4.5.1

Release 4.5.1

Bug Fixes

• Fixed findConnectedSurface for pocket in indexed mode
• Fixed use of flatness to drop points in CPU contour processing
• Fixed erroneous tab match in CPU contouring
• Fixed GPU contour Y coordinate handling with inside-only mode
• Fixed trace-through backward compatibility
• Fixed order of operations bug with tabs and inner-only processing

Improvements

• Increased Bambu FTP timeout for more reliable connectivity
• Updated FlashForge Adventurer 5M printer profile
• Added support for exported formats for packed devices
• Reorganized help menu layout
• Added file type parsers as api.load
• Distinguished fit contents from resize operations
• Improved UI element visibility (hide until hovered)

Updates

• Updated to current Three.js and Manifold libraries

---

Full Changelog: 4.5.0...4.5.1

4.5.0

Release 4.5.0

Major Features

CAM Path Planning Refactor

• complete rewrite of CNC path routing engine for improved collision detection
• new "Area" operation combining roughing, outlining, and tracing capabilities
• enhanced ease-down functionality with better collision avoidance
• improved travel boundary calculations with hangover support between operations
• optimized path ordering using enhanced shadow calculations
• added depth-first pocket routing option

Taper Ball Tool Support

• full taper ball tool implementation for CNC operations
• accurate tool geometry rendering in indexed mode
• proper step-over calculations for tapered tools
• visualization improvements for taper ball tool paths

Camera System Enhancements

• on-the-fly switching between orthographic and perspective camera modes
• improved orthographic aspect ratio and zoom behavior
• preserve camera settings (zoom inversion, speed) when switching projections
• restore camera projection mode on workspace import
• fixed zoom-to-fit behavior in orthographic mode
• "Shift+F" hotkey for immediate zoom to workspace contents
• "F" hotkey for zoom to fit space

CAM Improvements

Area Operation

• new unified "Area" operation mode combining multiple operation types
• area clear with intelligent pocket detection
• area trace with inside/outside options
• area outline with wide cutout support
• surface operation with linear constraints and angle control
• track and re-apply minimum Z for area operations
• support for tabs in area operations

Roughing Enhancements

• new roughing flat passes option for better finishing
• omit outer pass when using clear stock option
• improved leave stock handling (XY and Z)
• fixed leave stock application to tool shadow travel boundaries
• optimize roughing by skipping when clear stock is set

Trace Improvements

• enable inside/outside trace for open polylines
• add trace through option for better outline/rough behavior
• fixed trace operation with offset none
• improved dogbone generation
• added wide cutout functionality for outlines

Contouring & Surfaces

• add grace factor for contouring tool step
• restore stock clip-to for contouring operations
• fixed CPU contour Z bottom enforcement
• expand outside contour by resolution pixel
• surface operation with linear output mode
• fixed surface slice visualization

Tabs

• merge overlapping tabs automatically
• tabs now respect travel boundaries
• ensure ease-down does not cut through tabs
• improved tab cutting with indexed rotations
• fixed tab re-creation after rotation
• fixed tab cuts with stock clip-to in roughing
• better tab offset calculations

Tool Shadow & Travel

• significant shadow computation speedup using grid-bucketed recursive union
• add leave stock to tool shadow travel boundaries
• improved travel boundary handling with no args
• add outside travel safeties to tool shadow
• fixed shadow for indexed parts
• fixed shadow coplanar with bottom Z
• handle deep travel between small polygons

Indexed/Rotary Operations

• add index angle to slices and pass to client
• add rotational interpolation for G-code parsing
• improved lathe preview with lerp and GPU rendering
• add lathe axis reset macro
• fixed stock bounds in indexed mode with fixed vs offset stock
• enable manifold indexed animation option

Drilling

• convert holes to instanced mesh for better performance
• improved hole selection and toggle functionality
• better circularity detection with dedup for high-density faces

G-code & Export

• tighter arc tolerances for more accurate output
• fixed arc output with rounded corners expert option
• add milling direction per operation
• improved arc parsing with rotational interpolation support

FDM Improvements

• add "solidify" feature to remove inner voids from models at slice time
• fixed support on-demand detection
• improved bridge detection and handling

Laser Improvements

• add stacking STL reconstruction option for multi-layer engraving

User Interface

Rendering & Visualization

• improved CAM render colors
• soften edge traces in light mode
• mute dark part outlines for better visibility
• improved path visualization for indexed operations
• fixed colors and layer-first shadow rendering

Settings & Configuration

• hide omit-through option for outline outside-only mode
• add input select post to allow device name updates
• improved mutex handling to prevent hiding options during legacy op import
• better handling of element configuration parameters

