Bedslinger 3D printers by claimed speed and acceleration

Five bedslingers share the highest claimed figures in the database: the Anycubic Kobra 3, Kobra 3 V2, Kobra 4, Kobra X and Creality Ender-3 V3 each claim 600 mm/s and 20,000 mm/s². The table lists all 20 shipping bedslingers in the database, highest claimed acceleration first.

Every figure is the maker’s claim, not a measured result. A dash means the maker publishes no figure, and those rows sort last. The Original Prusa MK4S lists neither speed nor acceleration. The Snapmaker Artisan lists a 180 mm/s maximum recommended speed and no acceleration.

A bedslinger moves the bed along Y under a toolhead on an X gantry; the motion systems comparison explains the layout.

What is the fastest bedslinger 3D printer?

On makers’ claims, no single bedslinger is fastest: five tie at the top of both lines. The Anycubic Kobra 3, Kobra 3 V2, Kobra 4, Kobra X and Creality Ender-3 V3 each claim 600 mm/s and 20,000 mm/s². No shipping bedslinger in the database claims more on either line. These are top speeds, not typical ones.

Four more printers match the top on one line only. The Anycubic Kobra 3 Max and Kobra 3 Max V2 claim 600 mm/s at 10,000 mm/s². The Elegoo Neptune 4 and Neptune 4 Pro claim 20,000 mm/s² at 500 mm/s.

Creality sells the Ender-3 V3 as a “CoreXZ” printer: its X and Z axes are “rigged together” so two motors drive them in unison. Its bed still moves along Y, and Creality’s own page calls the printer “a new benchmark for bed slingers.”

Only five of the 20 shipping bedslingers publish a flow rating. The highest is the Creality Hi at 40 mm³/s.

How fast can a bedslinger print?

Shipping bedslingers in the database claim top speeds of 180 to 600 mm/s, with a median of 500 mm/s across 19 records. Two makers also give an everyday figure at half the top. Creality gives 300 mm/s as the Ender-3 V3’s typical printing speed, and Anycubic recommends 300 mm/s for the Kobra 3.

For comparison, shipping CoreXY printers in the database claim 300 to 1,200 mm/s, with a median of 600 mm/s across 29 records. The bedslinger ceiling equals the CoreXY median.

A claimed top speed is rarely the speed a print runs at, because the hotend has to melt plastic fast enough to fill each line. The Ender-3 V3 claims 32 mm³/s of flow. A 0.45 mm wide, 0.2 mm tall line has a 0.09 mm² cross-section. At 32 mm³/s that line tops out near 356 mm/s (32 ÷ 0.09), well under the 600 mm/s claim.

Short moves can end before the toolhead reaches top speed. The speed claims guide covers what each figure measures, and the volumetric flow guide gives the cap for other line sizes.

What acceleration can a bedslinger reach?

Makers claim 2,500 to 20,000 mm/s² for shipping bedslingers in the database, with a median of 12,000 mm/s² across 18 records. Seven claim the 20,000 mm/s² ceiling. Shipping CoreXY printers claim 20,000 to 40,000 mm/s² (median 20,000, 28 records), so the bedslinger ceiling is the CoreXY floor.

The lowest claim is 2,500 mm/s² on the Creality Ender-3 V3 SE. Anycubic recommends 10,000 mm/s² for the Kobra 3, half its 20,000 mm/s² maximum.

Bedslinger acceleration is capped by what the Y motor has to move: the bed, the build plate and the part on it. The resonance compensation guide for Klipper, an open-source printer firmware, lists “heavy moving mass” among the mechanical causes of ringing. It warns that the bed’s resonance frequency drops as filament piles up on it. For that reason it suggests the EI input shaper “may be more suited for bed slinger printers.”

A lower resonance frequency also makes input shaping, the firmware feature that cancels that vibration, smooth away more fine detail. Klipper’s calibration tool answers more smoothing with a lower suggested max_accel. The heavier the part, the less acceleration a bedslinger can use cleanly. A CoreXY’s bed moves only down, so its sideways moving mass stays constant.

The CoreXY speed guide explains that difference, and the motion systems topic covers every layout.