As gr5 says, in the Ultimaker² are a lot of improved components. We intended to make it as userfriendly and reliable as possible. This means less issues, and less calibration.
When the Ultimaker² is build and all components are at its place it is almost ready to use.
There still is the bed levelling, but we have been working hard to make a very user friendly interface that helps you level the bed. With the heated bed and new Z-stage the bed is much more stable and you don't need to relevel it every other couple of prints.
The assembly is done by experienced builders and we always have a thorough quality check before it is being processed.
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gr5 2,224
The biggest problem with ultimakers for new users is bed levelling and the um2 hit this issue very well. For one thing you can calibrate the level at the factory and it won't change through shippings! Amazing. Also it has a new wizard and turning the screws is so much easier I think. Right now when I put the screwdriver on the screw on the bed, just the weight of my pressing gently down on the screw shifts the bed down.
There is a belt tightener built into every block, and setscrews are hopefully tighted real well also so the pulleys won't slip (although this might be the most common problem - who knows!?).
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