PLA Filament Print Settings: Nozzle Temperature, Retraction and Bed Setup for Tronxy Black 1.75mm
This answer-first guide for the Tronxy Black PLA 1.75mm spool sets out the working print settings: the 180–210°C nozzle range from the listing, the practical 190–210°C sweet spot, bed temperature, retraction for direct-drive versus Bowden setups, part cooling, and a temp-tower calibration routine. General studio practice is labelled separately from the listing facts, and the companion storage-and-drying guide covers the unboxing, humidity targets and moisture-failure fixes.
Answer first: start at 200°C, 60°C bed, 100% fan, then tune
The Tronxy Black PLA Filament is a 1.75mm, 1kg spool of black PLA with a dimensional accuracy of ±0.02mm, priced at $45.99 under SKU HC-PLA-1KG-BLACK. The listing recommends an extrusion or nozzle temperature of 180–210°C, and it ships vacuum-sealed with desiccant. The listing also claims minimal warping, no heated bed required, little to no odor and compatibility with nearly all FDM printers on the market.
The practical starting point is a nozzle of 200°C, a bed of 50–60°C and part cooling at 100%, then run a temp tower to find the cleanest layer for your machine. Retraction runs 0.5–2mm at 25–40mm/s on a direct-drive setup, and 4–7mm at 25–45mm/s on a Bowden tube; travel speed sits at 150–200mm/s. These are general studio practice rather than listing specs — the seller has not published a machine-specific profile.
The fastest path to a clean black PLA print is to calibrate the temperature first, then retraction, then flow. Do not change temperature and retraction at the same time; record each setting on a test tile and move on only when the layer looks clean. The companion storage-and-drying guide covers the vacuum-sealed unboxing, humidity targets and the moisture failures that look like temperature problems but are not.
What the listing says versus the practical starting point
The listing recommends a nozzle range of 180–210°C for the Tronxy Black PLA. General studio practice narrows that to a 190–210°C sweet spot, because PLA melts cleanly at the upper-middle of the range and the lower end risks under-extrusion on a cool nozzle. The table below separates the listing facts from the general-practice starting point.
| Setting | Listing fact | General practice starting point |
|---|---|---|
| Nozzle temperature | 180–210°C | 190–210°C sweet spot; start at 200°C |
| Bed temperature | No heated bed required | 50–60°C for the first-layer adhesion test |
| Part cooling | Not specified | 100% part fan for PLA |
| Filament diameter | 1.75mm, ±0.02mm | Verify with calipers before the first print |
| Retraction | Not specified | Direct 0.5–2mm / Bowden 4–7mm, 25–45mm/s |
| Travel speed | Not specified | 150–200mm/s after the first-layer test |
The listing's no-heated-bed claim is a product selling point, not a refusal to use a bed. A 50–60°C bed improves first-layer adhesion on ABS-adjacent surfaces, and the seller has not published a bed-temperature recommendation, so the 50–60°C band is general practice.
How to run a temperature tower
A temperature tower is a tall test print that changes nozzle temperature by 5°C every few layers, so you can see which band produces the cleanest walls, sharpest overhangs and least stringing. General studio practice prints the tower at 0.2mm layers with 100% part fan, then picks the band where the overhangs are clean and the stringing is light.
The tower step order
- Slice a temperature tower model. Use a standard 20-layer band model; most slicers ship one as a preset. Set the tower to drop 5°C per band from 210°C down to 180°C.
- Start with 200°C on the first layer. The first layer sets the adhesion; keep it on the warm side so the bed sticks.
- Print the tower at your normal speed. 50–60mm/s is a safe general-practice print speed for the tower; do not rush the test.
- Inspect each band. Look for stringing between columns, overhang droop, and a rough or under-extruded surface. The cleanest band is your nozzle temperature.
- Lock the temperature and move to retraction. Do not change two settings at once; the temperature decision comes before the retraction decision.
General practice: a stringy tower at the top of the range and a weak, brittle tower at the bottom means the sweet spot is in the middle, around 195–205°C. If the tower is clean at 200°C, stop there and move on.
