How to Get ABS and ASA to Stick to the Bed

With ABS and ASA, 'not sticking' and 'warping' are the same disease at different stages: shrink forces build as the material cools, and the bond to the plate is what loses. Everything that keeps these materials hot keeps them stuck.

Heat is the adhesive

ABS bonds to a hot PEI surface well — but only a genuinely hot one. Bambu’s stock profiles set the bed to 90 °C for ABS and 100 °C for ASA on textured PEI; industry baselines run the same or hotter (Anycubic, RatRig and others default ABS beds to 105 °C). Every degree below the window weakens the bond exactly where shrink stress is strongest — the corners.

The checklist

1. Bed at 90–100 °C and fully preheated. Start the print only after the bed has held its target a few minutes; a plate that reads 90 on the thermistor can still be cooler at the corners. On passively enclosed machines, that soak time also warms the chamber air.

2. No cooling on the base. Stock ABS profiles keep the fan off for the first 3 layers, then cap it inside 10–60 % (ASA: 25–35 %). Any profile that fans the first layers will pop parts off the plate regardless of bed temperature. The auxiliary side fan belongs at 0 %.

Filament settings → Cooling

3. Right plate, plus glue as insurance. Textured PEI or an engineering-type plate. Never Cool Plate or SuperTack — the profiles mark those pairings unsupported (bed temperature 0) because 90–100 °C destroys low-temperature coatings. A thin glue film helps twice: slightly better grip, and a release layer so the part doesn’t take PEI with it.

4. Brim, almost always. Outer brim, 8 mm. ABS’s shrink forces at corners are strong enough that a brim is standard practice, not a fallback.

Process → Others → Brim

The chamber is part of adhesion

A part can bond perfectly and still tear loose an hour later when accumulated shrinkage beats the bond — late releases are a chamber problem, not a plate problem. Machines with active chamber heating should run it (Bambu’s profiles set 65 °C for ABS/ASA); passively enclosed machines want the door shut, lid on, and a 10–15 minute preheat. On open printers, large ABS parts will eventually release no matter the plate prep — the honest options are in the ABS/ASA warping guide.

Reading the failure

Full ABS/ASA printing values — nozzle range 240–280 °C, speeds, drying — are in How to Print ABS and ASA; cross-material adhesion basics in the main adhesion guide.

Frequently asked questions

Why won’t ABS stick to the bed?

Because the bed isn’t genuinely hot — with ABS and ASA, heat is the adhesive. Bambu’s stock profiles set 90 °C for ABS and 100 °C for ASA on textured PEI, and industry baselines run the same or hotter (Anycubic and RatRig default ABS beds to 105 °C). Every degree below that window weakens the bond exactly where shrink stress is strongest: the corners. Also make sure no cooling hits the first 3 layers.

What cooling and brim settings stop ABS releasing from the plate?

Keep the fan off for the first 3 layers, then cap it at 10–60 % for ABS (25–35 % for ASA), with the auxiliary side fan at 0 %. Add an outer brim of 8 mm — ABS’s corner shrink forces make a brim standard practice, not a fallback. Print on textured PEI or an engineering plate, never Cool Plate or SuperTack, with a thin glue film as insurance.

Why does my ABS print release mid-print after sticking fine at first?

A mid-print release with curled corners is a chamber problem, not a plate problem: accumulated shrinkage eventually beats the bond. Run active chamber heating if you have it (Bambu’s profiles set 65 °C for ABS/ASA); on passively enclosed machines shut the door, keep the lid on and preheat 10–15 minutes. On open printers, large ABS parts will eventually release no matter the plate prep.

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