The VEHO 3A is the fully enclosed version of Tronxy's VEHO 3: 330 x 330 x 400 mm, Klipper firmware and 700 mm/s listed speed. It is for hobbyists and small workshops who want an enclosed Klipper printer for ABS, ASA and nylon at a modest price.
Does the Tronxy VEHO 3A 3D printer work with SimplyPrint, OctoPrint, Mainsail and Fluidd?
Each way of connecting it, what it needs, and how to set it up.
Ships Klipper with Moonraker: KlipperScreen on the touchscreen, Mainsail in the browser at the printer's IP (manual, resonance-compensation section).
Source
What you need: Nothing extra: the printer runs Klipper as it ships
Ships Klipper; OctoPrint only on top of it.
Source
Ships with Klipper: OctoPrint only runs on top of it, through the OctoKlipper plugin
What works with SimplyPrint
Connected through Klipper (Moonraker), SimplyPrint supports most of what it offers on the Tronxy VEHO 3A: the camera and AI failure detection, remote printing, skipping objects, temperature and movement control and AutoPrint. Not yet in SimplyPrint through Klipper (Moonraker): download the file before the print starts.
Every SimplyPrint feature, for each way of connecting it to SimplyPrint
Connected to SimplyPrint through
SimplyPrint feature
Klipper (Moonraker)
Compatible
Monitoring
Live status and progress
Yes
Webcam
Yes1
AI failure detection
Yes1
Time left
Yes
Layer progress
Yes
Temperatures
Yes
Printing
Starting a print
Yes
Pause, resume and cancel
Yes
Skip objects
Yes
Printer control
Change temperatures
Yes
Moving with the controls
Yes
Homing
Yes
Extrude and retract
Yes
Change print speed
Yes
Fan speed
Yes
Baby stepping
Yes
Send G-code
Yes
Calibration
Change filament
Yes
Bed leveling
Yes
Z-Offset Calibration
Yes
Automation
AutoPrint
Pro
Yes
Download the file before the print starts
No2
Connected to SimplyPrint through Klipper (Moonraker)
Compatible
Monitoring
Live status and progressYes
WebcamYes1
AI failure detectionYes1
Time leftYes
Layer progressYes
TemperaturesYes
Printing
Starting a printYes
Pause, resume and cancelYes
Skip objectsYes
Printer control
Change temperaturesYes
Moving with the controlsYes
HomingYes
Extrude and retractYes
Change print speedYes
Fan speedYes
Baby steppingYes
Send G-codeYes
Calibration
Change filamentYes
Bed levelingYes
Z-Offset CalibrationYes
Automation
AutoPrint ProYes
Download the file before the print startsNo2
Works
Depends
Not supported
Needs a camera
SimplyPrint doesn't support this through this connection yet.
What slicer to use for the Tronxy VEHO 3A
None of the slicers in SimplyPrint's cloud has a ready-made profile for the Tronxy VEHO 3A, but it takes standard G-code: start from a similar printer's profile and set the bed size, height and nozzle to match.
We only list slicers you can use in the SimplyPrint cloud, so there may be others for the Tronxy VEHO 3A.
Cloud-Based Slicer for Tronxy VEHO 3A
All supported slicers - directly in your browser with SimplyPrint's online cloud slicer. No installation required. Slice your Tronxy VEHO 3A models from any device, anywhere in the world!
Automatic Profile Updates: Profiles are automatically checked and fetched from the slicer GitHub repositories every day, as well as from our own open-source community-driven slicer profile database. This ensures you always have access to the latest profiles.
Note: Other slicers, such as Simplify3D, ideaMaker, SuperSlicer and KISSlicer, aren't in our cloud, so we don't track their profiles. They may still work well with your Tronxy VEHO 3A: check the slicer's own documentation or forums for a profile. You can also contribute profiles to our open-source slicer profile database on GitHub.
The app for the Tronxy VEHO 3A
Tronxy doesn't make an app for the Tronxy VEHO 3A. SimplyPrint works as its app: on your phone and in any browser, with a slicer in the cloud.
There's no plate swapper or auto-ejection kit for the Tronxy VEHO 3A in SimplyPrint yet, but AutoPrint can still keep it printing: once the plate is clear, it starts the next job from your queue.
Enclosed printers push their prints out
The Tronxy VEHO 3A's bed only moves up and down inside its enclosure, so instead of swapping plates, a push-off routine lets the toolhead push the cooled print off the plate and out through its front door, which has to be open while it runs. Some printers won't print with the door open (the Prusa CORE One has a door sensor), so check yours first.
Ways to automate it
Push prints off with the toolheadOn a CoreXY printer, a G-code routine can push the cooled print off the front of the plate before the next job starts.
Your own ejection G-codeWrite the routine that clears your plate, and AutoPrint runs it after every print.
