Engineering Design Tools.
EsaMotion develops practical engineering software for makers, fabricators, vehicle builders, designers, and engineers. Start with FrameDesigner to create tubular frames and custom chassis, evaluate geometry and loads, and prepare fabrication data directly in your browser.
From reference geometry to fabrication data.
FrameDesigner combines interactive 3D frame design with fabrication-aware geometry, automatic joint calculations, bend data, notch visualization, measurements, and manufacturing output.
Work around imported 3D models
Load multiple STL, OBJ, GLTF, and GLB-style reference models. Position, rotate, scale, hide, and inspect them independently while the frame remains dimensionally separate.
Round, square & rectangular tube
Create members joint-to-joint, move and split tubes, add multi-bend geometry, apply symmetry, select standard or custom tube sizes, and control profile clocking.
Automatic notch calculation
Physical joints are discovered from geometry and recalculated as the structure changes, including miter, cope, terminal, multi-contact, straight-host, and compound bent-host conditions.
Tube-by-tube build specifications
Review stock length, chord length, fabrication order, bend sequence, bend CLR and angle, end-cut operations, developed length, and per-cut tolerance for each member.
Interactive fabrication preview
Inspect the selected tube in an orthographic 3D preview with neighboring members, raw-stock extensions, bend highlights, notch contours, and unfolded Notch 1 / Notch 2 views.
Export the design for the next step
Generate fabrication PDFs and export frame geometry through JSON, STL, OBJ, and STEP-related solid-CAD workflows, including straight and bent members with notch reconstruction.
Engineering tools for people who build.
Each ESA Motion application is focused on a real design or fabrication workflow. FrameDesigner starts with tubular frame design, and the platform will expand with more tools for mechanical design, calculation, simulation, and automation.
Built for real tubular-frame projects.
FrameDesigner is focused on the workflows that matter when a design eventually has to be cut, bent, notched, welded, and assembled.
Custom cars, race cars & replicas
Lay out a tubular space frame around reference bodywork, drivetrain, suspension, occupants, and other packaging constraints while keeping dimensions explicit.
Roll cages, buggies & off-road frames
Plan tube sizes, joints, bends, notch geometry, and fabrication order before material is cut, reducing trial-and-error during the build.
Structural simulation before welding
Apply loads and inspect deformation and structural behavior early in the design process so weak load paths can be found before fabrication.
Software for engineers, makers, and fabricators.
ESA Motion is developed by Esacode, LLC. The goal is straightforward: create modern engineering software that is fast to access, easy to understand, and useful from the first minute — especially for builders who need practical design and fabrication tools without heavyweight CAD workflows.