3D Printing Info

Printer comparison

Formlabs Form 4L vs Original Prusa XL+ Dual-Head

Compare hardware, build volume, printing specifications, dated prices and sources.

2 selected · all documented properties

Formlabs Form 4L vs Original Prusa XL+ Dual-Head — documented properties and sources
PropertyFormlabs Form 4LRESINOriginal Prusa XL+ Dual-HeadTOOLCHANGER
Identity
BrandFormlabsPrusa Research
ClassRESINTOOLCHANGER
Identity & Market
Manufacturer & exact marketed model name (verify the exact product identity first)Formlabs Form 4L[1]Original Prusa XL+, Dual-Head variant ("Prusa XL+ Dual-Head" in the e-shop variant data)[2]
Release date (announcement and actual shipping)Not documentedThe XL+ refresh was announced on 13 August 2026, on sale immediately in all toolhead configurations, with assembled printers shipping later in August 2026 and upgrade kits for existing XL owners from around the end of August. The original Original Prusa XL predates it[3]
Street price (USD; dated snapshot per entry)Not documented$2,768.52 on prusa3d.com, Aug 2026 (lowest listed price for the Dual-Head variant; the 2-toolhead Enclosure bundle starts at $3,128.70)[2]
Variants & sibling models — and how to tell them apart (spec-contamination risk)Same Low Force Display engine as the Form 4 but a different machine on every physical figure: 353 x 196 x 350 mm vs 200 x 125 x 210, 46 um vs 50 um pixels, 58.5 kg vs 18.3 kg, 900 W vs 480 W, two resin cartridges vs one. Formlabs lists Basic, Premium and Complete packages, whose prices are not printer-only prices, and no printer-only USD figure was found on a live listing[1]One of three XL+ configurations - Single-Tool $2,128.70, Dual-Head $2,768.52, Five-Head $3,610.18 (Aug 2026). The frame, bed, electronics and 360 mm cube build volume are identical across all three; only the toolhead count, the price and the achievable multi-material workflow change. Toolheads can be added later[2][4]
Physical & Frame
Build volume X×Y×Z (mm) — advertised vs actually usable353 x 196 x 350 mm (Formlabs quotes 24.2 litres)[1]360 x 360 x 360 mm, which Prusa states as 46.7 litres[2]
Machine footprint (mm) & clearance needed (cable/spool overhang)664 x 528 x 794 mm[1]About 700 x 900 x 720 mm (Prusa's own figure is approximate)[2]
Net weight (kg)58.5 kg[1]About 30 kg[2]
Frame construction & materialNot documentedAluminium extrusions and steel sheets (Prusa's comparison table for the XL)[5]
Enclosure: open / enclosed; panel material; door/lidEnclosed cabinet with a UV-blocking cover. Operating temperature 18-28 C[1]Open frame. The Enclosure for Prusa XL+ is an optional add-on; Prusa says the printer is ready for chamber temperatures up to 60 C, that the new better-sealed enclosure reaches around 50 C on the printer's own waste heat, and that 60 C needs an upcoming chamber heater for which no shipping date has been given[2][3]
Kinematics & Motion Hardware
Kinematics (bedslinger i3 / CoreXY / other)Masked stereolithography (MSLA) with the Low Force Display engine; straight-lift peel[1]CoreXY with 1.5 mm GT belts, Input Shaper and Phase Stepping[2]
Belts (type, width, e.g. Gates?)Not documented1.5 mm GT belts[2]
Vibration Compensation / Input Shaping
Input shaping supported? Implementation (Klipper IS / Marlin ZV / proprietary)Not documentedInput Shaper and Phase Stepping[2]
Extruder
Type (direct drive / bowden) & design nameNot documentedNextruder direct drive; each toolhead carries its own extruder, hotend, nozzle and filament[2]
Hotend & Nozzle
Hotend design (proprietary/standard; quick-swap mechanism?)Not documentedQuick-swap nozzles - 0.25 mm for detail, 0.6/0.8 mm for speed, hardened steel for abrasives, high-flow CHT for throughput; toolheads ship with high-flow nozzles[2]
Max nozzle temp claimed AND firmware max temp limit (both values)Not documented290 C claimed max nozzle temperature[2]
Heated Bed & Surface
Max bed temp claimed AND firmware limitNot documented120 C max heatbed temperature[2]
Bed surface (material, texture, coating), single/double-sidedNot documentedSegmented heatbed of 16 individually controlled tiles across the 360 x 360 mm surface, so only the tiles under the part are powered; removable double-sided satin print sheet supplied[2]
Leveling & Z-Offset
Auto bed leveling: probe technology (inductive / strain gauge / load cell / touch probe)Not documentedLoad-cell sensor - the nozzle is the probe, which Prusa says automatically accounts for nozzle changes, surface textures and thermal expansion and removes manual Z-offsets. Toolhead-to-toolhead alignment on the XL+ uses a separate permanently mounted eddy-current Tool Offset Sensor, replacing the removable mechanical pin used on the original XL[2][3]
Filament Handling & Detection
Filament runout sensor (type, location)Not documentedFilament sensors fitted; Prusa's comparison table lists two filament sensors for the XL[5]
Multi-material/multi-color capability or official upgrade pathNot documentedTwo independent toolheads with automatic tool changing - two materials or two nozzle sizes in one job, with no purge tower waste between materials because each head keeps its own nozzle[2]
Cooling & Air Handling
Part-cooling fan(s): count, size, ducting designNot documented360-degree part cooling on each toolhead, new on the XL+ and matching the MK4S and CORE One arrangement; Prusa states it delivers more airflow and distributes it more evenly around the nozzle. Additional fans and heatsinks cool the electronics. Fan sizes are not published[2][3]
Electronics & Power
Mainboard model & MCU (exact chip markings if teardowns exist)Not documentedCustom 32-bit xBuddy electronics with STM32 (Prusa's comparison table for the XL)[5]
Input voltage (110/220 V, switch or auto)100-240 VAC, 9 A, 50/60 Hz, 900 W[1]Not documented
Total rated power draw900 W[1]Not documented
Firmware & Openness
Firmware base & current version (Klipper fork / Marlin fork / proprietary)Proprietary; print preparation is PreForm[1]Open-source firmware - Prusa states "Firmware: Open-source; ships with the full current Prusa feature set", and the XL is covered by the prusa3d/Prusa-Firmware-Buddy source tree[2][6]
Connectivity, UI & Camera
Display: size, type, touch?7-inch interactive touchscreen, 1280 x 800 (control panel — not the masking LCD, see W1)[1]3.5-inch 65k-colour screen with touch control (Prusa's comparison table for the XL)[5]
On-device UI capabilities (model preview, per-object controls, etc.)Not documentedOn-device touch UI; Prusa Connect and the Prusa mobile app are optional - Prusa states the machine is fully offline capable[5][2]
WiFi (band/standard), Ethernet, USB ports, SD/flash-driveDual-band Wi-Fi, Gigabit Ethernet, USB-C 2.0[1]Ethernet, optional Wi-Fi; USB drive for print files. Prusa Connect optional and fully offline operation supported[2][5]
Materials Support
Officially supported filament listFormlabs resin range as for the Form 4; biocompatible materials require a B-series machine[1]PLA, PETG, ASA, ABS, PC, PA (nylon), TPU, PVA, HIPS, PP, CPE, PVB and carbon-fibre composites. Prusa states an open material policy - any brand of 1.75 mm filament, no chips and no subscriptions[2]
Safety
Thermal runaway protection (verify in firmware source if at all possible)Not documentedOpen-source firmware on the xBuddy platform, which carries hardware overcurrent protection cutting heater and heatbed power above 15 A[7][6]
Reliability, Support & Ecosystem
Warranty length & support reputation (evidence, not vibes)Not documented2-year warranty for consumers in the EU, Liechtenstein, Switzerland, Norway and Iceland; 1 year for EU enterprises and 1 year for the rest of the world, which includes the United States. A printer bought from a reseller or privately carries 1 year from the original delivery date and is handled by the reseller. Prusa advertises 24/7 chat and e-mail support in seven languages[8][5]
Independently Measured Performance
Dimensional accuracy measurements (third-party, with numbers)XY dimensional tolerance +/-0.15% — a manufacturer specification[1]Not documented
Resin & MSLA
Masking LCDLow Force Display masking LCD with a 46 um pixel size. Formlabs does not publish the screen diagonal or pixel count[1]Not documented
Light sourceBacklight unit with uniform-wavelength LEDs behind collimating lenses, with integrated cooling[1]Not documented
Layer height range25-200 um[1]Not documented
Resin vat & feedingTwo next-generation resin cartridges. No vat capacity published[1]Not documented

