Fusion 360 add-inPro tier
Steel Frame & Weldments Pro add-in icon

Steel Frame & Weldments ProTube Folding, 3D Weld Beads & Frame Check for Autodesk Fusion (Fusion 360)

Fold several corners from one tube. Model the welds. Check the frame. Turn your Fusion design into notched tube blanks, weld schedules, cost estimates and cutting files for the shop.

US$89/year or US$12/month, per user · free 3-day trial on your own model.

7-day Pro trial

Already using Steel Frame & Weldments?

With an active Standard license, try V-Notch & Fold, weld modelling and Frame Check on your own frame for 7 days. See how Pro helps with your work before deciding to buy.

Windows and macOS builds

Download Pro
Current limitations & planned improvements

V-notch, fold & unfold

Make a connected run from one tube, with folds in different directions, tab/slot seams and a straight STEP export.

One square tube folded at three corners in different planes, with tab and slot seams, in Autodesk Fusion
Pro only · per-corner settings · native Fusion model
Explore V-Notch & Fold →

Weld modelling

Build the beads, review the seams, and produce a weld schedule with quantities and cost estimates.

Close-up of real Rippled weld bead geometry with a Textured surface on a Fusion tube joint
Rippled bead geometry · Textured surface · native Fusion model
Explore weld modelling →

Frame forces, stress & deflection

Apply loads and supports, compare load cases and design versions, and save the beam analysis with its assumptions.

Frame Check in Fusion showing the loaded frame, coloured member results and support markers
Frame Check & Frame Studies · load cases · member results and reports
Explore Frame Check →

01 / V-Notch & Fold

One tube. Several corners. Ready to unfold.

Design square and rectangular tube frames in Fusion, then turn a connected run of members into one notched, folded part. Keep the outside wall as a hinge, add optional tabs and slots at the weld seams, and export the straight tube for cutting. Fewer separate pieces to position when assembling table legs, furniture frames, guards and brackets.

Fold in more than one direction

Native Fusion model of one square tube with three folds in different planes and semicircular tab and slot seams
Actual Fusion model: four straight sections, three folds in different planes, with tab/slot seams and corner reliefs.

Unfold the same part for fabrication

The same tube unfolded in Fusion with three V-notches on different walls, retained hinge strips and matching tabs and slots
The same tube laid straight: V-notches open on different walls. Export its solid geometry as STEP or to a new Fusion design.

Set each corner for the job

Choose outside bend radius, K-factor, weld gap, tab diameter and relief. Apply common settings, then use Corner overrides only where a bend needs something different.

Edit without starting over

Edit Fold loads the saved members, settings and corner overrides. Add members to the run or change a setting. Supported Edit Frame changes also rebuild the folded part.

Count and cut it as one piece

Cutting List records one folded part with its developed length and notch table. PDF/CSV reports include fold data, and Stock Optimizer uses the straight blank length.

From Frame to a notched tube

  1. Create the members with Frame, using Miter corners and zero Frame weld gap.
  2. Open Modify > V-Notch & Fold, select one connected run and preview its folds.
  3. Set the gaps and corner details, then use Cutting List > Export tubes for STEP files or a new Fusion design.

Choose a foldable run

  • ✓Square or rectangular tubes must share section dimensions, wall thickness and material. Supported angle and channel sections need their leg or web on the outside of each bend.
  • ✓A closed frame keeps one closing weld joint; its other corners become folds. Unsupported chains and settings show a reason in the dialog.

Match the K-factor to a test bend. STEP provides geometry for your shop's CAM workflow; export again after editing the frame or fold.

02 / Weld modelling & estimating

From the joint to the weld quote

Find the seams, model the beads, review the quantities and price the work. Explore each part of the welding workflow below.

Follow the joint through the corner

Improved fillets follow supported rounded corners and angled contacts into straight runs. Brace-to-rail side seams previously missed are included, and supported planar gusset tips with different fillet sections now connect.

Textured Rippled fillet beads connecting straight runs around rounded hollow-section corners in Fusion
Rounded member corners: straight-to-curved transitions with Rippled geometry and Textured surfaces.
Connected Rippled Textured weld along an angled brace-to-rail seam and around its return at the upright
Angled brace: the restored side seam connects into the rail-side bead and supported return at the upright.

