A70 Pre-sales FAQ – Materials, Rotary & Air Assist
¶ Overview
¶ How Does It Compare?
What Are the Advantages of the A70 Series Compared to Other Devices of the Same Power Level?
Answer: The A70 series is the world's first 70W blue diode laser engraving machine, offering a 30–50% increase in cutting performance compared to similar-power devices. It supports high-speed engraving at up to 24,000 mm/min and achieves precise focusing in just 8 seconds, allowing users to begin work quickly.
Product Highlights:
- Powerful Cutting Capability: cuts materials such as 26 mm dark acrylic, 12 mm MDF, 25 mm pine wood, 0.05 mm stainless steel sheet.
- Extra-Large Working Area: A70 PRO — standard 500 × 400 mm working area, frame supports up to 600 × 645 mm objects; A70 MAX — standard 850 × 800 mm ultra-large working area.
- New Motion Architecture: features low-center-of-gravity dual-axis linear guides on all three axes to ensure stable, quiet, high-speed operation, ideal for heavy-duty engraving and cutting tasks.
- Offline Operation: comes with a second-generation intelligent motherboard and control screen, allowing users to operate without a computer or mobile device.
- High-Volume Air Assist: up to 60 L/min airflow delivers clean, sharp cutting edges, reduces yellowing, and helps extend the laser's lifespan.
- Versatile Application Scenarios: compatible with materials such as copper, ceramics, and black acrylic, and supports woodworking, artistic engraving, DIY crafts, sign making, metal marking, and fashion design.
- High-Speed Operation: up to 400 mm/s motion speed for efficient production.
- Dual-Mode Focusing: supports both manual and automatic focusing, completed within 8 seconds.
- Flame Detection System: automatically detects sparks or flames in the working area, triggering an alarm and halting operation immediately for safety.
- Intelligent Cooling System: activates dual-layer air guide hood and air assist during cutting to improve fume extraction and cooling, enhancing overall cut quality.
- Power-off Resume Engraving: in the event of unexpected power failure, the machine can resume engraving seamlessly once power is restored.
- Extended Accessory Compatibility: compatible with camera modules, rotary rollers, extension kits, conveyor feeders, and protective enclosures for A70 PRO.
¶ Air Assist Specs?
Does the A70 Series Engraving Machine Come with Air Assist? What Is the Flow Rate and Noise of the Air Assist?
Answer: Yes, the engraving machine comes with a double pump air assist. The airflow is about 60L/min and the noise is <60dB.
¶ Compatibility
¶ Other Laser Modules?
Is the A70 Series Engraving Machine Compatible with Other AtomStack Laser Modules or Third-Party Lasers?
Answer: The A70 series features a specialized design and is currently not compatible with laser modules from other AtomStack models or third-party brands.
Note:
- The A70 series uses a 36V power supply and a dual-connector port, which differs from standard configurations.
Figure 5
¶ Use on Other Brands?
Can the A70 Series Laser Module Be Used on Other Brands of Engraving Machines?
Answer: The A70 series features a specialized design and is not compatible with engraving machines from other brands.
Note:
- It operates on a 36V power supply and uses a dual-connector port, which differs from standard configurations (see Figure 5 above).
¶ Router Connection?
Can the A70 Series Engraving Machine Connect to a Router?
Answer: The A70 series supports Wi-Fi connection or direct hotspot connection to the mobile app. However, when attempting to use LightBurn software for remote control via IP address, some compatibility issues may arise. While the machine can connect to a mobile phone via Wi-Fi or hotspot, LightBurn may not operate stably over the IP connection, which can interrupt engraving tasks.
Note:
- To connect your phone, search for "AtomStack" in your app store or download it from the AtomStack official website. The default hotspot connection password is: 12345678
¶ Materials
¶ Engrave or Cut Metal?
Can the A70 Series Engraving Machine Engrave or Cut Metal?
Answer: The A70 series can engrave on anodized aluminum, brass, stainless steel, and certain iron-based metals. It can also cut thin stainless steel sheets up to 0.05 mm.
Note:
- Blue diode lasers (used in the A70 series) are optimized for non-metallic materials. For metal engraving, infrared laser R30 V2, MR20 fiber laser, or lasers with 1064 nm wavelength are more effective. The MR20, for example, can engrave precious metals like silver and gold (ventilation is required to avoid inhaling metal dust). Currently, the A70 series does not support installation of R30 V2 or MR20 infrared laser modules.
¶ Cups & Curved Items?
Can the A70 Series Engraving Machine Engrave Curved Objects, Such as Cups or Thermos Bottles?
Answer: Yes, the A70 series can engrave on regularly-shaped curved surfaces (such as cups and thermos bottles) using a rotary attachment.
Note:
- Recommended rotary attachments include R1-B (V2), R2-B (V2), R6, R8, and R8 PRO. Refer to the rotary setup video for proper connection and usage.
¶ Leather Settings?
Can the A70 Series Engraving Machine Engrave and Cut Leather? What Parameters Are Recommended?
Answer: Yes, it can. For recommended settings, please refer to the 70W engraving parameter chart, available via the USB flash drive included with the product, the AtomStack official website, or by contacting customer support.
Note:
- When cutting leather, use higher speeds for high-power settings, and slower speeds for low-power settings. Improper settings may cause burnt edges or even ignition. The recommended approach is to use multiple fast passes instead of a single slow one.
¶ Accessories
¶ Rotary Support?
Can the A70 Series Engraving Machine Be Used with Rotary Attachments?
Answer: Yes, it supports rotary accessories such as R1-B (V2), R2-B (V2), R6, R8, and R8 PRO. Simply connect the rotary attachment to the Y-axis motor port of the engraving machine to use it.
Note:
- All AtomStack machines use white-head sequential wiring cables for rotary device connection. Please note that R1 V2, R2 V2, and other V2-series rotary tools produced before July 12, 2024, may not include the white-head sequential cable. If needed, please contact customer support for a solution.
¶ Enclosure Options?
Does the A70 Series Engraving Machine Have a Suitable Protective Enclosure?
Answer: A70 MAX has no suitable protective enclosure.
¶ Honeycomb Panel?
Does the A70 Series Engraving Machine Have a Suitable Honeycomb Panel?
Answer: Yes, two F8 honeycomb panels can be joined together to form a large panel suitable for A70 MAX, and A70 PRO can use F4 honeycomb panels.
Note:
- Two F8 panels can be joined together and are suitable for MAX models.