Workspace Management

• fixed safe moves between operations accounting for widget platform offset
• fixed multi-widget safe move between ops
• improved stock clipping for multiple models with offset centers
• fixed origin select with offset origin
• fixed first save behavior when moving between widgets

Performance Optimizations

• speed up shadow computation with grid-bucketed recursive union
• disable WASM for area offsets (use round joins for better CNC tool paths)
• improved polygon union operations
• optimized contour calculations
• better handling of empty slices to reduce processing

Bug Fixes

CAM Fixes

• fix Z bottom validation and error messages
• fix erroneous "Z bottom > Z top" error
• warn when Z bottom is below Z through
• fix trace tool shadow clone
• fix clamp min/max swap
• fix stock clear all functionality
• fixed pocket bottom for slab slicing
• fix recursive use of nested travel boundaries
• clamp single trace to Z top/bottom
• fix area trace early termination conflict with drape
• disable depth-first pocket with drape (incompatible)
• filter empty slices from drape artifacts
• fix offsetting open polys with array offsets
• skip raster when no paths produced

Rendering Fixes

• fix orthographic aspect ratio
• fix zoom behavior and minimum zoom distance
• fixed ball taper render in indexed mode
• improved tool geometry visualization

General Fixes

• fix new tool units bug
• prevent double registration of frame listener
• fix await/async in CAM prepare
• fix DEG2RAD typo in calculations
• fix slice bounds errors (convert to alerts)
• fixed bad reference to worker
• various NullPointerException fixes

Code Quality

• add comprehensive JSDoc documentation for geometry library (base, point, line, slope, bounds, paths)
• move healPolys into polygons util class and rename as "reconnect"
• add todo notes for future improvements
• code formatting and cleanup

Documentation

• add interface documentation for main Kiri:Moto UI
• add interface images and option descriptions
• add docs redirects
• update broken links
• grammar and formatting improvements
• update Docusaurus to 3.9

Build & Development

• use cross-env for reliable cross-platform environment variables
• change environment variable location for Windows build
• improve build workflow to skip when only docs changed
• fix formatting checks
• update raster-path package dependency
• bump version to 4.5.0

Onshape Integration

• hide install menu in Onshape context
• improved Onshape authentication handling

Bambu Lab Integration

• move Bambu initialization to load-done for better stability

Electron

• improved electron build process

Known Issues

• Some polygon union operations may require further optimization for very large models
• GPU contouring disabled for pocket operations pending further testing

4.4.1

Release Notes - v4.4.1

Bug Fixes

CNC/CAM

• Fixed contour y bounds swap
• Fixed tab cuts and stock clip to in roughing operations
• Fixed outline stock clipping with offset origin
• Fixed origin select with offset origin
• Fixed stock clipping for multiple models with offset centers
• Fixed multi-widget safe move between operations
• Fixed thru cuts with new up/over tabs paths

FDM

• Fixed FDM support on-demand detection
• Fixed asset append missing module root

Core

• Fixed bad reference to worker (#451)
• Added install pass-thru for root requests

Improvements

• Improved smoothing and pocket devmode visuals
• Changed electron build context detection
• Moved mods package dependencies to main package
• Moved Bambu initialization to load-done

Maintenance

• Removed beta tag
• Back ported cross-env dependency

Full Changelog: 4.4.0...4.4.1

4.4.0

Release 4.4.0

General

• add version numbering utility script
• split out help/info menu and language menus
• move install/uninstall/quit menu to center app menu
• add help menu visual callout
• improve language translation coverage
• improve build and serve workflow for alternate builds
• update service worker configuration
• add install/uninstall options in setup menu

CAM

• implement tab hopping - toolpath goes up and over tab instead of interrupting cut (fixes #207)
• add GPU accelerated contouring for faster operations
• add radial GPU raster support (experimental)
• add new register mode that marks bottom cutout tabs
• add curves-only support to GPU contour
• add zsafe and move to safe z at start of new operations
• fix 'safe' moves during operation changes to be moves, not cuts
• fix tolerance/resolution for GPU raster mesh calculations
• fix NullPointerException with tabs in contour
• improve merge/co-planar point handling
• add slice layer naming using operation notes (fixes #447)
• fix level step down units (fixes #446)

FDM

• document remain_time macro variable (refs #339)
• re-add base flow rate multiplier for belt mode (fixes #444)
• fix belt fan control ordering (fixes #438)
• exclude belt from bridge fan layer
• add centering feature for fill areas (fixes #448)

Mesh:Tool

• add STEP export capability
• add STEP import with face generation
• improve face generation with inner holes
• add mesh scripting tool and persistence
• add plane and plane.loft operations
• add global edge map and edge reuse for better topology
• add devel device export option

