Print lifting in the corners
Hey there,
Hoping someone can help with problem solving this with me as I'm starting to run out of ideas...
I created a book riser for myself in fusion 360 which does just the job I need (appreciate it may not be the best design but suits me so no need to suggest improvements on this)
I printed this in PETG (knowing that this can lift so have taken as many preventative actions within the settings to remove this)
I Have managed to get the warping right down to a fairly small amount (typically is two corners) but even then, I am still getting warping which is frustrating.
I have tried the following:
reduced first layer to 0.1mm for first layer
reduced first layer speed to 20
Filament is 250 for both
Bed is 100 first layer then 95 for other layers (Lower seems to be worse)
Keep Fan always on unchecked
Min speed 0% max 20%
Printing 0.25mm setting balanced
Door and vent closed
Here's the file - If you have the ability to test print this that would be amazing to see if you get similar results! (I attached the file but not sure if it's showing..)
RE:
Hey there,
Hoping someone can help with problem solving this with me as I'm starting to run out of ideas...
It's better if you can save your project as a .3MF, zip it and post it here. Also, have you tried using a brim? There isn't much in contact with the plate.
RE:
Sorry I forgot to quote you, follow up. Do you think the small / thin areas are the reason for the warping?
Seems I can't edit the post now - I have tried both Mouse ears and Brims with similar results unfortunately (Sorry should have added that as they have been persistent throughout)
3mf added
Hey there,
Hoping someone can help with problem solving this with me as I'm starting to run out of ideas...
It's better if you can save your project as a .3MF, zip it and post it here. Also, have you tried using a brim? There isn't much in contact with the plate.
RE:
I took a look at your STEP file. The main cause is a small contact area. Your part is sitting on thin walls and a few small pads in the center. Barely any of the footprint is actually making contact with the plate. The entire platform and upper structure are pulling inward as it cools, and all that force is peeling along those thin edges. A brim won't help much either because it's only anchored to a narrow strip, there's really nothing for it to grip onto.
A few things I can suggest:
- Rotate it 90° so the large flat platform face is on the bed. You'll need supports for the legs but that will definitely fix the adhesion problem.
- If you want to keep the current orientation, then widen the base of the legs. Even doubling the width and adding a small chamfer where the legs meet the plate would make a big difference.
- Split the print. Print the platform/shelf as one piece (flat side down) and the leg frame separately. Use Fusion 360 to create a tongue and groove joint
So basically to fix it, either more contact area or a different print orientation.
RE: Print lifting in the corners
That's really helpful - Thank you for the input on this, I will take a look at orientation first, and look at adding a chamfer as well to help 🙂 - I will report back later on how this went once I have a print going !