Tronxy VEHO 3A specifications: bed size, print height and more
Its size, temperatures, multi-material and how it connects, from the maker and our own research.
Read more by the manufacturer
Size
Build volume
330 x 330 x 400 mm
Bed type
Square
Bed size
330 x 330 mm
Max print height
400 mm
Printing
Enclosure
Fully enclosed
Motion system
CoreXY
Max print speed
600 mm/s
Max extruder temperature
320 °C
Has heated bed
Yes
Max bed temperature
100 °C
Number of nozzles
1
Toolheads
1
Direct drive
Yes
Probing tool / Auto Bed Leveling
Yes
Filament width
1.75 mm
Multi-material
Toolchanger or hotend changer
No
IDEX (independent dual extruders)
No
Connecting
Connectivity
Ethernet, USB, SD card
Prints from
microSD card
Supports serial printing
No
Shipped firmware
Klipper
Files and slicing
Supported file formats
G-code (.gcode, .gco, .g)
The printer
Printer manufacturer / brand
Tronxy
Printer model name
VEHO 3A
Made by a company from
China
Launched
May 2025
Still made
Yes
Disclaimer:
We strive to keep this information as current and accurate as possible, but cannot guarantee its completeness or reliability. Our data is based on user submissions and manufacturer references.
What filament can the Tronxy VEHO 3A print?
Filament compatibility for the Tronxy VEHO 3A: the materials Tronxy lists for it.
Filament
Suitability
Notes
PLA
Great
On the maker's list of materials for this printer.
PETG
Great
On the maker's list of materials for this printer.
TPU & flexibles
Great
On the maker's list of materials for this printer.
ABS & ASA
Great
On the maker's list of materials for this printer.
Nylon (PA)
Great
On the maker's list of materials for this printer.
Polycarbonate (PC)
Great
On the maker's list of materials for this printer.
Carbon-fiber & glass-filled
Great
On the maker's list of materials for this printer.
Tip: this is a general guide from the printer's specs - always check your filament's recommended settings. With SimplyPrint you can save a profile for each spool and track exactly what filament you have in stock.
Best filament for the Tronxy VEHO 3A
Filaments the Tronxy VEHO 3A prints well, Tronxy's own first, then the best known.
Choose the VEHO 3A when you want an enclosed Klipper printer with a 330 mm plate, for ABS, ASA, nylon and PC. The enclosure is what it adds over the VEHO 3; the VEHO 4A has a larger 400 x 400 plate. It has no independent review, and our facts list Ethernet, USB and SD but not Wi-Fi, so plan on a network cable.
Pros
Fully enclosed with a door, on a 330 x 330 x 400 mm build volume (Tronxy).
Klipper firmware at up to 700 mm/s, so it works with SimplyPrint through Klipper.
Four independent Z motors, 36-point auto-levelling, seven linear guides and an all-metal reinforced frame (Tronxy).
Removable magnetic PEI bed and a dual-drive large-gear extruder with resonance compensation (Tronxy).
Materials list in our facts includes ABS, ASA, nylon, PC and composites.
Cons
Our facts list Ethernet, USB and SD but not Wi-Fi, so it likely needs a network cable.
No camera in our facts.
No independent hands-on review found; 700 mm/s is Tronxy's headline, not a tested figure.
Express and air shipments are priced without import duties and taxes, which the buyer pays at customs; Tronxy lists sea shipments as tax-free, door to door.
Who it suits
SchoolsGood fit
Enclosed with a Klipper interface and SimplyPrint for approvals, but without a review we cannot vouch for reliability.
HobbyistsGood fit
An enclosed Klipper printer, if you accept the unproven reliability.
BusinessesCan work
Enclosed prototyping in ABS and nylon, with no independent track record.
Print farmsNot a good fit
No camera, no plate-swap kit in our facts and no reliability record for a fleet.
Printers from the same maker, of a similar size, printing the same engineering materials or multi-material like it, that you can buy today. Compare up to four side by side, with their specs and how each connects.
Who makes the Tronxy VEHO 3A, and how open Tronxy leaves you: whether its printers run without its cloud, take any filament and slicer, and can be repaired. Each area is rated from public sources.
Openness: Open (4.3 of 5)
Open
Walled gardenOpen
Tronxy (Shenzhen Tronxy Technology Co., Ltd) is a Shenzhen 3D printer maker whose founder built the company's first printer in 2013. It sells low- and mid-priced FDM printers, from the X5SA and XY-3 series up to the very large VEHO line (1,000 mm and more), plus Moore clay printers, through its own store, Amazon, eBay, AliExpress, Alibaba and dealers. Buyers are hobbyists, schools and small businesses that want a large build volume for little money.
Mostly open: Marlin source on GitHub, Klipper on the newer large printers, open filament and no cloud. Documentation is thin, and firmware downloads go through an email request.