Retraction: direct drive versus Bowden
Retraction pulls a small amount of filament back from the nozzle during travel, so the nozzle does not dribble plastic across the gap. The amount and speed depend on your extruder geometry. General studio practice sets direct-drive retraction lower and Bowden retraction higher, because the Bowden tube lets the filament compress along the way.
| Setup | Retraction distance | Retraction speed | Travel speed |
|---|---|---|---|
| Direct drive | 0.5–2.0mm | 25–40mm/s | 150–200mm/s |
| Bowden tube | 4.0–7.0mm | 25–45mm/s | 150–200mm/s |
Tuning the retraction on a bench
General practice: start at the low end of the range, print a stringing cube, and raise the retraction 0.5mm at a time until the strings disappear. If the nozzle starts clicking or under-extruding, the retraction is too high; back off 0.5mm. The seller has not published a retraction profile, so these numbers are general practice.
Bed, cooling and first-layer adhesion
The listing says no heated bed is required, but a 50–60°C bed is the general-practice starting point for the first layer, because PLA sticks better to a slightly warm surface and the first layer is the most failure-prone layer of any print. Part cooling runs at 100% for PLA, because PLA needs the fan to freeze each layer before the next one lands.
| Element | Starting setting | Why |
|---|---|---|
| Bed temperature | 50–60°C | First-layer adhesion; the listing's no-bed claim is a selling point, not a refusal to use a bed |
| Part fan | 100% | PLA freezes fast; the fan sets overhangs and reduces warping |
| First-layer height | 0.2mm | A squished first layer bonds to the bed; a gap first layer lifts |
| First-layer speed | 20–30mm/s | Slower first layers stick better; the general-practice starting point |
| Bed surface | Clean, dust-free | Oil, dust and leftover plastic break adhesion; wipe the bed between tests |
General practice: if the first layer lifts, lower the nozzle 0.05mm or raise the bed 5°C; if it squishes into a blob, raise the nozzle 0.05mm. The seller has not published a bed-temperature or first-layer profile, so treat these as general practice.
Calibration checklist before the first job
Before you run a real part on the Tronxy Black PLA, run this checklist. Each item is a general-practice step that catches the most common first-job failures, and none of them is a listing spec — the seller has not published a machine profile.
- Measure the filament diameter with calipers. The listing says 1.75mm, ±0.02mm. Verify at three points along the spool; if it reads outside 1.73–1.77mm, note the average and set the slicer to that value.
- Level the bed. A level bed sticks on the first layer; an unlevel bed sticks on one side and lifts on the other.
- Run the temperature tower. Pick the cleanest band between 180 and 210°C; that is your nozzle temperature.
- Tune retraction. Direct 0.5–2mm, Bowden 4–7mm, starting at the low end.
- Set the part fan to 100%. PLA needs the fan; the listing does not specify a fan setting.
- Print a single-layer first-layer test. A smooth, even line with no gaps or blobs means the bed is level and the nozzle height is right.
- Record the settings. Write the nozzle, bed, retraction and flow on the spool label; the next build starts from a known good state.
Common beginner mistakes on black PLA
A few settings catch out most new black-PLA users. Each row pairs the mistake with the symptom and the fix, and the symptom is what you will see on the bench.
| Mistake | Symptom on the print | Fix and prevention |
|---|---|---|
| Starting too cold at 180°C | Under-extruded, weak layers, poor adhesion | Start at 200°C; the lower end of the range is for small parts, not first jobs |
| Starting too hot at 220°C | Stringy, droopy overhangs, oozing | The listing range tops out at 210°C; back off to 200°C |
| Running the part fan at 50% | Sagging overhangs, warping corners | Set the fan to 100% for PLA; the fan sets each layer |
| Bowden retraction at 1mm | Strings across the gaps | Raise Bowden retraction to 4–7mm; the tube compresses the filament |
| Changing temperature and retraction together | You cannot tell which fix worked | One setting at a time; record each test tile |
| Skipping the bed-level test | First layer sticks on one corner, lifts on the other | Print a single-layer test before the real job |
| Leaving the spool open for weeks | Brittle, bubbly prints, popping sounds | Reseal after use; the storage guide covers the humidity targets |
Starter projects on the Tronxy Black PLA
After the calibration checklist, the right starter parts teach the settings without wasting plastic. General practice: start small, flat and string-prone, so each test exposes one setting.
| Project | What it tests | Next step when it prints clean |
|---|---|---|
| Temperature tower | Nozzle band, overhang, stringing | Lock the temperature; move to retraction |
| Retraction stringing cube | Stringing across gaps | Lock retraction; move to flow |
| First-layer square | Bed level and nozzle height | Move to a small benchy |
| Benchy with a 0.2mm layer | Overall settings on a real part | Tune flow and print a larger model |
| Small calibration cube | Dimensional accuracy, ±0.02mm tolerance | Print a functional bracket or holder |
General practice: a clean black PLA benchy at 200°C, 60°C bed, 100% fan, and 0.5–2mm direct retraction means the profile is ready for larger parts. The seller has not published a profile, so the settings on your spool label are the working record.
