Calibration Test Prints

Prints 11 fins angled from 20° to 70° so you can see exactly where your printer starts to struggle with overhangs. Print it once without supports, check which fins look clean, and you'll know the precise angle at which to set your slicer's support threshold — no more guessing.

Related: Full calibration guide →

Seven thin towers spaced 20mm apart force the printhead to travel across open air on every pass. Any excess filament oozing from the nozzle shows up as strings or blobs between the towers. Adjust retraction distance and temperature until the towers print clean — that's your dialled-in setting.

Related: Full stringing fix guide →

Five bridge sections spanning 10mm to 50mm, printed with nothing underneath. Flip the finished print and inspect each underside — a successful bridge is flat and smooth, a failing one sags. Knowing your bridge limit means you can model and slice with or without supports intelligently.

Related: Full supports guide →

A thin 60×60mm grid square that makes your first layer immediately readable. Lines that merge together mean the nozzle is too close; lines that won't stick mean it's too far. Takes under 5 minutes to print and gives you a concrete target to tune your Z offset against.

Related: First layer problems guide →

Six stacked segments printed at descending temperatures from 220°C to 195°C, each with a small overhang tab. Compare surface finish, stringing, and overhang quality across the segments to find the sweet spot for a specific filament brand. Useful every time you switch to an unfamiliar spool.

Related: Filament comparison guide →