Preview seams before building. Missing support, holes or ambiguous contacts can still leave separate ends or counted-only intervals. Surface boundaries can remain between connected bead sections; curved quantities remain estimates.

Full weld workflow, settings and supported geometry →

03 / Frame Check

Steel frame analysis in Fusion 360: beam stress and deflection

Loads, supports, member forces, stress and deflection in one Fusion workflow. Save load cases, compare and combine them in Frame Studies, and keep reports that explain the assumptions.

Inspect before you calculate

Results update automatically as you change loads, supports or material. Turn on Model setup to inspect the exact analytical axes, shared nodes and projected load/support positions without solving. Turn it off to return to results; its display options are hidden until needed.

Frame Check showing cyan axes, orange shared nodes, grey subdivision nodes and local section axes through the Fusion model
Axes and nodes: cyan beam axes, orange shared nodes, optional grey subdivisions and local x/y/z axes.
Frame Check model setup showing magenta applied loads at analytical nodes and blue automatic supports
Loads and supports: magenta loads, blue supports. This case includes self-weight; labels use N and N/mm.

Toggle loads, supports, local axes and labels independently; a visual crossing alone does not create a connection or verify the weld.

Full Frame Check inputs, assumptions and limits →

See it in action

6 walkthroughs in Fusion

Start with V-Notch & Fold: turn frame members into a folded tube and export its notched straight blank. Then explore weld modelling, quantities and cost estimates, or check loads and compare design versions with Frame Check and Frame Studies.

V-Notch & Fold Square Tubes in Fusion 360 | Weldments Pro
Create a frame, add V-notched folds with tab/slot seams, and export the unfolded tube for fabrication.
Watch on YouTube →
New in 2.5: Frame Check & Frame Studies
Loads and supports, colour-coded results, saved load cases, factored combinations, design versions and the Frame Studies comparison PDF.
Watch on YouTube →
New in 2.4: Square, V & Bevel groove welds
Prepared groove welds on plates and around round or rectangular tubes, automatic groove measurement, Textured and Rippled finishes, and improved fillet transitions.
Watch on YouTube →
Weld beads, weld lists & cost estimates
Seam detection, Rippled and Textured beads, weld quantities, fabrication reports, stock optimization and DXF exports.
Watch on YouTube →
Weld any plate: beads, length, mass & cost
Weld beads on plates you modelled yourself, welded where they sit in the assembly, then the weld list and Weld Cost numbers.
Watch on YouTube →
Frame Check: loads, stress & deflection
Combine the main payload, horizontal forces, face loads and point loads. Review member results and export the Frame Check report.
Watch on YouTube →

Also in Pro / Fabrication tools

Prepare the parts for the shop

Locate the parts, order the stock and export the cutting files. These tools support the welding and frame workflows in the same project.

Mount and locate the parts before welding

  • ✓Base plates fit member ends: size by overhang or explicit dimensions, set thickness and chamfered/rounded corners. Choose rectangular or PCD bolt patterns, slots and an optional centre hole.
  • ✓Member-to-member, member-to-base-plate and gusset-to-member Tab/Slot creates matching locating cuts. Ambiguous contacts and insufficient receiving material are refused.
  • ✓For your own solid plates, Plate Tab / Slot makes tab rows by count or maximum spacing, with fit clearance and dogbone relief, across components.
  • ✓Saved settings reapply after supported frame/plate edits. Unrestored joints remain available for review. Joined plates appear in DXF exports without picking them again.
Tube and base plate separated to show bolt holes, chamfered corners and matching locating slot
Base Plate with its member separated to reveal the locating cut and bolt pattern.
See gusset and hand-modelled plate joints
Gusset tab and matching member slot shown separated
Gusset to member.
Hand-modelled tray plates separated to reveal tabs and matching slots
Your own plates, joined with Plate Tab / Slot.

