[Solved] Why might ironing not improve the top surface on a print with very sparse infill? — Ans: Because the top layers lack solid support underneath | 3D Printing

3D Printing - Advanced Print Settings

Why might ironing not improve the top surface on a print with very sparse infill?

ABecause the top layers lack solid support underneath

BBecause ironing only works with PLA filament

CBecause sparse infill increases nozzle temperature

DBecause ironing requires support structures enabled

Step-by-Step Solution

Solution:

Step 1: Understand ironing support needs
Ironing smooths the top surface by flattening filament, which needs solid support below.
Step 2: Effect of sparse infill
Sparse infill means less material under top layers, causing them to flex or deform during ironing.
Step 3: Identify why ironing fails
Without solid support, ironing cannot properly smooth the surface.
Final Answer:
Because the top layers lack solid support underneath -> Option A
Quick Check:
Ironing needs support = Solid layers below [OK]

Quick Trick: Ironing needs solid support under top layers [OK]

Common Mistakes:

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