I've been curious about the various UV/Laser printers in (or coming into) market that use liquid resin. I've seen the samples of the [Pegasus Touch](https://fslaser.com/Products/View/1), [Form1](http://formlabs.com/products/materials/), and the [Carbon3D](http://carbon3d.com/) as examples. I like the specifications of the quality that machines can put out. However, in my experience with FDM printing, there almost always seems to be something not quite right about the print.

So, what are some major maintenance considerations for these types of 3D printing? Also, specifically, are supports and overhangs as much an issue in these types of printers as with FDM/FFF?

Here are some things I consider major maintenance considerations in FDM:

* Extruder Clogging
* Build platform conditions (i.e. levelness, clean, type of tape, bubbles in tape)
* Variances in material quality (i.e. diameter, purity, physical conditions)
* Mechanics of the machine (i.e. belts, rods, gear teeth, etc.)
* Build environment (i.e. ensuring steady temperature in the build environment, minimize draft)

I'm not necessarily looking for printer recommendations, more so technical insight on the technology.