Goal
Produce one small PLA model while learning what a healthy first layer looks like. Use the printer manufacturer’s setup guide for assembly and machine-specific checks.
1. Inspect the printer before power-on
- Remove shipping blocks, ties and packing material identified by the manual.
- Make sure the build plate is seated and the nozzle area is clear.
- Route the power and motion cables so they cannot snag.
- Confirm the voltage selector, if present, matches the local supply. If unsure, stop and contact the seller or a qualified person.
2. Start with ordinary PLA
Use a known spool of 1.75 mm PLA if that is the diameter specified by the printer. Avoid flexible, wood-filled, glow or abrasive filament for the first test because each introduces another variable.
3. Load the filament
Heat the nozzle using the printer’s PLA loading routine. Cut a clean filament tip, release the extruder as instructed and feed until the printer can extrude a continuous strand. Keep hands away from the hotend and remove purged plastic with a tool only after it is clear of moving parts.
4. Run the printer’s leveling process
“Automatic leveling” measures the bed; it does not always set the final nozzle gap. Follow the manual’s homing, mesh and Z-offset sequence. A useful first layer is gently flattened, continuous and joined to its neighboring lines.
5. Slice a small test model
Select the exact printer, 0.4 mm nozzle if fitted and a generic or manufacturer PLA profile. For the first attempt, keep the profile defaults. A 0.20 mm layer height and modest-size model make the result easy to inspect.
6. Watch the entire first layer
| What you see | Likely meaning | Next action |
|---|---|---|
| Round loose lines or gaps | Nozzle too high, dirty plate or unsuitable temperature | Stop and use the first-layer guide |
| Rough transparent smear or nozzle dragging | Nozzle too low | Increase the gap in a small supported step |
| Continuous slightly flattened lines | Good initial contact | Let the print continue |
7. Let the plate cool before removal
Many parts release as the plate cools. Flex a removable sheet only as its manufacturer allows. Do not drive a sharp scraper toward your hand or pry against delicate coatings.
First-print checklist
- The exact printer and nozzle profile is selected.
- PLA is loaded and extrudes smoothly.
- The current bed mesh and Z offset are saved.
- The first layer is continuous and gently flattened.
- The part cools before removal.
- The working profile is saved before further tuning.
Next: learn the calibrations that solve the most common quality problems.