Firmware and custom firmware ●●●●●
Tronxy publishes Marlin source for its STM32/GD32 boards on GitHub (tronxy3d) under GPL-3.0, covering nearly 30 X5SA, XY, D01 and VEHO 500-800 variants, last updated February 2024. Its newer VEHO PRO and A series ship with Klipper, and it sells a Klipper upgrade kit for the X5SA.
[8][9][6][7]
Local control and integrations ●●●●●
We found no Tronxy cloud service or account. The Klipper VEHO PRO prints from a USB flash drive or over a USB data cable, Wi-Fi or Ethernet, all on your own premises, and Tronxy publishes the Marlin source for its X5SA and XY printers, which host software such as OctoPrint drives over USB.
[7][9][11]
Third-party filament, slicers and parts ●●●●●
Open filament (1.75 mm, with 2.85 mm print heads for the VEHO) and standard G-code, which any slicer produces. VEHO hotends and print heads such as the Ext06 are Tronxy's own parts.
[6][7]
Repairs and spare parts ●●●●●
Tronxy's store sells model-specific mainboards, hotends, nozzles and extruder kits for current and older lines (X5SA, XY, VEHO), including Klipper-version parts.
[6]
Community and documentation ●●●●●
Firmware source and build steps are on GitHub, and upstream Klipper ships configs for eight Tronxy models. Tronxy's own download page asks owners to email for the right firmware instead of offering it directly.
[4][8][10]
Pros
Very large build volumes for the price, up to 1,000 mm and more in the VEHO line.
Marlin source is public on GitHub, and the newer VEHO models run open-source Klipper.
No cloud or account: print over USB, memory card, Wi-Fi or Ethernet.
Spare mainboards, hotends and nozzles sold for current and older models.
Cons
Firmware on Tronxy's website is by email request rather than a direct download.
Dozens of models and variants with similar names (the published firmware alone covers nearly 30), so check carefully which firmware and parts fit.
VEHO hotends and print heads are Tronxy-specific parts.
Track record
October 2022: Tronxy began publishing Marlin source for its STM32F446/GD32-based boards on GitHub (tronxy3d) under GPL-3.0; it updated it until February 2024.
[8][9]
December 2020: Tronxy launched the XY-3 SE on Kickstarter; the company says shipping finished in April 2021.
[2]
Researched from 11 sources, last checked October 18, 2026. Show sources
Is the Tronxy VEHO 3A compatible with SimplyPrint?
Yes. You can connect the Tronxy VEHO 3A to SimplyPrint via Klipper (Moonraker), then slice, queue, start and monitor prints from your browser or the mobile app.
How do I connect the Tronxy VEHO 3A to SimplyPrint?
Follow our step-by-step setup guide for the Tronxy VEHO 3A. It shows how to connect it via Klipper (Moonraker), what you need for each, and which to pick.
What slicer should I use for the Tronxy VEHO 3A?
Cura, PrusaSlicer and OrcaSlicer all work with the Tronxy VEHO 3A, and you can run any of them in SimplyPrint's online browser slicer - no install needed, on any device.
Can I use OrcaSlicer with the Tronxy VEHO 3A?
Yes, but OrcaSlicer has no built-in profile for the Tronxy VEHO 3A that we know of: start from a similar printer's profile and set the bed size, height and nozzle to match.
What filament can the Tronxy VEHO 3A print?
Tronxy lists PLA, ABS & ASA, PETG, TPU & flexibles, Nylon (PA), Polycarbonate (PC) and Carbon-fiber & glass-filled for the VEHO 3A.
Does the Tronxy VEHO 3A work with OctoPrint or Klipper?
The Tronxy VEHO 3A works with Klipper (Mainsail and Fluidd), and SimplyPrint connects to it through them - so you get cloud access, a queue and camera monitoring on top.
What is the Tronxy VEHO 3A's bed size and build volume?
The Tronxy VEHO 3A has a 330 x 330 mm print bed and prints up to 400 mm tall, a build volume of about 330 x 330 x 400 mm. See the full specifications table above for bed type, temperatures and more.
When did the Tronxy VEHO 3A come out?
Tronxy launched the VEHO 3A in May 2025.
Can the Tronxy VEHO 3A eject prints automatically?
There's no kit for it that we support yet, but SimplyPrint's AutoPrint can push prints off with the toolhead, or run your own ejection G-code, and then start the next job from your queue.
Where can I buy the Tronxy VEHO 3A?
From Tronxy's own store, which has shops for everywhere else. The links on this page go to those stores; some are affiliate links, so we may earn a commission at no extra cost to you.
Affiliate disclosure: Some links on this page are affiliate links. We may earn a commission if you make a purchase, at no extra cost to you. As an Amazon Associate, we earn from qualifying purchases.
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