ODOP:Spring

ODOP:Spring

SpringDesignSoftware
OwlCAD

OwlCAD

Spare Matter Corp
+
+

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About

More than a Spring Calculator. ODOP:Spring is a spring design application of the problem-independent Open Design Optimization Platform (ODOP) software. It finds solutions for demanding spring application requirements in mechanical engineering and machine design. Most coil spring calculators require users to manually input values – such as wire diameter, coil diameter, free length and number of coils – and then repeatedly re-analyze until an acceptable solution is reached. ODOP’s ability to invert formula relationships removes that guesswork. Spring design equations are backsolved to meet constraints placed on the problem variables. Need to identify the lightest-possible material weight? Ensure a long spring life and low risk of failure? Our helical coil spring design software can find the constrained extreme of any variable, whether independent or dependent.

About

OwlCAD is parametric 3D CAD that runs in your browser, built for designing parts to 3D print. It sits between beginner tools people outgrow and professional CAD that needs an install and a learning curve. Every dimension stays editable: change a value and the model rebuilds. Booleans are manifold by construction, clearance presets size press, slip and loose fits for FDM, and a printability check flags overhangs, thin walls and leaks before export. Includes constrained sketches, per-edge fillets and chamfers, patterns, sweep and loft, assemblies with mates and a bill of materials, and 30+ generators for gears, threads, enclosures, Gridfinity bins and hinges. Imports STL, 3MF, OBJ, STEP and OpenSCAD; exports STL, 3MF, OBJ, GLB, STEP, DXF and SVG. AI generation turns a prompt into an editable model or a sculpted mesh. Also available as a desktop app and an MCP server for AI agents. Nothing to install, no account needed to start.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Supported

Audience

People looking for free and open-source software that backsolves constrained design problems for helical coil springs

Audience

Makers, hobbyists and prosumers who 3D print functional parts (brackets, enclosures, adapters, printer upgrades, storage) and have outgrown beginner modeling tools. Small product design and prototyping teams that need print-ready parts without professional CAD licenses. K-12 schools and educators: classroom mode is free, with pseudonymous student accounts and teacher-only AI.

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Supported
Free Trial Supported

Pricing

$12.00/month
OwlCAD is free to use. The Free plan has no time limit and includes the full parametric editor, import and export in every supported format, the customizer, cloud projects with version history and sharing, and the printability tools. You keep full commercial rights to anything you design, on every plan.

Pro is $12 per month, or $120 per year (two months free). It adds AI generation across several models, Modify-with-AI, AI-assisted customizing, and MCP access for AI agents. Pro includes 20 AI credits a month, which reset monthly. Light parametric generations cost one credit, and detailed mesh models cost a few. One-time credit top-up packs never expire. Pro users can also bring their own AI provider key and generate without spending credits. Payments are handled by Stripe, and you can cancel anytime with no contract.

Classroom features for K-12 schools are free. Districts can add a pooled AI credit budget for teachers; contact OwlCAD for details.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

SpringDesignSoftware
Founded: 2018
United States
www.springdesignsoftware.org

Company Information

Spare Matter Corp
Founded: 2026
Canada
owlcad.com

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SpringCharts

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Categories

CAD Supported
Engineering Supported

Categories

CAD Supported

CAD Features

2 1/2-Axis Milling Not Supported
2D Drawing Not Supported
3-Axis Milling Not Supported
3D Modeling Not Supported
4-Axis Milling Not Supported
5-Axis Milling Not Supported
Civil Not Supported
Collaboration Not Supported
Database Connectivity Not Supported
Design Analysis Supported
Design Export Not Supported
Document Management Not Supported
Electrical Not Supported
Hole Making Not Supported
Mechanical Supported
Mechatronics Not Supported
Presentation Tools Not Supported
Simulate Cycles Not Supported
Spiral Output Not Supported
Structural Engineering Not Supported
Toolpath Simulation Not Supported
User Defined Cycles Not Supported

Engineering Features

2D Drawing Not Supported
3D Modeling Not Supported
Chemical Engineering Not Supported
Civil Engineering Not Supported
Collaboration Not Supported
Design Analysis Supported
Design Export Not Supported
Document Management Not Supported
Electrical Engineering Not Supported
Mechanical Engineering Supported
Mechatronics Not Supported
Presentation Tools Not Supported
Structural Engineering Not Supported

CAD Features

2 1/2-Axis Milling Not Supported
2D Drawing Not Supported
3-Axis Milling Not Supported
3D Modeling Supported
4-Axis Milling Not Supported
5-Axis Milling Not Supported
Civil Not Supported
Collaboration Supported
Database Connectivity Not Supported
Design Analysis Supported
Design Export Supported
Document Management Supported
Electrical Not Supported
Hole Making Not Supported
Mechanical Supported
Mechatronics Not Supported
Presentation Tools Not Supported
Simulate Cycles Not Supported
Spiral Output Not Supported
Structural Engineering Not Supported
Toolpath Simulation Not Supported
User Defined Cycles Not Supported

Integrations

Bambu Studio Not Supported
Claude Not Supported
Claude Code Not Supported
Claude Desktop Not Supported
Cursor Not Supported
DeepSeek Not Supported
Gemini Not Supported
Meshy Not Supported
OpenAI Not Supported
OpenRouter Not Supported
OpenRouter Model Fusion Not Supported
PrusaSlicer Not Supported
Tripo AI Not Supported
Ultimaker Cura Not Supported

Integrations

Bambu Studio Supported
Claude Supported
Claude Code Supported
Claude Desktop Supported
Cursor Supported
DeepSeek Supported
Gemini Supported
Meshy Supported
OpenAI Supported
OpenRouter Supported
OpenRouter Model Fusion Supported
PrusaSlicer Supported
Tripo AI Supported
Ultimaker Cura Supported
Claim ODOP:Spring and update features and information
Claim ODOP:Spring and update features and information
Claim OwlCAD and update features and information
Claim OwlCAD and update features and information