What Topology Optimisation Does Not Give You
Topology optimisation has something seductive about it: you specify the design space, the loads and the boundary conditions, and the software delivers an organic-looking structure that leaves material exactly where it has to carry load. The result looks impressive — and it is the most common source of disappointment when you do not know what it is and what it is not.
What the Optimisation Actually Delivers
A topology optimisation delivers a material distribution proposal. It shows where in the given design space material makes sense and where it can go, to save weight at the same function. That is valuable — but it is a proposal, not a finished part.
The typical result shapes are organic, branched, often not readily manufacturable. Ill-considered undercuts, delicate struts, geometries that no mill and no casting tool produces as they are.
The Real Step Comes Afterwards
The optimisation result has to be reworked into a manufacturable CAD design in a subsequent step. The proposal becomes a real part that can be cast, milled or printed — respecting draft angles, minimum wall thicknesses, tool accessibility. This step is engineering work, not automation.
Skip it and you hold a pretty picture in your hand, wondering why manufacturing waves it away.
Conclusion
Topology optimisation is an excellent starting point for lightweight design — but it is the beginning of the design process, not its end. It unfolds its value only when an engineer turns the proposal into a manufacturable design.
We carry out topology optimisations and accompany the path to a manufacturable part. Get in touch.
