Hello Everybody,
I am satisfied of the printing quality of my brand new A1 but today, printing the poop bucket I realized a warping issue.
To better understand the set-up, here some useful information:
Here I attach some photos to show the issue.
What can I do to avoid it?
Increase the bed temperature? Use hairspray? Can the extra draft profile have had an influence on it?
Thanks.
None of the images appear to work.
Post edited and pictures correctly loaded, thanks for your comment.
Add a brim. It should spread the heat out behind the model whilst keeping the model flat to the build-plate.
That often works.
Make sure there is no potential for draught. With the A series being open to the world, temperature fluctuations can affect different materials.
PLA is generally better at handling a draught, but, reducing them helps most prints as a uniform temperature is a must.
Can hairspray help in this case?
And also, the fact that I selected the draft profile could have had a role in the process?
I wouldn’t have chosen draft, my self.
I have no experience with hairspray.
Hi,
Which filament are you using?
Are the temperatures set correctly as well?
Is the bed really clean? Have you tried cleaning it with alcohol?
I use glue sticks when something really doesn’t want to work.
As suggested, a brim and if pushed make it zero gap (it’ll make cleanup harder but it’s more reliable). Good bed adhesion can be tricky with some designs and smooth plates are better because you use gluestick to assist. Hairspray in most cases is a release agent and you really want the opposite 
And yes, scrub your bed in a sink of hot water and dawn.
As specified in the first post the filament is the Amazon Generic PLA.
The bed I didn’t clean since it is brand new installed. I will use a layer of 3dlac, along with no fan for the first 3 layers and check again.
New build-plate does not necessarily mean that it has no residue on it that negatively effects the adhesion so better to give it a good wash and rinse with dishwashing soap and water.
As aforementioned by others a brim will help with adhesion.
Hairspray can also give increased adhesion and no it is not a “release agent” as someone stated before. It is an intermediate layer between the PEI and the printed filament material that sticks well to the PEI and most filament material while also preventing materials that stick too well to PEI like some PETG and Silk blends leaving difficult to remove filament material residues on the PEI sheet.
I think the standard bed temps for PLA on the A1 are 65C but this high of a temperature can be detrimental to build plate adhesion if the glass transition temperature of the specific filament is low so you may also try to lower the build plate temps down to 60C or even a little lower.
Yes. As @MalcTheOracle stated, the root cause of warping (and curling) is usually uneven cooling. That actually has 3 major items that influence how the latest layer cools and contracts on top of the prior, inducing bending.
You should be able to get much better results with finer layers, going slower. In particular since layer height and speed both act on the volume giving a cubic relationship.
So, following @Panamon_Creel, meticulously clean your build plate with soap and water, feel free to use glue (I prefer to use glue stick, dilute it with a wet towel, swirl around the plate until invisible and then let it dry to form a nice thin and even coat), then print with a brim (for the first layer only, you can also increase the build plate temp for even better bonding above the softening temp. But please use a glue/release stick in this case: They fulfill both functions), with smaller layer heights and, if warping/curling is still too strong, slow down.
You could also play around with cooling settings but I have found that to be hit and miss even on an X1.
Thank you for your answer!
I will report tomorrow with my next print.
Report:
After adding the brim, when needed because not every model is prone to it,and lowering 5 degrees the bed temperature I have no warping issues anymore.
I was printing more the last week than the last 5 months with my previous Ender 3v2 thanks to the painless usability of the printer.
A couple things could be causing this warping issue. The first is the PEI plate. I had to wash mine down with soap and water and rinse it VERY well with HOT water. Dry it off while it is still hot from the water with a CLEAN towel. Set it aside to dry and wipe off with some 90% isopropyl alcohol. Let it dry.
Apply 2 coats of sticky hairspray, one X axis and one Y axis. Let it dry.
When you make your next print, make sure your filament is DRY. Put your filament in a 1 gallon zip lock freezer bag with an ample amount of desiccant and leave it overnite to make sure the filament is dry. I think you will be pleasantly surprised. The comment about the brim is very much worth considering.
I learned this one the hard way. I just finished my 8th 10 inch container without a redo on the PEI plate with no warping problems.
I too, just got my A1 and I like it a LOT.
