Word of Mouth Trading & Detailing

Skip Trailer
2.7 x 1.6m

  • Client: Voldeo Trailers
  • Year: 2023
  • Role: Trailer Designs
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Project Description


Scope of Work and Details

Word of Mouth was commissioned to fully draught a heavy duty skip trailer (2.7 m x 1.6m) for Voldeo Trailers in Silverton. Our scope included:
  • Defining a parametric 3D CAD model of the 1.52m³ bin and twin axle chassis

  • Detailing all structural members, hydraulic tilt mounts and lashing points

  • Producing comprehensive 2D fabrication drawings and DXF exports for CNC profiling

  • Compiling a full Bill of Materials with SABS compliant material specifications and tolerance checks

  • Integrating Inventor iLogic rules to automate hole patterns and weld prep features

  • Coordinating welding sequences and shop assembly guidelines for seamless fabrication

A skip trailer is a specialized heavy duty tow behind unit designed to carry open top bins (skips) loaded with demolition debris, landscaping waste or recyclable materials. For this 2.7m x 1.6m design, we started by defining the bin geometry in Autodesk Inventor: configuring a 1.52m³ payload volume, tapered sidewalls for easy discharge and a reinforced lip for crane or winch attachment. Once the bin sub assembly was complete, we modeled the twin axle chassis frame around SABS rated steel profiles, integrating pivot plates and hydraulic mounts to allow tilting and precise bin engagement.

With the core structure in place, we added secondary elements cross members, mudguards, access ladders and lashing points using Inventor’s adaptive components so that any dimensional change cascaded automatically. iLogic rules handled repetitive features like hole patterns, weld prep chamfers and bracket placements, ensuring consistency across dozens of identical mounts. After validating clearances and load paths with Inventor’s built in simulation tools, we exported critical geometry to AutoCAD to detail foundation plates, axle mount interfaces and hydraulic piping supports.

Finally, we generated a full suite of 2D fabrication drawings: exploded view callouts for hinge assemblies, section cuts of the bin to frame interface, and CNC ready DXF exports for laser profiling. Each drawing carried material specs, tolerance notes and weld sequence recommendations so the workshop could move directly from file to finished trailer without guesswork. The result is a turnkey skip trailer that balances strength, ease of use and rapid deployment for Voldeo Trailer’s toughest hauling jobs.

Shop Drawing Gallery


Our precision shop drawings bring designs to life with crisp linework, detailed dimensions and clear callouts. These fabrication ready plans ensure every cut, weld and assembly step is executed flawlessly, setting the standard for quality and consistency on the workshop floor.

Project Render Gallery


Experience the design in full color and context through our high quality renders. From realistic materials and lighting to true to scale perspectives, these visuals bring every detail of the project to life helping you see exactly how the final build will look and feel.
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