3ntr A4 V2 User manual

A4 V2
QUICK START
Rel 1.01

Preface
Congratulations for your purchase!
Your printer has been carefully engineered to bring you years of trouble-free work:
this manual will help you the get to know everything about its use and
maintenance.

Important safety advice
Your printer has been built with user safety as main concern, yet it must NOT be
used by individuals with reduced mental or physical abilities.
This printer is not a toy, and printing area must be kept locked in presence of
children or people with serious mental problems.
•The A4 printer is meant to be used by fully responsible and
knowledgeable people, as several safety issues must be considered:
•Risk of burns: hot surfaces are involved into the printing process. To
minimize risks, be sure not to access any part inside the printing area
while printer is working. Once printing process is finished, wait until
printed part(s) cool down to room temperature, or use protective gear
(gloves) to remove finished prints.
•Risk of pinching – machine can suddenly start: even if the power of
actuators is low, the speed is high enough to hurt. Don't access machine
until printing process isn't completed -or- the machine is remotely
actuated (i.e.: using a print server).
•Risk of fire: don't use any flammable substance to clean the machine
inner parts when printer parts are warmed.
•Risk of toxic fumes: be sure to use recommended settings for the
polymer(s) being used. Overheating may develop toxic fumes. Use
printer in a well vented room.
•Electromagnetic compliance: this is a class A product. In a domestic
environment this product may cause radio interference in which case the
user may be required to take adequate measures.
•Always turn OFF power before attempting any maintenance and wait
until the printer parts are cooled at room temperature.

Unpacking
We packaged your printer with the best solution, to withstand with rough handling
usually involved with international freight. Therefore, despite our efforts, if you are
being delivered a damaged package you should always refuse delivery or put
your remarks on the delivery bill.
Package usually consist of:
•Printer
•AC power cable
•USB cable
•printing tray (PET surface)
•filament spool(s)
To unpack machine:
•Remove plastic straps and carboard cover.
•Remove packaging foam/bubbles: don't use cutter blades!
•Remove wrapping film
•To open the door, turn counterclockwise the door knob
•Remove the packaged items inside
•One package consist of printing plate + power cable + Usb cable
•Other package includes spool holders, filament spool(s), door keys
•Check that no plastic/paper/adhesive tape parts are left inside the printer

Installation
You need:
1. A sturdy table or desk
You need a solid surface that will be strong enough to support the printer
and withstand with the vibration involved with the printing process.
2. 100-220 V AC wall socket
3. your PC (optional, as you can print remotely via SD card or print
spoolers, BUT at least at the beginning you should use a PC)
Procedure
1. Place your printer on your desk.
2. Open the printing compartment door (turn knob counter clockwise)
3. Place the printing tray on the print surface. It will magnetically snap at the
correct position.
4. Close the door.
5. Connect the printer to the AC power with the supplied cable.
6. Turn on the power. LCD display will light up (white letter on blue
background)

Using the printer with your computer
Installing printer software drivers
Printer drivers are needed to let your USB port talk to printer USB port.
Newest operating systems will load and configure the drivers for you: if you are
using older systems or your installation is faulty, the drivers for
Windows/Linux/Mac PCs are available here:
http://www.ftdichip.com/Drivers/VCP.htm
Please refer to above web site for installation instructions on your specific PC
architecture.
If you need longer USB cable than the one supplied with your printer, be sure to
buy a good quality one: cheap and unshielded ones will cause intermittent
problems!

Host software
The host software can be used to perform all required duties on printer, as manual
axes movement, heaters performance analysis and setup, placement of parts on
printer plate, slicing and running printing jobs.
We recommend Repetier Host, being the most complete yet easy to use solution
to accomplish above activities, and the fastest way to interface with Repetier
Firmware running inside our printer.
This manual will refer to Repetier Host as reference program for printer use and
administration.
Please understand that we don't forbid you to use any other software solution: we
will just be offering help and support only for Repetier Host software.
Download your free copy here:
http://www.repetier.com/download/
Please refer to above web site for installation instructions on you specific PC
architecture.
If you will like Repetier Host, please donate:
http://www.repetier.com/donate-or-support/
Supporting the development of the software will let you be active part of the
movement and will be financing improvements to the software tool you are
using!

Host software setup
To access Repetier host configuration menus you simply press click on the upper
right “gears” icon.
You will reach the following menus (shown in English, but you can choose among
many languages):
Port: leave the port you use to connect to printer
Baud rate: set it to 250000
Other parameter must be left unchanged at default values (see fig.1).
Fig. 1: Connection parameters

We recommend to set printer defaults as from above figure.
You may want to un-check the last three check boxes if you are using printer in a
continuous production setting (avoiding losing time when machine cools down
between print jobs).
You may opt to always leave on your heated bed (unchecking the “disable heated
bed after job/kill” option): no serious issues with this, other than having higher
electricity bills.
If you choose to always leave on your extruders (unchecking the “disable extruder
after job/kill” option) BE CAREFUL, as if you leave your printer unattended for
hours you may end with degraded polymer inside your nozzle, and with some
polymer you may jam your extruder.
Fig. 2: Printer parameters

Above values must be entered precisely as from above screen capture: feel free to
choose names and colors, but please be sure to enter correct numerical data !
Fig. 3: Extruder control