Delta 3D printers compared: build size and claimed speed

The FLSUN V400 Max is the largest delta 3D printer in the database. It prints inside a cylinder 500 mm (19.7 in) across and 550 mm (21.7 in) tall, 108 liters. The table lists all four delta printers in the database, largest build volume first.

Delta printers print in a cylinder, so the build volume column gives the diameter and height (Ø × H). Speeds and accelerations are maker claims, and a dash means the maker publishes no figure.

What is the largest delta 3D printer?

The largest delta 3D printer in this database is the FLSUN V400 Max. Its cylindrical build volume measures 500 mm across and 550 mm tall (19.7 × 21.7 in), or 108 liters. That is about three times the next delta, the FLSUN V2 Max, at Ø 340 × 390 mm (35.4 liters).

A delta’s quoted height does not hold across the whole circle. FLSUN’s store lists the V400 Max as “500mm x 550mm (max. 480mm height)”. For the FLSUN S1 Pro, FLSUN gives 430 mm at the center and 383 mm at the edge. Check a tall, wide part against the lower figure.

A delta’s round volume is still smaller than the biggest box-shaped printers. The largest CoreXY printer in the database (a box-frame layout whose bed moves only in Z), the Sovol SV08 Max, builds 500 × 500 × 500 mm, or 125 liters. The large-format printers list covers every motion system.

Which delta 3D printers are still sold?

All four delta printers in the database are listed as shipping: the FLSUN V400 Max, V2 Max, S1 Pro and T1 Max. Each was checked against the maker’s pages on 2026-09-29. All four come from FLSUN, which has concentrated on delta printers since 2017. No other maker’s delta is in the database.

The database covers consumer and prosumer desktop printers. Professional and industrial delta machines, such as Italy’s Delta WASP range, are outside it.

The four differ in enclosure and price. The S1 Pro is the only enclosed one, with a 50 °C chamber and a HEPA (high-efficiency particulate air) plus activated-carbon filter. The other three are open-frame. The T1 Max launched at $549 and the S1 Pro at $1,099. The database has no launch price on record for the V400 Max or V2 Max.

How fast are delta 3D printers?

FLSUN, the only delta maker in the database, claims some of the highest speeds on record. It lists 1,200 mm/s and 40,000 mm/s² for the S1 Pro and V2 Max, 1,000 mm/s and 30,000 mm/s² for the T1 Max, and 600 mm/s and 30,000 mm/s² for the V400 Max. These are maker claims, not measured print speeds.

For comparison, the 29 shipping CoreXY printers in the database that publish a top speed claim 300 to 1,200 mm/s, with a median of 600 mm/s. The 28 that publish an acceleration claim 20,000 to 40,000 mm/s², median 20,000 mm/s². Only the CoreXY Sovol Zero matches the 1,200 mm/s top claim.

A top speed figure is how fast the toolhead can move, not how fast a part finishes. The rate at which the hotend melts plastic sets the real limit. FLSUN claims 110 mm³/s of volumetric flow for the S1 Pro and V2 Max and 90 mm³/s for the T1 Max, and publishes none for the V400 Max.

The speed claims guide shows how the three figures fit together. The delta printer guide explains why the layout moves fast, and the motion systems topic compares every layout.