Flow, layer height and line width after the temperature tower
Once the temperature tower locks the nozzle band, the next calibration step is the extrusion flow, because the ±0.02mm diameter tolerance means the filament is consistent, but the slicer's default flow may still under- or over-extrude. General studio practice measures the wall thickness of a 100% infill cube with calipers and compares it to the sliced wall thickness, then adjusts the flow multiplier so the measured wall matches the sliced wall to within 0.1mm.
The layer-height and line-width working range
| Setting | General-practice range | What it controls |
|---|---|---|
| Layer height | 0.1–0.3mm | Detail vs speed; 0.2mm is the general-practice default |
| Line width | 0.4–0.6mm | The wall bead; a 0.4mm nozzle with a 0.45mm line width is a clean default |
| Wall count | 3–4 walls | The structural strength of the part; 3 walls is the general-practice minimum |
| Infill density | 15–25% for parts | The internal structure; 20% is the general-practice default |
| Flow multiplier | 95–105% after calibration | The amount of plastic the nozzle lays; calibrate with a measured wall |
General practice: a 0.2mm layer with a 0.45mm line width on a 0.4mm nozzle lays a clean wall, and the flow multiplier should be within 95–105% after the wall measurement. The seller has not published a layer-height or line-width profile, so these are general-practice starting points.
Speed bands: walls, infill, travel and the first layer
Speed matters on PLA, because a wall that runs too fast lays a weak bead, and a first layer that runs too fast lifts off the bed. General studio practice splits the speed into bands, so the printer can run fast on the safe moves and slow on the structural ones.
| Speed band | General-practice range | Why |
|---|---|---|
| First layer | 20–30mm/s | Slow first layers stick; the first layer is the most failure-prone layer |
| Outer walls | 30–40mm/s | Slow outer walls give a clean surface; fast outer walls ripple |
| Inner walls | 50–60mm/s | Inner walls can move faster; the surface is hidden |
| Infill | 60–80mm/s | Infill is the fastest band; the structure is internal |
| Travel | 150–200mm/s | Travel moves between gaps; retraction handles the oozing |
General practice: start with the speed bands on a benchy, then push the infill and travel up on the next part once the walls are clean. The seller has not published a speed profile, so the bands are general practice. The first layer stays slow even after the rest of the profile speeds up.
What the Tronxy Black PLA competes with on the bench
The listing describes the Tronxy Black PLA as a high-purity PLA formulation with low shrinkage, no warping, no bubbles and strong toughness. General studio practice compares PLA on the temperature, strength and moisture axes rather than the brand name, because the setting profile matters more than the label. The material comparison guide covers the PLA versus PLA+ versus PETG differences, and the roundup compares the Tronxy spool against the common black PLA competitors on the market.
The working takeaway is that a clean black PLA print at 200°C, 60°C bed, 100% fan, and a calibrated flow beats a noisy, stringy print at any brand. The seller has not published a material-grade comparison, so the brand choices are covered in the comparison guides rather than here.
What to do when the first layer does not stick
The first layer is where most PLA jobs fail, and the fix is almost always a small adjustment rather than a new spool. General studio practice works the first-layer adhesion in a fixed order: bed level first, nozzle height second, bed temperature third, and draft last.
The first-layer fix order
- Re-level the bed. A paper-test under the nozzle at the four corners is the general-practice check; the paper should drag slightly but not tear.
- Adjust the nozzle height. A first layer that squishes too thin looks like a flat ribbon; a first layer that sits too high shows gaps. Lower or raise the nozzle 0.05mm at a time.
- Raise the bed to 60°C. A warm bed helps the first layer bond; the listing's no-bed claim is a selling point, not a refusal to warm the bed.
- Slow the first layer to 20–30mm/s. A slow first layer lays a controlled bead; a fast first layer skips and lifts.
