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What are your experiences Printing PLA and PETG together in a single Print? (lemmy.blahaj.zone)

submitted 3 days ago by [email protected] to c/3dprinting

4 comments fedilink hide all child comments

I'm pretty new to 3D Printing and just learned that apperantly PLA and PETG don't like sticking together. I have printed with both of them before without much issue tho?

Given that I plan on doing a Massive 4 Colour Print for Christmas, which will use Black & White PETG HF, Red PLA Basic and PLA Metal, I was wondering if this really is as Worrysome as people make it out to be? What are your experiences with mixing Filament Types like this?

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[–] Zomg 11 points 3 days ago* (last edited 3 days ago)

PETG and PLA will not hold together.

Infact. PLA makes great support material for PETG and vice versa because of how easy the support removal process is.

https://youtu.be/8oWAacnuViU?si=oCJMFA2nu6vLiL-r

[–] [email protected] 13 points 3 days ago (1 children)

In my experience, they really don't stick together. They stick enough to print, but if you exert pressure on the part they will delaminate.
It works great to print the support in Petg, and the part in pla (or the reverse)

[–] [email protected] 6 points 3 days ago

Nothing to add. Those two are great support materials for each other because they don't stick well

[–] [email protected] 3 points 2 days ago

If you have to mix it use mechanical interlocking parts. Like a PLA cavity that is filled with PETG. The PLA & PETG won't connect/bond but due to the mechanical design, it will still hold together.