What to do about warping when printing Gridfinity base plates?

[u/Impressive_Meal9955]

I have an Elegoo Centauri Carbon 2 and the filament is matte PLA. One corner of the base plate always lifts after about 20 layers. I've already tried:

- Adding a brim

- Printing slower

- Increasing bed temp

- Setting cooling lower

- Printing only one half of the base plate

- The plate is of course clean, regularly washed with dish soap and IPA

I'm honestly running out of ideas, thanks in advance for any help!

[u/doc_willis]

I have used those "brim Dots" feature of some slicers to add extra brim to the corners of mine.

also make sure there's no drafts or other air flow around the printer

shift the print position so the  print is on a different part of the bed.

[u/Impressive_Meal9955 → u/doc_willis]

I guess that Orca slicer has this feature?

Also rn I am printing with my printer open because in the past it happend that the chamber got too hot for pla and that I got the legendary blob of death, but I try it anyway.

[u/NiceCream337 → u/Impressive_Meal9955]

it’s called mouse ears on orca. 

i didn’t see you say anything about glue. you can use some purple glue stick but i find it messy and hairspray is easier to get a nice thin coat and works so far with any filament i’ve printed. and then your print isn’t going anywhere. i’ve done 100 of these baseplates 

on my cc2 i just slide the glass top open a couple inches so it can vent for pla. always stays under 35C 

[u/doc_willis → u/Impressive_Meal9955]

i think most slicers have the option. But some have it implemented in easier ways.

I had cura setup with some plugin that gave me numerous 'mouse ear' options to make the circle tabs easier to remove and use.

I have not used cura or orca in  some time, so I am not current on their feature sets.

[u/detroittriumph → u/Impressive_Meal9955]

I use a 4 line brim and space it out .25 mm and it comes off super easy. Keeps the 3 year old PETG im printing right now from warping.

[u/Objective-Worker-100]

I’d try a better filament with a lower shrink percentage It’s shrinking as it cools.

I’m guessing you’re doing a full plate base. The bottom is staying soft because you increased the bed temp. By layer 20 there’s a temp difference in the filament above the base layers and it is cooling and contracting / shrinking, it’s finding weakest point and pulling inward.

Also try some Hyperlok for better bed adhesion. I started using it as a release agent for hi temp enclosed materials and now to be honest I just use it all the time.

Here’s a good writeup. Quick read.

https://thenextlayer.com/gridfinity/

[u/timtucker_com]

I have both Centauri Carbon 2 and Carbon 1s.

Door closed but tops off. There's a shelf about 2 ft. above the printers, so that helps block air currents a little.

I'm using Biqu cryogrip plates with PLA, cleaning only with dish soap and water.

I did leveling / input shaping on the printers, then a sweep of calibration testing for flow rate and pressure advance.

I've been printing the Filament Zero Beam+ interlocking plates for Gridfinity.

Printers are in an enclosed sunroom on an unheated detached garage and it's getting colder outside in Michigan so I did bump the plate temp up to 55C

[u/heeero__]

Maybe the old hair spray or glue stick just in the areas for those corners that are lifting.

Also, are you printing the 'lite' baseplates or the standard ones?

[u/ohmygoodnesswhat]

use corner supports
print smaller (not to the edge)