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  3. B1 20W vs S70 Max 70W

Longer B1 20W vs Sculpfun S70 Max 70W

What B1 20W does better (2) and where S70 Max 70W wins (8) — every spec side by side.

Longer B1 20W
Longer · 2023B1 20W
8.1Score
2 advantages≈ US$480
vs
Sculpfun S70 Max 70W
Sculpfun · 2024S70 Max 70W
9.0Score
8 advantages≈ US$1,600
Higher score
8.1Power & cutting9.2
8.0Speed8.0
4.4Precision3.4
8.9Work area9.6
3.2Safety7.2
3.5Features & ease of use7.7

Why is B1 20W better than S70 Max 70W?

  1. Laser spot size0.1 mm vs 0.15 mm+50%
  2. Max cutting depth – wood / plywood (one pass)25 mm vs 20 mm+25%

Why is S70 Max 70W better than B1 20W?

  1. Laser output power20 W vs 70 W3.5×
  2. Work area (surface)1,980 cm² vs 6,640 cm²3.4×
  3. Air assistNo · B1 20W: Yes
  4. Autofocus / auto heightNo · B1 20W: Yes
  5. Flame / fire detectionNo · B1 20W: Yes
  6. Wi-FiNo · B1 20W: Yes
  7. Work area width (X)450 mm vs 830 mm+84%
  8. Work area depth (Y)440 mm vs 800 mm+82%
Specifications

Side by side

Longer B1 20WLonger B1 20W≈ US$4808.1
Sculpfun S70 Max 70WSculpfun S70 Max 70W≈ US$1,6009.0
General
Laser sourcesBlue diode (≈455 nm)Blue diode (≈455 nm)
Motion systemGantry (XY rails)Gantry (XY rails)
Two laser sourcesNoNo
Laser power
Laser output power20 W70 W
Work area
Work area450 × 440 mm830 × 800 mm
Work area width (X)450 mm830 mm
Work area depth (Y)440 mm800 mm
Work area (surface)1,980 cm²6,640 cm²
Work-area extension kitYes—
Speed & cutting
Max engraving / travel speed600 mm/s600 mm/s
Max cutting depth – wood / plywood (one pass)25 mm20 mm
Precision
Laser spot size0.1 mm0.15 mm
Linear rails—Yes
Safety
Enclosed (fully covered)NoNo
Flame / fire detectionNoYes
Emergency stop button—Yes
Tilt / movement sensor—Yes
Built-in fume filter / purifier—Yes
Features
Air assistNoYes
Built-in cameraNoNo
Autofocus / auto heightNoYes
Rotary attachment supportYes—
Touchscreen / control panelYesYes
Offline engraving (no computer)—Yes
Connectivity & software
ConnectionsUSB, SD / USB driveWi-Fi
Wi-FiNoYes
USBYes—
SD / TF cardYes—
Phone app controlYesYes
Compatible softwareLightBurn, LaserGRBLLightBurn, LaserGRBL
LightBurn compatibleYesYes
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