Technical specs

Tools, file formats, limits, keyboard shortcuts and system requirements of the i3D Workbench (Reference Manual v2026.10).

Tool matrix

What each tool takes in and what it produces.

Tool	Group	Status	Page	Input	Output
Select Mode	Platform	Available	select-mode.html	—	—
Generate with AI	Input	Available	image_generator.html	—	PNG bitmap (handed to Model Editor)
NC Viewer	Input	Available	ncviewer.html	.nc, .gcode, .g00, .txt	—
Digitized Data to 3D	Input	Available	upload-digitized.html	.nc, .g00, .dig, .pun	STL (binary)
Bitmap to 3D	Input	Available	upload-bitmap.html	BMP, PNG, JPG	STL (binary), GLTF / GLB
VectorLab	Input	Development builds	vectorlab.html	SVG, PNG, BMP	SVG, PLT / HPGL
Moldify	Input	Development builds	moldify.html	STL (binary)	STL (binary or ASCII)
OtkMaster	CAM	Available	otkmaster.html	SVG	PLT / HPGL, G-code (templates)
LaserX	CAM	Available	laserx.html	BMP, PNG, JPG	TXT / G-code laser toolpath, PNG (processed preview)
LaserArt3D	CAM	Available	laserart3d.html	STL (binary)	TXT / G-code laser toolpath, PNG (rendered bitmap)
MillX	CAM	Available	milling.html	STL (binary)	G-code (.nc), STL (processed result)
Mill2D	CAM	Coming soon	mill2d.html	—	—
MillForce	CAM	Development builds	millforce.html	—	—

Format	Role	Tools
BMP / PNG / JPG	Input images for Bitmap to 3D and LaserX; brightness = height (3D) or power (laser).	Bitmap to 3D, LaserX, VectorLab (reference)
SVG	Vector drawings. Contours are extracted from SVG paths.	OtkMaster, VectorLab
STL (binary)	Triangle mesh. Input for MillX, LaserArt3D and Moldify; output of Bitmap to 3D, Digitized, MillX and Moldify. ASCII STL is not accepted as input.	MillX, LaserArt3D, Moldify, Bitmap to 3D, Digitized
G-code (.nc / .gcode / .g00 / .txt)	Toolpath programs: exported by MillX and viewed in NC Viewer (G0/G1/G2/G3, plus laser Q power).	MillX, NC Viewer
GLTF / GLB	Output of Final View. Geometry + materials + textures.	Bitmap to 3D
PLT / HPGL	Plotter/cutter format exported by OtkMaster and VectorLab.	OtkMaster, VectorLab
TXT (laser toolpath)	Plain-text G-code-like file exported by LaserX / LaserArt3D using the post-processor templates.	LaserX, LaserArt3D
.nc / .g00 / .dig / .pun (digitized)	Touch-probe digitizer files accepted by Digitized Data to 3D.	Digitized

Item	Value
Maximum upload size	300 MB per file (STL, images, scans, G-code)
Slider debounce	500 ms after the last change before the server is called
Login lockout	5 failed attempts → 15 minutes
ATC tool positions	10 per user
Operations per milling job	3
Moldify hole arrays	2 (top, bottom), count 0 = none
AI image resolution	256×256 … 1024×1024
Playback speed (NC Viewer)	1 – 5000 segments/s
Browser storage	Last LaserX result, ATC tools and post-processor profiles are cached per user

printf-style templates turn abstract toolpaths into your controller's G-code dialect.

Placeholder	Meaning	Used in
`%.2f`	Coordinate (X, Y or Z in order of appearance), 2 decimals	Move / Cut / PenUp / PenDown templates (OtkMaster, LaserX, LaserArt3D, MillX)
`%i`	Integer laser power (Q)	Cut template (LaserX, LaserArt3D)
`Q0` / `Q%i`	Laser off / laser power word	Move / Cut (laser tools)
`M10` / `M11`	Laser enable / disable (controller-specific)	Default laser templates

Key	Action	Tools
`Scroll`	Zoom in / out	OtkMaster, VectorLab, MillX, Final View, NC Viewer, LaserArt3D
`Left drag`	Pan canvas	OtkMaster, VectorLab
`Click contour`	Select contour, show dimensions	OtkMaster
`Left drag`	Orbit the 3D view	NC Viewer, MillX, LaserArt3D, Moldify, Final View
`Right drag`	Pan (NC Viewer) / Rotate view (MillX, Model View)	NC Viewer, MillX, Model View
`← / →`	Rotate model around Z	MillX
`1 – 4`	Switch material (PBR / Matcap / Curvature / Normal)	MillX, Final View, Model View
`5`	Milling analysis bitmap texture	MillX
`M`	Toggle material mode	Model Editor, Final View
`W`	Toggle wireframe overlay	Final View
`Space + drag / Middle mouse`	Pan	VectorLab
`Ctrl+0`	Fit to window	VectorLab
`S / R / E / L / P / T`	Select / Rectangle / Ellipse / Line / Pen / Text tools	VectorLab
`Shift (while drawing)`	Constrain to square / circle / 45°	VectorLab
`Ctrl+N / Ctrl+O`	New document / Open SVG	OtkMaster
`▶ ⏸ ⏮ ⏭`	Playback controls	NC Viewer

Browser	Current desktop Chrome, Edge or Firefox (recommended) with WebGL 2 enabled
Operating system	Any desktop OS that runs those browsers — Windows, macOS, Linux
GPU	Any WebGL 2-capable GPU; very old GPUs are not supported
Screen	At least 1366 px wide (three-column editor layout); not designed for phones
Computation	Server-side, on a high-performance C++ backend — the browser only displays results
Connection	Internet connection required
Account	Required; passwordless e-mail login code; 5 failed attempts lock the account for 15 minutes
Uploads	Up to 300 MB per file; large production files stream through Cloudflare R2

Need a specific machine, controller dialect or format? Ask us before you buy. Full details: Reference Manual.