v0.1LATEST
- Constraint-based 2D sketcher driven by a Newton-Raphson solver
- Seventy-two geometric and dimensional constraint types
- Degree-of-freedom analysis that drives entity colour and the DOF overlay
2D CAD sketching software for engineers who build with precision.
A focused, parametric 2D sketcher built around constraints, precision, and clear feedback.
Why constraints
Constraint-based CAD without the guesswork.
See what is still loose
The degree-of-freedom count tells you how much freedom is left, and unconstrained geometry stays cyan until you pin it down.
Find constraint conflicts
When constraints clash, the panel marks the specific ones that are redundant instead of failing the whole solve.
Diagnose broken sketches
Validate Sketch names duplicate lines, overlaps and open contours before they break a downstream feature — and offers the repair.
Build with precision
Dimensions drive the geometry. Change a value and everything constrained to it follows, exactly as you defined it.
Capabilities
Everything the sketch needs. Nothing it doesn’t.
01
See what is still loose.
The solver re-runs after every edit and reports what the sketch has left to pin down. Under-constrained gives you the count. Over-constrained tells you how many constraints are redundant. A genuine conflict is named as its own state rather than hidden inside a failed solve. One readout, four answers — so a sketch that will not resolve tells you which kind of wrong it is.
02
When constraints conflict, know why.
A contradiction does not fail the whole solve. Pingendum separates a genuine conflict — a new constraint the sketch cannot satisfy at any size — from mere redundancy, names the one constraint at fault, and offers to delete precisely that one. You remove the constraint you meant to remove, not the one you guessed at.
03
Diagnose the sketch, not just the error.
Validate Sketch names every problem it finds — redundant constraints, duplicate lines, entities that overlap and cannot be trimmed until repaired — and offers the repair alongside it.
Toolset
What you can draw with today.
Geometry
Draw the profile.
- Line
- Polyline
- Centreline
- Rectangle
- Oriented rectangle
- Centered rectangle
- Parallelogram
- Circle
- Three-point circle
- Tri-tangent circle
- Ellipse
- Arc — centre, three-point, sweep
- Tangent arc
- Polygon
- Straight, centrepoint & arc slots
- Control-point spline
- Interpolating spline
- Point
- Intersection point
- Text
Modify
Change what you have drawn.
- Trim
- Power trim
- Trim away inside / outside
- Extend
- Extend to element
- Break
- Corner (trim)
- Corner (fillet)
- Chamfer
- Offset
- Mirror
- Symmetry
- Translate
- Rotate
- Scale
- Project geometry
Geometric constraints
Define how geometry relates.
- Coincident
- Horizontal
- Vertical
- Parallel
- Perpendicular
- Tangent
- Equal
- Concentric
- Collinear
- Point on line
- Midpoint
- Symmetric
- Fix / unfix
Dimensions & feedback
Give it numbers, and read what is left.
- Distance
- Horizontal distance
- Vertical distance
- Length
- Radius
- Diameter
- Angle
- Reference (driven) dimensions
- Degree-of-freedom readout
- Constraint state pills — OK, redundant, conflicting
- Sketch validation
- Construction geometry
- Grid snap & axis capture
How it behaves
SOLVERLive constraint inference
Horizontal and vertical constraints are applied as you draw, so you stay in flow instead of stopping to define geometry after the fact.
INPUTGrid snap & axis capture
Snap to an adjustable grid increment with axis capture while drawing. Clicking near existing geometry picks the point under the cursor, so endpoints and centres connect cleanly.
INPUTChain select & heads-up input
Select connected geometry in one action and type dimension values directly on the canvas.
TOOLSReference geometry
Add driven reference dimensions that measure without over-constraining the sketch, and construction geometry that guides without becoming part of the profile.
Scope
A focused first release.
Pingendum is launching with the 2D sketching environment. It is the part that is finished, so it is the part being released.
Available in the 2D sketcher
2D parametric sketchingIn this release
Geometry, the full constraint toolkit, degree-of-freedom feedback, diagnostics, grid snap, drafting aids and reference dimensions.
Not in this release
Solid modellingIn development
Pad, pocket, revolve, fillet, chamfer, shell and patterns are already built. They are not what this first release is for, and will arrive in a later build with the documentation that covers them.
File formatsDXF and PDF
Projects save to Pingendum’s own versioned format. Drawings import and export as DXF — R12 or R2000, geometry on layer 0 and construction geometry on its own layer — though dimensions and constraints are not carried across, because DXF has no way to represent them. Drawings also plot to a PDF sheet or a printer at a real scale, with an ISO title block and hidden, frozen and non-plot layers left off the paper. There is no DWG, STEP or STL export.
Simulation and renderingNot scheduled
On the long-term roadmap only. Neither is promised for a date, and neither is being sold to you today.
Work beyond the sketcher is tracked in the changelog as it lands, and the documentation covers the sketcher chapter by chapter.
Early access
Be one of the first to use Pingendum.
The 2D sketcher is being prepared for its first release. Join the waitlist to be notified when early access opens.
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Shipping continuously.
Pingendum is under active development ahead of its 2D release. Every update is logged — no silent changes.