CoreXY

We've got the M-Box.

It'll be a small children-centered CoreXY 3D printer.

We've got the Ender-3 V3 Mega, a large format 3D printer.

Mega.

I feel like we see them at those trade shows randomly.

There will be a toy box something, something, or some little kids printer.

Um, and so this one, I'm intrigued if the hardware is good, like if they make this basically a Voron V0 or a Sovol, maybe there's a Sovol 0 as well, like just a small CoreXY, put a good extruder in there.

This could be a really sweet little printer.

Why did it just work? The sources break this down into four major pillars basically.

Let's start with the physical frame of the machine itself, a design known as CoreXY.

To understand why CoreXY was such a leap for a consumer machine, w- we have to look at the older style of printers, which are commonly called bed slingers.

I always picture a bed slinger like trying to sprint as fast as you can while carrying a tray completely full of drinks.

That's a great analogy.

The physics were just working against you.

Your speed was artificially capped by the sheer mass of the moving bed, plus whatever heavy plastic object you were printing on top of it.

But in a CoreXY machine like the Bambu X1, the bed only moves up and down incredibly slowly, dropping layer by layer like an elevator.

Mm-hmm.

Replacing a tool head on a, um, CoreXY is pretty easy.

Although-

Yeah

Yeah

... and then you can get to pretty much every...

Like, the good, well-designed ones are easy enough to repair, similar to CoreXY printers now.

Yeah.

Mass and inertia are the enemies of precision.

CoreXY machines bypass this entirely.

The part stays completely stationary on the horizontal plane.

Because the printhead is incredibly light compared to a heated metal bed and a glass plate, the CoreXY motors can change directions instantaneously without introducing those heavy vibrations into the frame.

So tall, delicate models print beautifully because they are just slowly lowering into the chassis.

Precisely.

I have absolutely done that.

We all have.

So how do you fix that if you want to print fast?

You move to a different motion system called CoreXY.

In a CoreXY machine, the bed only moves up and down, slowly.

All the fast, aggressive X and Y movement is handled entirely by the incredibly light print head at the top using this crisscrossing system of belts

So because the heavy bed isn't flying around, it can print way faster without that ringing effect

Mm.

A bed slinger might run at a hundred to two hundred millimeters a second.

A modern CoreXY machine can do several hundred millimeters a second easily

And that is the fascinating part about the X1C's legacy.

It really brought industrial-level features to the hobbyist, and it built all that around a fully enclosed CoreXY system.

Remind me, CoreXY just means the print head moves on the X and Y axes while the bed drops down on the Z axis, right?

Exactly.

And it features a 256 by 256 by 256 millimeter print volume.