How to Stack Multiboard Prints in Bambu Slicer PLA with PETG

[@MrBoowashere]

Nice. Never thought about doing that. Great video.

[@pirobot668beta]

I've been using TPU as a first layer, PETG above that. Nearly impossible to separate TPU from PETG. My Vase-mode prints now have a 'bumper' on their base...non-skid and all that. Printed on a holographic build plate, black TPU makes a near perfect copy of the embossing.

[@frankcarlsen4921]

That is a very neat trick. Thanks for sharing.

[@MrCheddah13]

Man this is amazing! I have some rather simple parts that are just barely too big to fit two on one plate so I am going to try this soon! Great Video!

[@crazyethanyeahyeah]

Thanks for sharing the informative video. I was wondering if this would work with other slicers and machines like PrusaSlicer?

[@MrExo_3D]

Bambu Studio is basically PrusaSlicer. they are based on same code base. so should work fine. havent tried others.

[@mongoro]

How much did you use for flushing amount? I've found that I have to max it to 800 to be sure there is no weak points from contamination.

[@mwinner101]

Awesome! Great tip.

[@DyoGTS]

I just stack them 0.2mm (or whatever you normally use for you Top Z distance) and print them without a support layer and pull them apart without any issues and zero cleanup. Never had any problems with reliability

[@MrExo_3D]

I tried that a few times too. But had more issues then success

[@Alex-yu3ik]

For those having trouble / just cannot get the supports to show: Instead of doing the settings on "Global" use the settings for the merged "Objects". Worked for me

[@willemselten]

But why don’t you print the second part just completely with petg? Then there would be nothing to throw away. If you need to print pla I understand. If it makes no difference then you could print the parts pla, petg varied.

[@trappedinroom1014]

Oooo…great idea with zero waste! Love it! We’re new to 3D printing (we’ve got a Bambu lab) so we have a long list of things we’d like to print, so being able to stack them and leave it printing lots of matching plates in one go seems like a game changer (or an awesome efficiency hack). 🙂👍🏻💕

[@EricLS]

Feel like inverting the materials is the way to go. I'm new to 3D printing, but I am surprised multiboard recommends PLA when everything ever says use PETG for structural stability

[@drewbeirn7704]

I say, use the right plastic for the right application. There is a whole world of different plastics and blends of plastics that have their own unique properties and applications. There are lots of videos out there that can point out the pros and cons of each polymer. As well as good applications for them.

[@HughMessenger]

PETG isn't really "stronger" than PLA, rather it has different qualities that suit some use cases. It is more flexible and impact resistant, but that isn't necessarily what you want for Multiboards, where PLA's stiffness is often better suited. PETG can also be more finicky for dimensional accuracy and shrinkage, which can be an issue for interconnecting parts with tight tolerances. That said, PLA can sag and deform under constant high load, especially in hot ambient temps, so if you plan to hang heavy items in a hot location, PETG might be better. Bottom line, if you are just hanging light stuff in climate controlled space, PLA works great, and is easier and quicker to print.