The Pro commands on the Fusion ribbon

Base Plate and Weld Bead sit in the Create panel next to End Cap; Plate Tab / Slot and V-Notch & Fold are in the Modify panel; Stock Optimizer, Plates to DXF, Weld Cost, Frame Check and Frame Studies follow Cutting List in the Fabricate panel.

V-Notch & Fold tool illustration

V-Notch & Fold

Make one tube from a connected run: multi-direction folds, tab/slot seams, per-corner settings and unfolded STEP or Fusion export.

Weld Bead tool illustration

Weld Bead

Fillets and Square/V/Bevel grooves, automatic groove measurement and weld schedules. Smooth, Textured and Rippled finishes.

Frame Check tool illustration

Frame Check

Inspect the model, calculate forces, stress and deflection, save load cases and design versions, export reports.

Frame Studies tool illustration

Frame Studies

Show, compare and combine saved load cases, compare design versions and export the comparison to PDF or CSV.

Weld Cost tool illustration

Weld Cost

Consumable, arc and labour time, cost per weld with process presets.

Base Plate tool illustration

Base Plate

Foot and mounting plates with rectangular or PCD bolt patterns.

Stock Optimizer tool illustration

Stock Optimizer

Cut list nested onto stock bars; bars to order, waste, cut plan.

Plate Tab / Slot tool illustration

Plate Tab / Slot

Rows of tabs and matching slots between any plates, including the ones you modelled yourself.

Plates to DXF tool illustration

Plates to DXF

Flat DXF per plate type, your own plates included, with a quantity index and nesting onto stock sheets.

Cutting List (Pro) tool illustration

Cutting List (Pro)

Weld schedule, stock plan pages, mass, surface, part descriptions, per-frame scope and coating cost — plates you modelled yourself included.

Real output samples

Open the files you would hand to the shop

Inspect actual outputs from the Fusion sample frame before buying. See how parts, welds, bar plans and calculation assumptions are presented, and try the fabrication files in your own software. No sign-in is needed.

The downloadable report sample contains 25 parts: 17 members, four base plates and four gussets, with 42 weld groups. Its Frame Check case uses 500 kg distributed across six top rails, self-weight, Steel S235, four fixed feet and an L/250 deflection limit. These are the sample assumptions, ready to inspect in the report.

Thumbnail of the sample Pro fabrication PDF, showing overview and cutting list

Fabrication pack

Eight pages: overview, numbered parts, cutting list, weld schedule and stock plans. Check the full-size tables and quantity notes.

Open fabrication PDF
Thumbnail of the sample Frame Check report with model, results and assumptions

Frame Check report

Eight pages documenting the load case, supports, member results and screening notes. The report records what was calculated.

Open Frame Check PDF
Sample stock plan PDF page showing the numbered pieces placed along each purchased bar

Shop files

Seven individual plate DXFs, a plate index, two nested-sheet DXFs and their layout PDF, plus stock and weld-cost CSVs. The package identifies its contents and units.

Download shop files ZIP

Need the workflow behind these outputs? Read the Pro user guide.

Standard or Pro

What Pro adds to Standard

Quick pick: need V-Notch & Fold, weld beads, weld cost, Frame Check, base plates, a stock-bar cut plan or plate nesting? That is Pro. Just modelling frames, plates, cut lists and plate DXFs? Standard is the complete tool for that job.

CapabilityStandardPro
Price per userUS$49/yr
or US$8/mo
US$89/yr
or US$12/mo
Free trial3 days3 days, or 7 with an active Standard license
Frame, Member, miter / butt / cope, corner override, weld gapIncludedIncluded
Gusset, End Cap, Tab / Slot joints, Notch, Miter, Trim / ExtendIncludedIncluded
Plate Tab / Slot: tabs and slots between any plates, including your ownIncludedIncluded
845 sizes in 43 families, including 229 Indian (IS) sizes: SHS, RHS, CHS, ISA, ISMC, ISMB, NPB and WPB; custom profiles and CSV importIncludedIncluded
Cutting List: table, CSV, PDF cut sheets with balloonsIncludedIncluded
V-Notch & Fold: one tube, multi-direction folds, tab/slot and per-corner settings—Included
Unfolded tube STEP / Fusion export, developed lengths and notch tables—Included
Mass and surface area per piece (paint / galvanizing)—Included
Weld Bead: beads, weld schedule, textured / rippled options, on any bodies in the assembly—Included
Frame Check: member forces, beam stress / deflection and reports—Included
Frame Studies: compare load cases, combinations and design versions—Included
Weld Cost estimate—Included
Base Plate with bolt patterns—Included
Member-to-base-plate and gusset-to-member Tab/Slot—Included
Stock Optimizer (1D bar nesting) + stock plan pages—Included
Plates to DXF + index, including plates you modelled yourselfIncludedIncluded
2D plate nesting onto stock sheets (layout PDF + DXF per sheet)—Included
Weld symbols on the WELD LIST + weld tags on the overview—Included
Drawing-ready part descriptions (Parts List)—Included
AI control (MCP) of the add-inIncludedIncluded

