Prusa Research Original Prusa i3 MK2, Handbook

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3.2 Disclaimer
Failure to read the Manual may lead to personal injury, inferior results or damage to the 3D
printer. Always ensure that anyone who operates the 3D printer knows and understands the
contents of the Manual. We can not control the conditions in which you assemble the
Original Prusa i3. For this and other reasons we do not assume responsibility and expressly
disclaim liability for loss, injuries, damage, or expense arising out of or in any way connected
with the assembly, handling, storage, use or disposal of the product. The information in this
Manual is provided without any warranty, express or implied, regarding its correctness.
3.3 Safety instructions
Please be very cautious during any interaction with the
​ printer ​ . This printer is an
electrical device with moving parts and hot­temperature areas.
1. Device is for indoor use only. Do not expose the printer to rain or snow. Always keep the
printer in a dry environment at a minimum distance of 30 cm from other objects.
2. Always place the printer on a stable place, where it can not fall or tip over.
3. The printer supply is household power outlet 230 VAC, 50 Hz or 110 VAC / 60 Hz; Never
connect the printer to a different power supply, it may cause malfunction or damage to the
printer.
4. Place the power cord so you can’t stumble on it, or step on it or otherwise expose to any
damage. Make sure that the power cord is not mechanically or otherwise damaged. Stop
using damaged cable immediately and replace it.
5. When you disconnect the power cord from the socket, pull the plug rather than the cord to
reduce the risk of damage to plug or AC outlet.
6. Never disassemble the printer power supply, it does not contain any parts that could be
repaired by an unskilled worker. All repairs must be provided by a qualified technician.
7. Do not touch the nozzle or heat bed when the printer is printing or is warming up. Note
that the temperature of the nozzle is 210­300 °C (410­572 °F); heatbed temperature can
reach over 100 °C (212 °F). Temperatures above 40 °C (104 °F) can cause harm to human
body.
8. Do not reach inside the printer while it is still in operation. An injury may be caused by its
moving parts.
9. Prevent children from unsupervised access to the printer even when the printer is not
printing.
10. Do not leave the printer unattended while it's still on!
11. Plastic is being melted during printing which produces odors. Set up the printer some
place well ventilated.
3.4 Licenses
Original Prusa i3 MK2
​ printer ​ is a part of the RepRap project, the first open source 3D ​ printer
project free to use under a ​ GNU ​ ​ GPL ​ v3 ​ license ​ ( ​ www. ​ gnu ​ .org/ ​ licenses ​ / ​ gpl ​ ­3.0.en.html ​ ). If
you improve or alter any part of a ​ printer ​ and you are willing to sell, then you have to publish
the source codes under the same ​ license ​ . All 3D­printed elements of the printer that can be
improved upon can be found at ​ http://www.prusa3d.com/prusa­i3­printable­parts/ ​ .