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Thank You for Your Purchase!
Thank you for purchasing the Opt Lasers' PLH3D-XT-50 laser head. The XT-50 laser
engraver and cutter from the PLH3D Series is a versatile and powerful tool designed for
a wide range of applications. This laser head is capable of laser engraving and cutting
various materials, including plastics, leather, wood, cardboard, textiles, and fibreglass
as well as laser engraving anodized aluminum, stainless steel, tool steel and Titanium.
Similar to its predecessor, the XF+, the XT-50 can be easily integrated and controlled by
CNC machines and 3D printers, making it a flexible solution for many manufacturing
processes. Its universal mountability allows it to replace CO2 lasers in numerous
applications, providing a compact and energy-efficient alternative as XT-50 is 4 times
more energy efficient than a CO2 laser tube (not counting the CO2 laser chiller which
lowers a CO2 laser's energy efficiency even further).
One of the notable features of the XT-50 is its compact and lightweight design,
eliminating the need for additional cooling systems. The laser head's body serves a dual
purpose by directing air from the fan to remove smoke and functioning as an effective
heat sink. With its housing crafted from machined Aluminum, XT-50 remains lightweight
while effectively dissipating heat from the laser diode, ensuring a longer operational
lifespan even at high power settings.
To safeguard the semiconductor laser and maintain its longevity, the XT-50 incorporates
a built-in overheating protection device. When the laser diode's housing temperature
surpasses 45°C (113°F), the laser head automatically shuts off, resuming operation
once it reaches 40°C (103°F). Furthermore, its professional high-speed laser driver is
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Related Manuals for Opt Lasers PLH3D-XT-50
Summary of Contents for Opt Lasers PLH3D-XT-50
- Page 1 Thank You for Your Purchase! Thank you for purchasing the Opt Lasers’ PLH3D-XT-50 laser head. The XT-50 laser engraver and cutter from the PLH3D Series is a versatile and powerful tool designed for a wide range of applications. This laser head is capable of laser engraving and cutting various materials, including plastics, leather, wood, cardboard, textiles, and fibreglass as well as laser engraving anodized aluminum, stainless steel, tool steel and Titanium.
- Page 2 integrated directly into the laser head, enabling higher maximum modulation frequencies. High power modulation (up to 100 kHz) ensures the high speed of the XT-50 engraving laser, even for the most sophisticated patterns. Equipped with a special advanced optical system, the XT-50 provides 4k Ultra-HD precision engraving and cutting capabilities.
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Page 3: Technical Specifications
Technical Specifications Performance Parameter PLH3D-XT-50 Laser Diode’s Optical Power Optical Power Density 2500 [kW/cm²] Resolution 50 (>500) [µm (DPI)] Wavelength 445 ± 10 [nm] Maximum Power Consumption Control Signal Input Analog - 0-5 / 0-10 PWM - 0-5 / 0-10 / 0-24... -
Page 4: Laser Safety
Laser Safety Only a person with specialized training and appropriate laser safety knowledge can use and maintain the laser head. The laser head operator must be aware of laser radiation hazard. While the laser head is operating protection Laser Glasses designed for 190 – 540 nm (OD 7+) should be used. -
Page 5: Electrical Inputs
Electrical Inputs Pin Descriptions: 1. Mod Input #1 ANG Modulation input #1 accepts analog or Pulse-Width Modulation (PWM) signals. The operating range of modulation input #1 is 0 - 5 V. If it is connected to a signal with a slightly higher voltage, e.g. - Page 6 2. Mod Input #2 PWM Modulation Input #2 accepts PWM signals whose voltage in the high state (interpreted as laser on) should be a minimum of 3 V. Examples of compatible control signal ranges are: 0 - 5 V, 0 - 10 V and 0 - 24 V. In the case of PWM control, we recommend using a frequency of base frequency of 5,000 - 10,000 Hz.
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Page 7: Working Distance
Working Distance The working distance (WD) of the PLH3D-XT-50 laser head should be set to 60 mm (2.36 inch) between the bottom face of the laser head and the material processed as shown below. Working Distance Calibration The working distance of the XT-50 laser head should be calibrated with high precision once the initial working distance of 60 mm is set. - Page 8 For the XT-50 we highly recommend that two calibration runs are carried out. The first run should be done ± 5 mm around 60 mm WD (with 1 mm iterations). The working height at which the engraved lines are the thinnest is the distance to which you should move your laser head (ie.
- Page 9 High-Pressure Air Assist Nozzle Accessory Usage The High-Pressure Air Assist Nozzle (HP Nozzle) can be installed on the XT-50 laser head by simply sliding the nozzle cap on the lens sleeve and tightening the nozzle’s position with the 4 provided screws. For XT-50, the nozzle should not be placed higher than the oblong line on the XT-50’s lens sleeve.
- Page 10 Case 1 - Nozzle Too High If the HP Nozzle is installed too high up, or it is not leveled properly, part of the laser beam will be clipped. This looks similar to the pictures below, depending on the severity of the issue: This can result in a ghost image of the laser dot, which: will lower the laser power that arrives where you want to use it;...
- Page 11 Even if you don’t have a ghost beam image, an improperly installed High-Pressure Air Assist Nozzle may result in beam clipping. The picture below shows what the XT-50’s beam profile should look like (at a distance far away from its working distance) when it is installed correctly.
- Page 12 On the other hand, the two following pictures below show how the beam looks like if it is clipped (incorrect). Case 2 - Nozzle Too Low If the HP Nozzle is installed too low down, the beam will focus inside the nozzle. This means that you will not get the highest optical power density: It will lower the speed at which your laser head can laser engrave and laser cut You will not be able to reach a small enough beam spot required to do Ultra HD...
- Page 13 Recommended Usage Depending on the Application Case 1 - Ultra HD Laser Engraving and Laser Cutting Thin Materials For Ultra HD laser engraving as well as laser cutting thin materials, we recommend placing the bottom tip of the HP nozzle at 58 mm from the bottom face of the laser head.
- Page 14 Case 2 - Thick Line Engraving XT-50 laser heads’ adjustable square beam spot allows you to laser engrave with different laser dot thicknesses. This introduces the possibility of rapidly engraving with a single thick curve or line by using an offset. In this case, the High-Pressure Air Assist Nozzle should also be placed in the same fashion as in Case 1, ie.
- Page 15 Case 3 - Thick Materials Cutting For laser cutting thick materials, the High-Pressure Air Assist Nozzle should be closer to the laser head. Effectively, the bottom tip of the nozzle should be 55 mm from the bottom face of the laser head as shown above. Then you cut the material layer by layer.
- Page 16 pass (HP nozzle 1 mm above the material) so that the nozzle does not collide with the material. This is depicted below. Suitable Compressor Any compressor will be suitable for supplying air to your High-Pressure Air Assist Nozzle unit. However, because the appropriate flow rate must be determined experimentally (for each different type of material to be processed), the desired results might not be achieved with small compressor units.
- Page 17 nozzle. The work is also more comfortable with better compressor units (so that the compressor will not turn on too often in order to refill the tank). We recommend a compressor with a real airflow of 10-12 l/min and a tank capacity of at least 50 liters. However, nothing prevents you from trying a smaller compressor.
- Page 18 The cleaning should be done in a delicate manner, enough to clean oil drops and dirt, but not too strong to avoid damaging the lens coating. You should not use lens wipes, that are advertised for cleaning reading glasses and microscopes.