License

Simple subscription, Autodesk sign-in, free Pro trial

Pro costs US$12/month or US$89/year per user. App Store purchases unlock through Autodesk Entitlement when you sign in to Fusion. Activation codes are available for team installs and direct licensing.

Try Pro before you commit

Try Pro free for 3 days, or 7 days with an active Standard license, starting with your first use of Pro in Fusion. The longer trial uses your original start date, including trials already started. Downloading or reinstalling does not start or reset the trial.

  • ✓Download Pro with your Autodesk purchase email and run it with the same Autodesk account. Your existing Standard frames, plates and joints open with the Pro tools active — nothing to rebuild.
  • ✓Need longer to evaluate it? Use a single month (US$12) on a real job, then continue with Pro or return to Standard. After the trial, Pro commands require an active Pro license for editing and regeneration.

Steel Frame & Weldments Pro

Windows and macOS. Built for fabricators who quote, cut and weld what they model — machine frames, tables, guards, carts, trailers, structures.

Latest build

The same add-in runs on Windows and macOS. Pick the machine you will install on.

Checking…

Available with Pro access or an active Standard license. We check your email against license records and log downloads. See our privacy policy.

Install, update or uninstall an add-in →

Adding the ZIP by hand? In Scripts and Add-Ins › +, select the folder that contains the .manifest file, not the file: on Windows, the Contents folder inside the .bundle.

Updating or switching versions? Clear Run on Startup for the old add-in, Stop it and close Fusion before replacing files. Restart Fusion before you Run the new version.

Common questions

Can I V-notch and fold square or rectangular tubes in Fusion 360?

Yes. V-Notch & Fold in Weldments Pro turns a connected run of mitred Frame or Member parts into one folded part. Bends can turn in different planes. It retains the outside hinge wall and offers weld gaps, semicircular tabs and slots, and corner reliefs. All members must share section dimensions, wall thickness and material. Standard does not include this command.

Can each fold have different settings, and can I edit it later?

Yes. Use Corner overrides for single bends and Edit Fold to change the saved run later; invalid folds are reported and must be fixed before fabrication export.

What can I export from a folded tube?

Export tubes writes the notched straight solid to STEP or a new Fusion design, and Cutting List counts the run as one part with its developed length and notch table. Existing holes, slots and end cuts on the members travel with the unfolded geometry.

Does Weldments Pro run on macOS?

Yes. Every release is published as a Windows bundle and a separate macOS bundle with identical commands. Pick your platform in the download section on this page; a licence covers both.

How should I use the deposited-metal figures?

Use the schedule to estimate consumables and welding time. It combines measured seam lengths with section areas and estimating allowances. A ~ prefix marks approximate quantities, with the basis recorded in the export. Curved or unresolved sections can use local-section or nominal-section estimates. These values do not establish weld strength or a qualified welding procedure.

Does every detected seam get a solid bead?

Supported joints produce solid beads. Some curved or oblique intervals remain counted-only when a reliable solid cannot be built; the schedule identifies the length without a bead. Smooth or Textured controls appearance; optional Rippled adds physical surface detail while retaining the same nominal schedule quantities. Version 2.4.0 improves supported rounded corners, oblique contacts and brace-to-rail seams. Review unusual joints in the seam preview before creating them.