Manufacturer claims, independent measurements, packages and test conditions retain their source wording. FDM linear speed and resin vertical speed use different units and are not directly comparable. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.

Sources for this comparison

  1. Formlabs resin printer technical specifications (Form 4 / 4B / 4L) formlabs.com · 2026-08 · vendor
  2. Original Prusa XL+ product page (spec block and variant price data) prusa3d.com · 2026-08 · vendor
  3. Prusa blog - Better Prints, Easier Use: Prusa XL+, CORE One L+ and CORE One+ (Gen 2), Our Big Product Update (published 13 August 2026) blog.prusa3d.com · 2026-08 · doc
  4. Prusa 3D printers category listing with live e-shop prices, Aug 2026 prusa3d.com · 2026-08 · vendor
  5. Original Prusa MK4S 3D Printer product page (Technical Parameters + CORE One+/MK4S/XL comparison table) prusa3d.com · 2026-08 · vendor
  6. GitHub - prusa3d/Prusa-Firmware-Buddy (firmware for MINI, MK4, XL and CORE One) github.com · 2026-08 · doc
  7. Prusa blog - Original Prusa MK4 is here (published 29 March 2023), including the MK4 specification table and launch prices blog.prusa3d.com · 2026-08 · doc
  8. Prusa Knowledge Base - Warranty help.prusa3d.com · 2026-08 · doc