adapto is cleaner.
做那么大,加热床那么小
good job!but May be you need a large heatbed
The beige thing off to the left of the frame is a 300mm heated bed.
Is that a PCB heater or a silicone one?
Why did you build a CUBE, when you have a Y-axis (or X depending how you look at it) moving bed? The prism design of the rep-rap is superior for that type of printer.