Uploaded February 2026 | Updated September 2026, 2 weeks ago
The Acmer P1 S Pro is a 6W diode laser engraver, but it turns out this machine is actually better than the manufacturer claims! In this in-depth Acmer P1 S Pro review, I show you which setting you should change immediately to get sharper engravings and better results than the manual recommends.
Buy the Acmer P1 S Pro here:
acmerlaser.com/products/acmer-p1-s-pro-laser-engraving-machine
(Not an affiliate link)
In this video, I take a detailed look at the Acmer P1 S Pro 6W laser engraver, including assembly, build quality, safety, software compatibility, and real engraving performance. But most importantly, I explain why the recommended DPI in the manual is not optimal, and how adjusting this setting really improves engraving quality.
What you will learn in this video:
- Why the Acmer P1 S Pro is better than the manual suggests
- The correct DPI settings for the 6W diode laser
- How dot size affects engraving sharpness and photo quality
- A practical defocus trick for faster engraving without loss of quality
- Build quality pros and cons including frame rigidity and roller alignment
- Safety considerations for open-frame diode lasers
- Compatibility with LightBurn and LaserGRBL
- Real-world engraving results on wood and anodized aluminum
The Acmer P1 S Pro uses a 6W blue diode laser with a very fine spot size, which allows for much higher engraving detail than the default 318 DPI suggested by Acmer. By adjusting the DPI to 363 DPI, photo engravings become noticeably sharper with smoother gradients and better detail separation.
This laser engraver is aimed at demanding hobby users and small businesses who want high engraving quality without spending thousands on an enclosed Diode laser. While it lacks enclosure and fume extraction, the engraving performance for the price is genuinely impressive.
Safety note:
Always use proper laser safety glasses rated for 445nm blue diode lasers with at least OD3 protection. Never rely solely on magnetic shrouds or included accessories.
If you found this video useful, please consider liking the video and subscribing to the channel for more laser engraving and maker content.
Buy me a coffee or a spool of filament:
support.3d-printcreator.com (Paypal)
Find my designs on MakerWorld and print them for FREE:
makerworld.com/nl/@3d_printcreator/upload
#acmer #acmerP1SPro #laserengraving #diodelaser #lightburn #maker #smallbusiness
0:00 Acmer P1 S Pro overview
0:29 Unboxing and first impressions
2:09 Build quality and assembly time
2:47 First engraving and safety concern
3:19 Frame rigidity and roller alignment
3:57 Control box and connections
4:26 WiFi and software limitations
6:22 Laser spot size and technical specs
6:44 Why the manual DPI is wrong
7:03 Best DPI settings for sharper engravings
7:32 Faster engraving defocus trick
8:04 Engraving results on wood and aluminum
8:30 Laser safety and eye protection
9:09 Who this laser is for
9:46 Open frame limitations and fumes
10:19 Final verdict and recommendation
10:47 Smaller Acmer laser comparison
11:31 Subscribe and closing
The Acmer P1 S Pro is a 6W diode laser engraver, but it turns out this machine is actually better than the manufacturer claims! In this in-depth Acmer P1 S Pro review, I show you which setting you should change immediately to get sharper engravings and better results than the manual recommends.
Buy the Acmer P1 S Pro here:
acmerlaser.com/products/acmer-p1-s-pro-laser-engraving-machine
(Not an affiliate link)
In this video, I take a detailed look at the Acmer P1 S Pro 6W laser engraver, including assembly, build quality, safety, software compatibility, and real engraving performance. But most importantly, I explain why the recommended DPI in the manual is not optimal, and how adjusting this setting really improves engraving quality.
What you will learn in this video:
- Why the Acmer P1 S Pro is better than the manual suggests
- The correct DPI settings for the 6W diode laser
- How dot size affects engraving sharpness and photo quality
- A practical defocus trick for faster engraving without loss of quality
- Build quality pros and cons including frame rigidity and roller alignment
- Safety considerations for open-frame diode lasers
- Compatibility with LightBurn and LaserGRBL
- Real-world engraving results on wood and anodized aluminum
The Acmer P1 S Pro uses a 6W blue diode laser with a very fine spot size, which allows for much higher engraving detail than the default 318 DPI suggested by Acmer. By adjusting the DPI to 363 DPI, photo engravings become noticeably sharper with smoother gradients and better detail separation.
This laser engraver is aimed at demanding hobby users and small businesses who want high engraving quality without spending thousands on an enclosed Diode laser. While it lacks enclosure and fume extraction, the engraving performance for the price is genuinely impressive.
Safety note:
Always use proper laser safety glasses rated for 445nm blue diode lasers with at least OD3 protection. Never rely solely on magnetic shrouds or included accessories.
If you found this video useful, please consider liking the video and subscribing to the channel for more laser engraving and maker content.
Buy me a coffee or a spool of filament:
support.3d-printcreator.com (Paypal)
Find my designs on MakerWorld and print them for FREE:
makerworld.com/nl/@3d_printcreator/upload
#acmer #acmerP1SPro #laserengraving #diodelaser #lightburn #maker #smallbusiness
0:00 Acmer P1 S Pro overview
0:29 Unboxing and first impressions
2:09 Build quality and assembly time
2:47 First engraving and safety concern
3:19 Frame rigidity and roller alignment
3:57 Control box and connections
4:26 WiFi and software limitations
6:22 Laser spot size and technical specs
6:44 Why the manual DPI is wrong
7:03 Best DPI settings for sharper engravings
7:32 Faster engraving defocus trick
8:04 Engraving results on wood and aluminum
8:30 Laser safety and eye protection
9:09 Who this laser is for
9:46 Open frame limitations and fumes
10:19 Final verdict and recommendation
10:47 Smaller Acmer laser comparison
11:31 Subscribe and closing
