Printing Large Objects on 3D Printer without Warping

OK, so yep... the manufacturer recommends no bigger than 10cm cube for a part printed in ABS. Even at that size, you'll often get pretty bad warping.
...unless of course, you design your parts to not warp.
Here's how I made some 20cm+ long parts.

You don't have to make the holes nearly as big as I did. ....just big enough to break up the layers. I happen to also want to save material by having bigger holes. So... there ya go.

Category:

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Tags:

• Jaimie
• Mantzel
• 3D
• printer
• bfb
• 3000
• print
• large
• objects
• big
• warping
• problem
• solution
• solved
• solve
• fix
• trouble
• shoot
• warp
• yt:stretch=16:9

[JMEMantzel]

Why do people keep telling how to "fix my problem".  Didn't I just make a video solving it? ....without using extra plastic.... or building a heated bed which uses more power.... or using more consumables like solvents and silliness like that. Sheesh.

[windsunh2o]

Could you also try a rough or porous print base to help the 'raft' stick?

[JMEMantzel]

@windsunh2o rough base would help, but..... it might kinda permanantly glue it to the bed!

[JMEMantzel]

Actually, I thought it was kind of cool that now I don't need to make a heated bed. Use brains to save energy. :-)

[windsunh2o]

Problem solving. Manufacturers instructions be damned! Hope youre having an awesome time in England! Have some kippers for us Yanks.

[JMEMantzel]

@windsunh2o Oh... whats a Kipper. I can't remember now. I've had fish n chips, bangers n mash, cornish pasty's, crumpets, and a few other funny sounding things, but I can't think of what kippers are. I spose I better just go find some.

[Blacklemon67a]

that's really clever man :D

[forfluf]

I wonder if a slightly curved surface higher in the middle lengthwise would offset the curving once cooled? I would have so much fun with a 3D printer.

[RepRapPro]

You are doing a great job 3D printing! Is that a pro model printer? How much was it?

[a2zhandi]

@JMEMantzel I was going to offer my 2 cents. However, for once, I'll keep my big mouth shut.

[a2zhandi]

@JMEMantzel ah yes, pasties were invented in england if I remember correctly. By the wives of miners. (I grew up in a small mining town)

Not many in the US know what one is.

[muddymuddymuddmann]

SUGGESTION/ QUESTION. I KNOW IT PRINTS IN LAYERS, BUT I HAD A THOUGHT. IF THE FIRST 2 cm OF BOTTOM LATER WAS TO BE PRINTED, AND 1 cm OF THE NEXT LAYER. THEN ANOTHER cm OF BOTTOM LAYER AND THE NEXT cm OF THE SECOND LAYER WHERE IT LEFT OFF. KIND OF LIKE BUILDING WITH BRICKS. THE LAYERS BUILD LIKE STAIRS, AND THE PRODUCT BUILDS UP AND SIDEWAYS SLOWLY MAKING IT TO THE END. I DONT KNOW IF THE PROGRAM AND PRINTER IS CAPABLE OF THAT. BUT IF IT IS, THEN I KNOW THAT WOULD SOLVE THE WARPING, I HOPE.

MUDDy

[shodanxx]

those printed parts look amazing

also I vote heated bed if the problem reappears on a different part design !

[daytonatrbo]

My immediate thought for a solution to this problem would be to heat the part as uniformly as possible while printing. By keeping the whole part as close to the melt point (without melting obviously) you will minimize the thermal stresses. Once the part is complete, remove the heat and it should all shrink at a more uniform rate.

[goodcat1982]

Well aren't you a clever boy :)

[angestalt]

@JMEMantzel - according "fix your problem"

changing the design to fit the technical possibilities

vs.

improving the technical possibilities until the design comes out as intended.

in general i´d prefer the later. that might be why...?

but i agree; breaking-up-the-horizontal stresses is a very smart approach. especially because you end up with a better part (less material) at the end of the process. thank´s for sharing those tips & insights