| Feature | TG5 Requirement | | :--- | :--- | | (e.g., fits, mating surfaces) | Very tight (e.g., ±0.03 mm up to 50mm, then increasing). Requires mold design to account for shrinkage precisely. | | Non-Functional (N) (e.g., free edges, bosses) | Standard tight (e.g., ±0.10 mm up to 50mm). |
Hans pointed to the vertical ribs. "You’ve got zero draft here, Elias. If we pull this from the steel, it’ll leave drag marks. But if you add the standard 1.5-degree draft, the top of the rib will be thinner than the bottom. That takes us right out of the at the tip." din 16742 - tg5
is a specific accuracy class within this standard. In the hierarchy of tolerance groups (TG1–TG9), TG5 is considered a "precise" or "standard precision" class for high-quality injection moulding. | Feature | TG5 Requirement | | :--- | :--- | | (e
: Uniform wall thickness is essential for quality. Recommended minimums vary by material, such as for ABS and for Polycarbonate. | Hans pointed to the vertical ribs