Wet PLA is one of those 3D printing problems that sneaks up on you. One week your prints look clean, smooth, and reliable. The next week, the same spool starts making weird popping sounds, the surface looks rough, the nozzle leaves wispy strings everywhere, and the finished part feels weaker than it should. It is…
When you print a multi-color model using the AMS system on a Bambu Lab printer, a separate small tower appears beside your model on the print plate. This is the purge tower. It exists to flush the previous color out of the nozzle before the new color starts printing on your model. Without it, every…
Removing a finished print from the bed should be simple: the part releases cleanly and comes off without damage. When it doesn’t, either the print is stuck too hard or too loose, and both have straightforward fixes. Here is the right technique for every situation. The Right Way: Let It Cool First The single most…
Gluing 3D printed parts together is one of the most common finishing tasks in FDM printing. Multi-part prints, repairs, and assemblies all need reliable adhesion between PLA, PETG, or other printed surfaces. The right adhesive depends on the joint size, the load it needs to carry, and how quickly you need it cured. Here is…
Top and bottom layers are the solid surface skins on the top and bottom of a 3D print. They’re separate from the walls and infill, and the number you set directly affects how solid and clean those surfaces look. Too few and you get gaps. Too many and you’re wasting material on overkill surface thickness.…
Why PLA Slicer Settings Matter More Than the Printer The same PLA filament on the same printer will produce dramatically different results depending on slicer settings. Get temperature, speed, retraction, and cooling right and PLA prints clean, strong parts every time. Get them wrong and you get stringing, warping, weak layer adhesion, or surface quality…
What Warping Is and Why It Happens Warping is when the corners or edges of a 3D print lift off the build plate during printing. The base of the print peels away from the bed, the part deforms, and in severe cases the print detaches entirely mid-job. The physics behind it are straightforward. Plastic expands…
What Stringing Is and Why It Happens Stringing is the thin threads of filament left between parts of a print when the nozzle travels across an open gap. The nozzle moves from one section to another, and instead of leaving nothing behind, it drags a fine strand of melted plastic across the gap. On a…
What Under Extrusion Is and How to Spot It Under extrusion happens when your printer deposits less filament than the slicer expects. The nozzle is moving and the filament is feeding, but not enough plastic is coming out to fill the path correctly. You will see it as gaps between infill lines, weak or porous…
Printing threads and precise holes in FDM requires accounting for how FDM slightly under-sizes holes and the specific design constraints that make threads printable versus fragile. Get the tolerances right and your printed threads work on the first try. Get them wrong and you have a part that either won’t thread or strips after two…