. Laser Head Cable (L)
22. Enclosure
23. X Axis Accordion Cable (A, X)
24. Safety Key
25. Laser/ Air Pump Nozzle Tip
26. Nut
27. Small Screw
28. Washer
29. Retaining Clip
30. Large Round Head Screw

Assembly instructions

1. Clear space to remove all items present in this box.

2. Slide the profile of the Y axis through the guiding wheels of the X axis.
   Ensure that the synchronization wheel of the Y axis is positioned on the appropriate side, i.e., on the same side as the motor of the X axis.

3. Prepare the 4 screws by inserting them through the motor bracket and add one nut to each screw. Insert the nuts into the profiles of the Y axis.
   Do not tighten the screws completely; the motor should be loosely attached, and it should be easy to move along the axis.

4. Pass the belt through the synchronization wheel of the Y axis and the motor installed in the previous step.
   Then, place the two ends of
   the belt into the notches on the platform of the X axis.

5. Position the motor block as close as possible to the edge of the Y axis.
   Be careful not to exert too much force.
   Then, tighten all 4 screws on the motor.

6. Take the power cable of the laser head and take the end labeled ‘L’, then thread it through the Y axis on the side where there is the small bee. Once the connector reaches the other side, allow for approximately 9cm of slack, as shown in the image below.

7. Take the foot and attach it using the screws to the edge of the Y axis.
   Be careful; this foot goes on the side where there is the small bee. Also, make sure to pass the cable through the provided notch to avoid damaging it.

8. Take the foot and attach it using the screws on the other side of the Y axis.
   Be careful; this foot goes on the side where the motor is located. Also, make sure to pass the cable through the provided notch to avoid damaging it.

9. Use the 4 screws and washers to secure the enclosure to the foot.

10. Unscrew the 2 screws above the laser head.
    Then, connect the cable to the head and put back the safety plate and the 2 screws.

11. Loosen the screw at the back of the platform on the X axis.
    Then, slide the laser head onto it. Leave a few centimeters between the head and the table.
    Once positioned, tighten the previously loosened screw.

12. Insert the tube into the nozzle. Insert the part of the tube into the air pump.

13. Screw the nozzle into the laser head.
    Then, insert the remaining end of the tube into the same nozzle.

14. Use the clipsto attach the pump tube as well as the laser cable.
    Add the belt tensioner wheel to the end of the X-axis.
    It should be neither too tight nor too loose.

Wirings

For the wiring part, associate the letters with each other. Below is an aid with the numbering of the elements.

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