- Block drafts around the printer. A draft cools the first layer unevenly and curls the corners.
General practice: a clean first layer is a single, smooth line with no gaps, no blobs and no curling. The seller has not published a first-layer profile, so the fix order is general practice.
The Bottom Line
The bench verdict: the Tronxy Black PLA spool, $45.99 under SKU HC-PLA-1KG-BLACK, prints cleanly at 200°C nozzle, 50–60°C bed, 100% part fan, with direct-drive retraction at 0.5–2mm or Bowden at 4–7mm. Start at 200°C, run a temp tower, then tune retraction on a stringing cube before the first job. The listing's 180–210°C range is the envelope, the 190–210°C sweet spot is the working band, and the seller has not published a machine-specific profile. The companion storage-and-drying guide covers the vacuum-sealed unboxing, the humidity targets and the moisture-failure fixes that look like temperature problems but are not.
Frequently Asked Questions
What nozzle temperature should I use for the Tronxy Black PLA?
The listing recommends 180–210°C. General studio practice narrows that to a 190–210°C sweet spot, and a starting point of 200°C. Run a temperature tower to pick the cleanest band for your machine; a stringy tower at the top and a weak tower at the bottom means the middle of the range is right.
Do I need a heated bed for PLA?
The listing says no heated bed is required. General studio practice still starts with a 50–60°C bed for the first layer, because a warm bed improves first-layer adhesion. The no-bed claim is a selling point, not a refusal to use a bed; you can lower the bed once the first layer sticks.
What retraction setting works for PLA?
General studio practice: direct-drive extruders use 0.5–2.0mm at 25–40mm/s, and Bowden setups use 4.0–7.0mm at 25–45mm/s. Start at the low end, print a stringing cube, and raise the retraction 0.5mm at a time until the strings disappear. The seller has not published a retraction profile.
What is the best print speed for PLA?
General studio practice: start at 50–60mm/s on the main walls and 20–30mm/s on the first layer. Travel speed runs 150–200mm/s. The first layer is the most failure-prone layer, so slow it down; once the part is bonded, the walls can move faster.
Why is my black PLA stringing across the gaps?
Stringing usually means the nozzle is too hot or the retraction is too low. General studio practice: lower the nozzle 5–10°C and raise the retraction in 0.5mm steps on a stringing cube. If the stringing returns after the fix, the spool may be absorbing moisture; the storage guide covers the drying targets.
How accurate is the 1.75mm filament diameter?
The listing says 1.75mm with a dimensional accuracy of ±0.02mm. General practice: verify with calipers at three points along the spool, and set the slicer to the measured average. A consistent diameter keeps the extrusion flow even and the walls clean.
Should I run the part cooling fan at 100%?
Yes. General studio practice runs the part fan at 100% for PLA, because PLA needs the fan to freeze each layer before the next one lands. A lower fan speed causes sagging overhangs and warping corners. The listing does not specify a fan setting.
What does the vacuum-sealed package mean for the first print?
The Tronxy Black PLA ships vacuum-sealed with desiccant, so the spool is dry when it opens. General practice: open the bag, load the spool, and reseal the bag after the session. The companion storage guide covers the humidity targets and the drying box setup for longer storage.
Why do I see bubbles or popping sounds while printing?
Bubbles and popping are moisture signs, not temperature problems. General studio practice: PLA is less hygroscopic than PETG or nylon, but long open exposure still degrades it. If the spool has been open for weeks, dry it in a dry box; the storage guide covers the drying targets.
Which FDM printers is the Tronxy Black PLA compatible with?
The listing says it works with nearly all FDM printers on the market, including RepRap, MakerBot, Ultimaker, Prusa and the common desktop machines. The seller has not published a model-by-model compatibility list, so confirm your printer takes 1.75mm filament before ordering.
Related Guides
Buy the Tronxy Black PLA Filament 1.75 mm 1 kg — $45.99, Vacuum-Sealed with Desiccant →
Article Keywords
PLA filament print settings, Tronxy black PLA 1.75mm 1kg, nozzle temperature 180-210°C, temp tower calibration, retraction direct drive Bowden, bed 50-60°C, part cooling fan 100%, stringing fix lower nozzle, 1.75mm ±0.02mm diameter check, $45.99 HC-PLA-1KG-BLACK, vacuum sealed desiccant, FDM PLA settings guide, first layer adhesion, QIDI Tech