What is new in version 2.6.3?

Version 2.6.3 adds custom names for Frame groups and fixes gusset placement on profile-to-plate joints, including supports inside assemblies. It also fixes gussets and linear patterns disappearing after editing frame profiles. Recent releases added V-Notch & Fold with straight-tube export, 229 Indian Standard profile sizes, illustrated tooltips and improved end-member alignment in 3D frames. See the changelog for the changes in each version and Latest build for platform availability.

Which parts can use Tab/Slot?

Use Weldments members for member-to-member and member-to-base-plate joints, or a planar constant-thickness Weldments gusset for gusset-to-member joints. Pick the tab body, then the receiving body. The command finds the contact and refuses ambiguous contacts, openings or insufficient material. For plates you modelled yourself or imported, use Plate Tab / Slot: it takes any solid bodies, in any component, and adds a row of tabs along every edge that rests flat on the receiving part.

Can Weld Bead weld parts I modelled myself, or parts inside an assembly?

Yes. With Scope set to Selected bodies, pick any solid bodies: Weldments parts or plates you modelled yourself, in any component. Parts inside moved, rotated or nested components are welded where they sit in the assembly. When a component is placed several times, pick the bodies of the instance to weld; each instance gets its own weld. Beads are created at the top level of the design, so run Weld Bead again if you move a part afterwards. Entire design keeps to the parts the add-in built.

Can I use my own stock lengths and shop rates?

Yes. Enter the bar lengths you buy, saw kerf, end trim and minimum reusable offcut. Weld Cost also lets you edit process efficiency, deposition rate, operating factor, labour, consumable and gas rates. Settings are remembered. Waste and cost depend on your job and these inputs.

What does Frame Check calculate?

It calculates member forces, moments, stress and deflection for an idealised linear-static 3D beam model using the loads, supports, sections and materials you choose. Compression requires a separate buckling review; it is not a design-code check.

Does Weldments Pro add weld symbols to my drawings?

It prints weld symbols on the WELD LIST pages and weld tags on the model overview of its fabrication PDF. It does not place weld symbols in a Fusion Drawing; use Fusion’s own drawing symbols there.

What is Frame Studies?

Frame Studies (Fabricate panel) works with the load cases you save in Frame Check. It shows any case on the current frame, compares all cases side by side, combines cases with your own signed factors (for example 1.35D + 1.5L) and compares saved design versions (Rev A, Rev B) for mass, peak utilisation and largest displacement. Comparisons export to PDF or CSV with support reactions, an equilibrium check and uplift. Factors are user-defined, not a design-code load combination, and the results use the same beam model as Frame Check.

Can my cutting shop use the DXFs?

Plate exports use R12 DXF in millimetres or inches with lines, circles and arcs, plus a CSV quantity index. Download the sample files and check them in your shop software. Flat plates you modelled yourself are exported and nested together with the add-in plates. Set material, thickness, spacing and stock sheet size for your job before exporting a nested layout.

Do I need to rebuild a frame made in Standard?

Pro recognises frames and supported parts made by Standard. Open a copy of an existing project and try the Pro tools for 3 days, or 7 days with an active Standard license. Standard can open the model, but its license does not unlock Pro commands after the Pro trial ends.

How does the 7-day Pro trial for Standard customers work?

Download Pro on this page with your Autodesk purchase email and run it with the same Autodesk account; the 7 days count from your first use of Pro.

Do I need an extra drawing add-in?

No. Member descriptions are ordinary Fusion component properties. Enable the Description column in the Fusion drawing Parts List to show profile, length and end cuts, and use the normal drawing balloons.

Feedback

Tell me what the shop still does by hand

Most of Pro started as somebody describing a step they still did outside Fusion. Bugs, missing profiles, a report the shop wants — send it with the email your Fusion account uses.

Already sent feedback?

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Up to 3 screenshots (5 MB each), one Fusion file (.f3d or .f3z) and one short video (50 MB each). They are used only to look into this report and are deleted after 90 days.

Reports are open to licence holders and trial users. support@vanthanbk.com

Development roadmap

Known limitations & next improvements

The planned work below has no confirmed release date.

