Temperature Tower for PrusaSlicer – PLA, PETG, ABS/ASA, TPU, PC | HexCalibr

A compact hexagonal temperature tower that opens in PrusaSlicer with the temperature changes already set: no profile edits, a guided reading and a scorecard that picks the temperature for you.

Step-by-step guide

Photos, the scorecard and troubleshooting: hexcalibr.ui4.eu/temperature-tower.html
Scorecard: hexcalibr.ui4.eu/temperature-tower-scorecard.html

What it does

One 7 mm block per temperature, printed from hot to cold. Every block carries the same features, one group per face: four that decide (a snap flag for layer strength, a string ladder, a steep overhang ramp and a 22 mm bridge), two that only confirm (the engraved label and a smooth face) and a see-through hole. Each one fails visibly when the plastic is too hot or too cold, so you judge features, not a vague "looks best".

Why HexCalibr

• No profile edits. Open the project and your own printer, filament and print profiles stay as they are. The file sets each temperature with a marker on the layer slider and keeps the test flow fixed with M220.

• Guided reading. The guide shows what a pass and a fail look like for every feature, with photos of real prints.

• Scorecard. Click a ✓, H (too hot) or C (too cold) per feature on the online card. Simple rules pick the block.

Which file to download

Two 3MFs per material. Take coarse when you don't know the filament's range, fine to narrow it down.

• PLA: coarse 240→180 °C · fine 230→190 °C

• PETG: coarse 270→200 °C · fine 260→220 °C

• ABS/ASA: coarse 280→220 °C · fine 270→230 °C

• TPU: coarse 250→200 °C · fine 240→210 °C

• PC: coarse 310→250 °C · fine 300→260 °C

Coarse files have 10 °C steps, fine files 5 °C. Above 250 °C you need an all-metal hotend.

Quick steps

1. Download the single .3mf for your material (not "Download all" as a ZIP).

2. In PrusaSlicer 2.9 use File › Open project, never Import.

3. Slice, check that the layer slider shows one marker per block (hover one: M104 S…), then print.

4. Score each block on the scorecard, strings first, before you touch the tower.

A real result

PETG on a RatRig V-Core 4 IDEX (Rapido UHF hotend, Orbiter 2.5 extruder), coarse file 270→200 °C: I chose 240 °C.

IDEX and multi-tool

Print the whole tower with one tool. temp-tower_PETG_coarse_270-200_10C_T0.3mf is a ready example pinned to T0; for the other tool, set the object's extruder in PrusaSlicer.

Share your Make

Printed it? Post a Make with a photo of your best and your worst block, and say which temperature you chose. Makes help other people read their own tower.

License and credits

CC BY-SA 4.0. HexCalibr by Matteo Beretta. If you share or remix it, credit "HexCalibr by Matteo Beretta", link back to this page, and keep the same license. The HexCalibr name and logo are not covered by the license: please give modified versions a different name. The official, always-updated files are on this page. Original design; the methods owe a lot to Ellis' Print Tuning Guide and CNC Kitchen (see License and credits).

Not affiliated with or endorsed by Prusa Research, Rat Rig or any other brand named here. All trademarks belong to their owners.

Version 2.3 · made for PrusaSlicer 2.9 (2.7 minimum).

🇮🇹 Italiano

Torre di temperatura esagonale che si apre in PrusaSlicer con i cambi di temperatura già impostati, senza modificare i profili. Scarica il singolo .3mf del tuo materiale (coarse a passi di 10 °C, fine a passi di 5 °C), aprilo con File › Apri progetto, stampa e valuta i blocchi sulla scheda punteggio. Guida completa in italiano: hexcalibr.ui4.eu/it/temperature-tower.html