GearCalculators.com
Design-Manufacture-Inspect
Gear Shop ERP
GearCalculators.com is the next step: a faster, modern platform where you can save your machines, change gears, hobs, master gears, and pins—and reuse that data for quoting, setup sheets, and tooling decisions. The generators include accurate trochoid geometry for low–tooth-count gears and profile-shift capability, enabling stronger, more efficient pinion designs. DXF exports let you create gear geometry that isn’t available in standard CAD libraries, including SolidWorks and Fusion 360. When the mission matters, this is where you can make real gains in performance.
Built from years of real-world feedback, GearCalculators.com is evolving into a manufacturing ERP for gear shops, while the original calculators remain free on EvolventDesign.com. Optional subscriptions unlock project saving, text-based data import/export, and other advanced features—at current pricing through 2025.
Design, tools, tolerances, and inspection all come together in our new Digital Traveler—no more paper in the shop.
2025 has been a busy year of progress and upgrades. Same price. More features.
Pricing updates are planned for 2026. Lock in current rates today.
GENERATING GEARS
Interactive gear generation so you can see the 3D results of your design. Change profile shift and various other parameters to improve your product with more strength and less friction.
PROJECT STORAGE AND RETRIEVAL
Save your projects, gears, machines, speeds and feeds and other vital information. Output and report your results for process documentation. Export and import data using a CSV template.
SEARCH
Yes, search and find your hobs. Gear shops with extensive tooling need to keep it organized. But then you need to find the physical hob digitally just as easily as the physical one.
Inventory information for expensive tooling is a valuable asset. Take care of it.
Design-Manufacture-Inspect
meets
Storage-Search-Connect
An ERP that speaks "Gear Language"
to give you an intelligent process
Storage and Retrieval of Designs
As you design new gears, or input data for job shop work, the data now has a centralized home. At your fingertips and just where you need it.
Search your Machines, Hobs, Pins and Spheres
You may have a great spreadsheet, but are they all linked together and can you search them with ease.
The tooling in your shop is your manufacturing asset and it now has a place to exist digitally.
Connect all your Assets to make a Gear Traveler
ISO 9001 and Quality shops know that it takes a big team to get it done. A plug-and-play team that can communicate with reliable digital tools.
As individual parts, gears have their own language. Translate the spectrum of plans that come into your shop, and turn them into standardized travelers.
After initial setup, the QM and or machinists can see the data on any tablet or IOS device and enter their inspection results.