By Mike Reynolds Heat creep is one of those sneaky 3D printing problems that feels like a clogged nozzle, a slipping extruder, and a moody slicer all rolled into one. The printer starts fine, then halfway through the job you hear the extruder clicking, filament grinds, and the hotend stops feeding. You pull the filament…
When Your Printer Moves But Nothing Comes Out You start a print, the bed heats up, the nozzle reaches temperature, and the printer begins its first layer… but no plastic comes out. The nozzle traces patterns in the air while your build plate stays empty. Or worse, you get a thin, inconsistent dribble for the…
What Causes Gaps Between Infill and Walls? If you’ve ever pulled a finished print off your build plate only to notice visible gaps where the infill meets the outer walls, you’re not alone. This is one of the most common — and most frustrating — 3D printing defects. The good news? It’s almost always fixable…
PETG Stringing: Why It’s Worse Than PLA If you’ve switched from PLA to PETG and suddenly your prints look like they’ve been attacked by a spider, you’re not alone. PETG is notorious for stringing — those thin whiskers of plastic that stretch between different parts of your print during travel moves. It’s the number one…
What Does Overheating Look Like? You’re printing a detailed miniature, a thin tower, or any part with small cross-sections, and somewhere around the top it starts to look… melted. The layers get blobby, details disappear, and the whole structure starts leaning or curling. That’s overheating, and it’s one of the most common issues when printing…
What Is Pillowing in 3D Printing? If you’ve ever pulled a print off the bed and noticed the top surface looks bumpy, uneven, or full of tiny gaps — congratulations, you’ve encountered pillowing. It’s one of the most frustrating cosmetic defects in FDM printing because everything else about the print might look perfect, but that…
You’re examining a fresh print and notice wavy, ripple-like patterns on the surface — usually near corners, sharp edges, or after direction changes. These ripples are called ghosting (also known as ringing or echoing), and they’re caused by vibrations in your printer’s mechanical system. While they don’t usually affect structural integrity, they make prints look…
Under-extrusion is one of the most frustrating problems in 3D printing because it can show up in so many different ways — gaps between lines, thin walls, weak infill, missing layers, or surfaces that look like they’re barely holding together. At its core, under-extrusion means your printer isn’t pushing out enough filament. But figuring out…
You’ve nailed your bed leveling, your first layer looks perfect, and everything seems great — until you notice the bottom edge of your print is slightly wider than the rest. That bulge at the base is called “elephant foot,” and it’s one of the most common 3D printing defects. While it might seem purely cosmetic,…
You’ve just pulled a print off the bed, and the overall shape looks great — but the surface is covered in tiny bumps, zits, and blobs that make it look rough and unprofessional. This is one of the most common and most annoying 3D printing problems, and it affects everyone from beginners to experienced makers….