Slicer Settings That Reduce Cost Without Reducing Quality
Infill percentage, layer height, and wall count all have direct cost implications. Most prints can be made 20–30 % cheaper by adjusting three settings — without any visible quality difference on the finished part.
Your slicer is the interface between a 3D model and a real print. Every setting in it has a cost implication. Most people use default profiles and never revisit them. That leaves money on the table for every print you produce. Here are three settings that offer the best cost reduction for the least quality trade-off.
Infill percentage: the biggest lever
Infill is the internal structure of a solid-looking part. At 15 % infill, a part that looks fully solid is mostly air on the inside. At 100 % infill, it is genuinely solid throughout.
For decorative or display objects with no structural requirement: 10–15 % infill with a gyroid or lightning pattern is sufficient. The part will not flex noticeably under normal handling. Reducing from 20 % (default) to 12 % on a 100 g print saves roughly 8 g of material — small in isolation, significant at 200 prints per month.
For functional parts under light load: 20–25 %. For structural parts taking real force: 30–40 %. Very few prints actually need more than 40 % infill — solid infill is almost never needed and takes roughly 4× the material of 25 % infill.
Rule of thumb: match infill to load, not to appearance. The outside of the print looks the same regardless of internal density.
Layer height: speed vs. surface quality
Layer height controls how thick each deposited layer is. Standard layer height is 0.2 mm on a 0.4 mm nozzle. Increasing to 0.3 mm (the maximum most slicers recommend for a 0.4 mm nozzle) reduces print time by approximately 30 % because fewer layers are needed to reach the same height.
The trade-off is surface finish: larger layers are more visible, particularly on curved surfaces and gradual slopes. For parts that will be painted or where surface texture is not critical, 0.28–0.3 mm is an easy win. For display models or anything with detailed surface features, stay at 0.2 mm.
Reducing from 0.2 to 0.3 mm layer height on a 4-hour print makes it a 2.7-hour print — a 33 % reduction in electricity cost, machine wear, and labour tied to monitoring time. At 200 prints per month this is a material saving.
Wall count: structural strength where it matters
Walls (perimeters or shells) are the outer layers that give a print its surface and structural integrity. Most prints default to 2–3 walls. Increasing walls beyond what the part needs adds material and time; reducing below structural requirement risks part failure.
For display objects: 2 walls is often enough. For parts with threads, snap-fits, or attachment points: 3–4 walls at those specific areas matter more than the rest of the part. Some slicers (Orca Slicer, Bambu Studio) allow wall count to be set per-region, which is a powerful optimisation if your workflow supports it.
Combining the adjustments
On a typical decorative print: reducing infill from 20 % to 12 %, increasing layer height from 0.2 to 0.28 mm, and reducing walls from 3 to 2 can cut material use by 15–25 % and print time by 25–35 % with no visible quality difference to an end customer.
Calculate the cost impact before and after in PrintCostCalc — enter the slicer's material weight estimate and print time at both settings to see the exact margin difference. For high-volume prints, even small per-unit improvements compound into significant monthly savings.