V-Notch & Fold: current scope

Straight, end-to-end members with compatible mitres only. Curved members, round tubes, solid bars, I/H/T and custom sections are unsupported. Branches and disconnected selections cannot form one folded run.

Radius, gap, relief and tab limits depend on the section and space between bends. Bend allowance uses your K-factor; material springback and machine toolpaths are not simulated.

Read the fold workflow and parameter limits →

Weld modelling

Current welding limitations

  • Missing support, holes, ambiguous multi-part contacts and unsupported freeform surfaces can leave separate bead ends or seam intervals without a solid. Supported rounded corners, oblique fillets and planar gusset transitions are included since 2.4.0; since 2.5.0 a weld around a ring, disc, flange or tube end is built as one bead per run.
  • Those spans can still appear in the weld schedule. Approximate mass and cost carry a ~; read the quantity basis in the export.
  • Small corner radii: where a section corner radius is not larger than the weld leg (for example RHS 30x20x1.5 with a 4 mm weld), that corner gets no solid bead; its length and metal are still counted in the schedule.
  • Prepared grooves: Square, symmetric V and single Bevel require an existing matching preparation. Automatic measurement does not cut the parts or verify penetration or weld strength. Oval/freeform and oblique-cut tube rims, mismatched corner radii and intermittent grooves are unsupported.

Rebuild to apply the improvements

Rebuild beads created with older versions to use the improved seam detection, transitions and one-piece curved runs; existing beads change only when you run Weld Bead again. After moving a welded part or changing a groove, reselect the joint and rebuild it at its new position.

See the weld close-ups and workflows →

Planned next

  1. More curved and oblique transitions

    Extend the existing rounded-corner and oblique-seam support to freeform surfaces, narrow supports and complex multi-part corners, with checks for reliable bead geometry.

  2. Extend prepared groove workflows

    Build on straight and round/rectangular tube-perimeter Square/V/Bevel workflows: evaluate other curved paths and preparation tools, with support checks before expanding coverage.

  3. Weld settings for each joint

    Choose weld type and size per joint within one frame workflow, with the settings carried into the weld schedule and cost estimate.

Send a joint example or feature request →

Frame Check

Use member forces, stress and deflection to compare supported frame designs under the loads you enter. Read the results with the assumptions below; a green member is not a complete structural approval.

Current analysis limitations

  • Idealised beam model. Linear-static straight beams, rigid member joints and small deflections. Local plate, gusset, weld and bolt behaviour is not analysed; neither are second-order effects.
  • Buckling is a separate review. Euler K = 1 is a reference only. Actual effective length, frame stability, local buckling and code compliance are not verified.
  • Custom profiles have limits. Rectangles, circles, circular tubes and supported sharp thin-wall RHS, I, U/C, equal-wall L and centred T outlines are recognised. Arbitrary, T-slot and V-slot outlines still stop the check because their torsional stiffness is not determined.
  • Torsion and offsets. Open-section torsion uses a thin-wall approximation. Shear-centre effects, restrained warping, eccentric member connections and transverse-shear stress/deformation are not modelled.
  • Load placement matters. Point loads project onto the member axis and act down or along a global axis, with their offset moment when Include offset moment is on. Face loads act over the part of the member each face covers. Custom supports also project onto member axes.
  • Deflection is checked per span. Parts held by one post or beam are checked as cantilevers. A part held through several members (stand-off stubs, two skids) is not recognised as one: check its largest displacement.
  • Cases use the current frame. Cases and combinations are recalculated on the current frame; design versions keep their saved results. Combination factors are yours: no design-code combinations are generated, and rebuilt members are not paired with deleted ones when versions are compared.
  • Model coverage. Curved members and members disconnected from all supports are reported as skipped. Moved, rotated and repeated component instances are analysed where they are placed; mirrored or scaled instances are rejected. Section rotation set in Weldments is supported.
Read the full Frame Check assumptions →

Planned next

  1. Planned
    Extend custom-section analysis

    Evaluate more complex and extrusion outlines with a verified torsion model before adding them to the solver. Current support covers the recognised section families described above.

Suggest a Frame Check workflow →

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