Why would ASA warp drewing print have temperature set @ 260 nozzle bed temp 90 using texture plate
Chamber temps? Is the warping by the door or by the exhaust outlet? If its by the door, tape the door with painters tape over the gap. If its by the exhaust, theres a cover that you can print. clean the plate really well, dry with paper towel, add a brim with 0 brim to object gap, heat the bed and wait until the chamber is above 45c(50c or higher would be better) and set the bed temp to 100c. If the printer is in a cold location, good luck.
oh and just in case, dry your filament lol
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I was printing playmobil RC train track and found warping to be an issue in winter. The printer is inside, but its an old house. I’ve seen people modify their printers with a chamber heater but I’m a bit scared of doing it myself.
I ended up redesigning the parts and cutting them in to smaller sections which helped. But I’ve had prints literally bend and pull the build plate up from the printbed.
I’m betting its due to your chamber temp. ASA shrinks a lot. You can easily see this on long flat parts if printed in both PLA and ASA. I was shocked to see the difference in length just due to shrinkage.
I’m planning on putting the printer into an insulated tent enclosure and see if that helps before going the chamber heater route. From what I’ve read the electronics are likely to be fine but the belts may not be happy at 60C and above.
Every filament warps for the same reason - the model is cooling off too fast while it’s still being printed. As the print cools, it tries to contract/shrink. If it is cooling off too fast, the upper layers shrink much more than the lower layers (which are closer to the build plate and insulated by the upper layers). As the upper layers shrink, they pull “inwards” on the perimeter of the top of the print. This generates an upward force at the edges of the perimeter, which pulls up at the bottom perimeter, which pulls the print edges off the build plate.
Some filaments shrink more than others, making them more susceptible to this problem. ABS and Nylon and PETG are at the top of the list. ASA is a little less warp prone than ABS. PLA is the least warp prone (mostly because it’s printed at the lowest temp so it cools less so it shrinks less).
The fix is the same for every filament - higher, better controlled chamber temps. Depending on how cold and drafty your printing environment is, you might be successful with just the printer’s standard enclosure. But you might need to put some painters tape around the door seams if the model is big and the ambient temp is low. And if the environment is too cold, you might need to put some insulating blankets around the printer.
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a rather general question with very little background information from your side, so here are rather general possible reasons
- as other mentioned chamber temperature during printing to reduce temp delta
- adhesion to build plate insufficient
- part geometry/design favoring warping
- Slicer settings; e.g. using brims, infill type/density, # of walls, print speeds…etc.
- Type/brand of filament can have different shrink factors and with it difference in warping tendencies.