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Atomstack X20 Pro3mm MDF

3 community-tested settings for cut, engrave 3mm MDF on the Atomstack X20 Pro. Always run a test on scrap material first.


Power20W
Laser Typediode
Work Area400×400mm
Material3mm MDF
← All Atomstack X20 Pro settings3mm MDF on all machines →

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These 3 settings cover cut and engrave 3mm MDF on the Atomstack X20 Pro (20W diode laser). Wood results vary by grain direction and moisture content — always run a quick test on scrap before cutting your final piece. Some settings use multiple passes for a cleaner cut — pin or tape your material flat before running to prevent shift between passes.

3 settings

3mm MDFcut
Speed250 mm/minPower100%Passes3
💨 Air Assist

MDF needs 3 passes at 20W. Consider 2 focus heights for deep cuts.

Buy 3mm MDF
3mm MDFengrave
Speed2000 mm/minPower40–45%Passes1DPI254
Buy 3mm MDF
3mm MDFcut
Speed200 mm/minPower100%Passes2
💨 Air Assist

Community-sourced: Atomstack A20/X20 Pro forum users report 3mm MDF requires maximum power (100%) and slow speeds. One user confirmed 100mm/min at 100% power in 1 pass; 200mm/min in 2 passes (with air assist) is a more common balanced approach to reduce charring while ensuring full cut. MDF-core plywood confirmed harder to cut than veneer-core in same thickness. Source: lahobbyguy.com/bb/viewtopic.php?t=1704, forum.lightburnsoftware.com/t/atomstack-x20-pro-cutting-ability-why-cant-i-cut-anything/75758. Air assist is critical for MDF to clear smoke and prevent fire.

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Frequently asked questions

What speed should I use to cut 3mm MDF on the Atomstack X20 Pro?

The top-rated community setting uses 250 mm/min at 100% power, 3 passes. MDF needs 3 passes at 20W. Consider 2 focus heights for deep cuts.

How many passes does the Atomstack X20 Pro need to cut 3mm MDF?

Settings here range from 1 to 3 passes. Multiple passes give a cleaner edge but increase the risk of material shift — always pin or tape your material flat before running.

Do I need air assist for 3mm MDF on the Atomstack X20 Pro?

Yes — 2 of the 3 settings here specify air assist on. It clears smoke and debris from the cut line, improves edge quality, and reduces fire risk especially during cutting.

What DPI should I use to engrave 3mm MDF on the Atomstack X20 Pro?

Settings here use 254 DPI. For photographic detail or fine artwork, consider testing at higher DPI, but expect longer run times.

Need a jig to hold your 3mm MDF?
Precision alignment templates sized for your exact laser bed. SVG + DXF instant download.
Browse Jigs →

Now make something with 3mm MDF

Templates ready to cut on your Atomstack X20 Pro once you've dialed in the settings.

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3" or 4" Coaster Jig
Precision alignment jig for laser engraving 3-inch or 4-inch coasters
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Ornament Jig
Precision alignment jig for round ornament blanks. Includes hanging hole marker. Choose 2.5", 3", or 3.5" diameter. SVG sized for your machine
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SVG Cut Files
Animals, crests & more
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What Makers Say

★★★★★5.0· 6 reviews
View all on Etsy →
★★★★★

"Used it with a Glowforge — engraved beautifully with no changes. I will be purchasing more digital downloads from this shop."

Anna

★★★★★

"I was struggling with lining up my NFC business cards. I was able to not only line them up much better but also do multiple cards at once — making that job so much easier."

Camp

★★★★★

"Excellent quality and design. Cut clean and neat!"

LYNN

★★★★★

"Great jigs. Appreciate the time saved not having to build this from scratch!"

Bruce

★★★★★

"Excellent quality. Item as described. Expectations exceeded."

Michael

★★★★★

"This template made my slate coasters so much easier. 4×4 coasters from Michaels drop in easily and are easy to remove. Def worth it."

chris

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