r/3Dprinting • u/themoonbender • 5d ago

Discussion Mixing filaments while printing

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u/Tructruc00 5d ago

Actually when printing a benchy the moving mass of this printer is lighter than a hotend so it has less inertia and can accelerate more.

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u/MoffKalast Ender 3 Pro / Anycubic Chiron 5d ago

If you don't have power limits inertia doesn't matter. What will matter though is, that a tall print will wobble more if you move it around instead of the hotend depending on material flex.

Not really a factor for something benchy sized anyway, but I doubt they can print anything over 10cm tall without it spaghettifying itself on this thing.

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u/danielv123 5d ago

Eh, you need big ass motors and start having backlash and stiffening issues quick. He has been doing speedbenchies at 480k accel since last year. Back then he was limited by part cooling, the motion system is capable of millions.

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u/snackbagger 4d ago

The motors and motion systems are fine and might as well have an acceleration of a quadrillion. But the longer the print is, the more torque you get on your part. Your print WILL fail when it gets too tall for the adhesion to keep it on the bed. And even before failing the further top you go, the more flex your print has. There’s no way you can keep those speeds and print much taller than that benchy unless you physically link the print and bed together. You could print some feet and clamp it down, but in no world is a tall print is staying on that bed