Waves and warping 3d print ABS

[jetengineering 1]

Hi All, 

 

Thanks for reading and helping, have a few nightmares with a 3D printer I bought secondhand. 

 

There's a few issues, 

There's a slight clicking noise, 

The ABS prints are warping

There's a Ghosting on the first layer

 

Any clues would be really appreciated. 

 

James

 

[gr5 2,173]

Waves (ghosting?) on the bottom layer are mostly normal.  I wouldn't try to fix those as fixing those will cause your parts to warp even more.

 

I strongly advise against ever using ABS.  It's an inferior material that is difficult to print.  If you need something that can handle higher temps I can recommend other materials - what is the max temp you need to go up to?  What is the part used for?

 

Warping - yes this is common with ABS.  Are you talking mostly about the bottom layer?  Well firstly you need to add some brim.  A part that large with those square outer corners is a problem.  If you can't round the corners then add "brim" in cura settings.

 

Much more detailed info about how to prevent warping in ABS here - by the way you really want the bed at 110C but that's hard to achieve without covering the front and top of the printer.  Your "squish" looks good though.

 

Sorry my video is so long but it has a lot of critical information:

 

 

 

[jetengineering 1]

Thanks ever so, will take a watch now. 

 

The part is a case for a 5G Router for a maritime system. 

 

The Tabs are my added "Brim" as I've got to use the whole print bed basically. 

 

I've covered the door and sent the temp up, cheers for the tips! 

 

 

[gr5 2,173]

Oh.  Make those tabs rounded then.  You don't want all the lifting power to be able to be on one point (the tip of the corner). 

 

[jetengineering 1]

Will do next print, it's 95% sorted with just the temperature change and the bubble wrap "door". 

 

Some minor lifting but very little comparatively. Thanks for your help. 

 

James 

 

[gr5 2,173]

You lowered the fan speed as well?

 

So even if you have zero splitting you probably still have weak layer adhesion.  A good test is to break a test part.  If it breaks along layer lines (it shouldn't) then you have weak layer adhesion.  It should break "randomly" and ignore layer lines for the most part.

 

Most ABS prints are like this as users don't know how important layer adhesion is.  So the part looks strong.  It feels strong.  Until the moment it breaks.  Along the "grain".

 

 

[jetengineering 1]

Yes got the fan lowered and it's worked a treat thank you.