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Aluminium extrusion is one of those design tools that looks simple until you build the first frame. Then the questions start: where should the brackets go, how much clearance is needed, and which profile actually makes sense?
Start With the Load
Choose the extrusion profile from the loads and span, not just from what looks strong. Larger profiles can add stiffness but also increase cost and weight.
T-Slots Are the Real Advantage
T-slots make it possible to attach brackets, panels, sensors and accessories without drilling every hole. Keep the slot orientation consistent where possible.
Design for Assembly
Think about how the frame will be assembled with real tools. A beautiful CAD model can still be impossible to tighten if a fastener is trapped behind another member.
Joining Options
Common approaches include corner brackets, joining plates, T-nuts, end fasteners and custom connectors. Select the method based on load, appearance, adjustment and service requirements.
Practical Tip
Model the actual fasteners and access space early. It takes only a few minutes and can expose an assembly problem before fabrication begins.
Keep learning: Explore more practical engineering articles in the GetCADFile Design Guide.