Electron

• clean up electron build process
• merge electron mod into core
• add service routes when available
• set proper content-type for appended code bodies

Dependencies

• update @gridspace/raster-path to latest version with GPU acceleration
• update @gridspace/app-server for proper fallthrough handling
• switch from npmjs.org to git repos for @GridSpace packages
• update WebGPU implementation

Bug Fixes

• fix Bambu Lab local URL and module load order
• fix progress reporting for raster operations
• fix GPU lathe progress and contour API usage
• fix tool offsets when using GPU acceleration
• fix indexed rotations epsilon value for accurate zflat calculation
• fix traceload debug option
• sanitize topo3 resolution to avoid GPU floating-point errors

4.3.4

Release 4.3.4

Lathe Mode

• Add lathe start/end offset option with improved large step precision
• Fix lathe thru stock depth calculation

FDM Improvements

• Add volumetric flow output caps for FDM printing
• Add file metadata to widget codec

CAM Enhancements

• Allow short moves to cut in roughing operations
• Refactor CAM indexed animations to show cut path only
• Fix custom operation naming

Bundler & Performance

• Add compression caching to bundler
• Add bundler load order priority with module bundling (--dryrun support)
• Add bundler debugging and command line compression
• Add bundler exclusions and make bundler more resilient to missing sources
• Exclude bundle from itself
• Add experimental boot system
• Fully host /kiri from /boot

Service Worker & Caching

• Add more service worker boot controls
• Add ability to force service worker cache update
• Handle base redirects when it's a cache hit
• Fix cache vs transparent mode

Bug Fixes

• Fix case where max feedrates are all 0
• Fix fan setting for empty bridge layers
• Fix rapid plunge in Z axis
• Handle redirect with query parameters

Parameter Changes

• Remove confusing/unused fill speed parameters
• Rename parameters for clarity
• Remove first layer line width and flow rate (will become range parameters in future flow rate refactor)
• Disable scarf by default

Pull Requests

• #436: Add filename widget codec support

Full Changelog: 4.3.3...4.3.4

4.3.3

Release 4.3.3

Bug Fixes

• UI: Fixed overflowing operations lists and popup positioning issues
• CAM: Fixed tab reference for mirror operation
• CAM: Added box area constraint for contour operations
• FDM: Updated minimum layer time to respect minimum output speed
• Core: Fixed legacy PNG library to work with ESM build
• Core: Fixed IndexedDB reload race condition

Improvements

• FDM: Lowered fan speed for bridge layers to improve print quality
• UI: Sorted FDM, CAM, and control property names for easier navigation
• Build: Added option to compress/uglify boot image
• Build: Improved boot/install URL handling using updated service worker
• Build: Removed grid:local and grid:host targets
• Build: Added npm i to mods at setup

Full Changelog: 4.3.2...4.3.3

4.3.2

Changelog

✨ New Features

• Add hole and perimeter offset compensation as expert settings (1cca293)
• Add FDM scarf seams and min layer time (79a227d)
• Add spiral layer start point option (ac956a3)
• Add slice bridge annotations to slow print (6bf1537)
• Add oname and oid params for macro conditions and substitutions (7660570)
• Add print remain time macro var (77b4cce)
• Add codec optional extended point data encoding (39cc3db)

🛠 Improvements

• Improve gap routing; add adaptive shell fallback on failure (f53d6da)
• Only apply new starting point on first move of new layer (6c26dd0)
• Reorder FDM menus; add solid fill sub-menu (bcadc9d)
• Move output layer menu items to layer menu; relabel for clarity (35b4827)
• Slow down shells on flat layers (92cfe7f)

🐛 Fixes

• Fix angle diff calc for basic thin wall merge test (8eaa0a3)
• Fix move extrusion with scarfz (5aa5456)
• Fix scarf/arc conflict and scarf Z on export (77b4cce)
• Fix helical operator mistake (90a9f21)
• Fix adding supports from underneath platform looking up (457c037)
• Fix extruders LANG API ref (cb0344f)
• Fix thin shell depth for identifying outside faces (6bf1537)
• Fixup for origin point finder for high res meshes (3a4aa46)
• Fixes #429: outline refresh and stock size issues (9138e21)
• Fixes #430: provide enclosing element height and aspect ratio (90c29d1)

🔬 Experimental / Tests

• Add test slicing poly pumping (rounding) (8e75ad7)
• Add basic thin wall handling and default to on (0349ea5)
• Mock up basic thin wall without medial axis (f8180fe)
• Extend approach (segment comparison with angles needed) (78d4d60)
• Filter unmodified subsegments used for proximity testing (55615e1)
• Revert new thin default until codec updated (f5d234d)
• Add TODO/note for single wall noodle and claim system (dfa2308)

