PETG temperature tower

255 down to 225 °C in 8 mm bands: bridge, 45° overhang and strings at each.

Toolpaths

Every extrusion move in the G-code, layer by layer. Drag the layer slider, scrub through the top layer, or play the print.

Toolpaths load when you open this view.

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Colour by

ShowTop layer onlyTravel moves

Read from the G-code that the printer gets. The clock adds each move at its programmed speed, without acceleration or travel, so it is shorter than the slicer's estimate.

Bands

Each band starts with one G-code command on its first layer. The slicing script reads the G-code back and stops if a command is missing or lands at the wrong height.

225 °C49–57 mmM104 S225
230 °C41–49 mmM104 S230
235 °C33–41 mmM104 S235
240 °C25–33 mmM104 S240
245 °C17–25 mmM104 S245
250 °C9–17 mmM104 S250
255 °C1–9 mmM104 S255

Base 0–1 mm at the first band's value

Settings

On top of the stack that the print jobs load. The printer tuning page shows that stack.

Printer	File	Changes
Prusa Core One+	`petg-temp (core-one-plus).bgcode`	`temperature` 255`first_layer_temperature` 255

Procedure

What it is for. It sets the PETG temperature for bridges, overhangs and layer bond.

Print. Print it. The bands run from 255 °C at the bottom to 225 °C at the top, and each band has its temperature on the pillar.

Measure. Look at the bridge and the 45° overhang in each band, flex it for layer bond, and check strings on the pin.

Pass. Pick the coolest band with a flat bridge, a clean 45° overhang and good layer bond.

Record. That temperature, and the strings at it.

In the tuning log

Nozzle temperatureMeasured: Stiffened tower, ELEGOO Rapid PETG (Ryan, 2026-10-18): the tower stayed rigid to the top, the colder bands (235, 230, 225) were acceptable, and 240 °C looked best overall: "I like 240." The profile (petg.ini) is 240 °C, first layer too, in place of Prusa's 250 °C.