🧹 Misc

• Code formatting (d976461)

4.3.1

What's Changed

• Thin-wall overhaul (thin3): direct medial-axis segments; single-wall on axis; new claim system; better nominal width; fixes for closed polys, retraction, cross/interp, chain marking/merging; higher thin resolution; shell extrusion multiplier; shell width stepping; output-ordering annotations.
• Shell / fill & output: move shell/fill overlap to shell menu; next-closest shell output ordering; micro-backlash option; repeat-last-point close; point reduction & min-area filtering; gaps & max-inset visualizations.
• Inset / trace pipeline: cleaner inset extrusion polys; alt/new segment generator; generalized trace_noodle; post-noodle subtraction fix; ray/line fix; intersect-offset over approx radius; micro offsetting; radii term cleanup.
• FDM / CAM fixes: infill offsetting; start-move on layer-up; helical bugfixes; #421 (non-extended-thru cuts with large step-down); #426 (camZBottom); #427 (min scale clamp).
• Build / IO: append base64js for prod; G-code import cleanup; taper tool deps; restore missing sliceAll.
• Meta: bump rev to 4.3.1; rename thin-wall implementations.

Full Changelog: 4.3.0...4.3.1

4.3.0

• CAM:
  • Relabeled roughing 'over' from 'facing' to 'roughing'
  • Compensate for cam origin offset on export/import
  • Fix cut direction for outline and trace outside
  • Fix drill NaN emit, up/over re-plunge speeds, and detected rapid plunge
  • Add inner first routing option for outline and rough
  • Fix trace follow winding direction
  • Relax drill circularity for lower poly
  • Fix tab cuts into rough clear top
  • Change dragknife start point for inner polys
  • Add CAM helical clockwise, reverse, and entry params
  • Add optional z step down to level op
  • Fix helical arc generation
  • Make bottom clear configurable
  • Fix threading detection in cam slicer
  • Add 3-way trace intersections to origin candidates
  • Add cam origin selector
  • Build out helical slicing
  • Fix pocket contour
  • Improve thru hole handling in roughing
• FDM:
  • Add early noodle visualization to thin3
  • Fix bug causing filament used value to not be displayed
• UI:
  • Fix tools/device import/export
  • Fix widget replace
  • Fix tool UI scaling issue
  • Fix language switching + auto reload
  • Minor widget ui edit fixes
  • Fix cam tools dialog
  • Fix workspace export
  • Improve sketch bounds and handles
  • Fix click to focus and lay flat
  • Preserve wireframe/line settings in clones
  • Change default wire view to edges and persist preference
  • Fix focus, bounding box calc, edge edit
  • Change select/drag behavior
• Core:
  • Major refactor to use ESM instead of legacy bespoke module system
  • Only compute line endpoints once
  • Update manifold dependency
  • Fix newSlopeFromAngle in cnc/slice
  • Fix layout and omit last flawed point on knife radii calcs
  • Implement chain simplification through reduction
  • Interpolate medial axis cross sections
  • Fix multi-widget bounding box accuracy
  • Fix mesh ordering bug
  • Create body isolation function
  • Use builtin angle diff method
  • Add configurable vertex tolerance
  • Allow app versions to be served with prefixes instead of cookies
  • Allow engine to override work/pool urls and control threading
  • Fix gerber module import
  • Fix 3mf import
  • Move src/kiri/* to src/kiri/core and src/kiri-* to src/kiri/* and updated all imports
  • Start undo/redo for mesh tools
• Build:
  • Simplify esbuild config
  • Bump threejs version, split webpack scripts
  • Rename packed kiri devices, clean up package.json scripts
  • Move webpack to bin
  • Use esbuild to package mesh
• Bug Fixes:
  • Fix missing imports
  • Fix op register import
  • Port bugfix from 4.2
  • Fix missing md5 import
  • Restore 'omit thru' to roughing
  • Fix jszip for production
  • Fix slice state, drill zmax, contour tool diam, point.a clone in move
  • Fix topo4 and linear lathe with workers
  • Fix nested trace elements when clearing (poly area bug), fix shadowZ poly union, fix hidden cam animate
  • Fix stl loader
  • Fix fdm threading
  • Fix gyroid
  • Fix electron builds
  • Fix history rewrite
  • Fix poly2polyemit logic bug
  • Fix some z-down bugs in arc generation
  • Fix drill selection
  • Fix cam 2d animation
  • Fix pocket
  • Fix sketches
  • Fix png import

4.2.3

Full Changelog: 4.2.2...4.2.3