8. Cleaning and care
8.1 Software updates and network connectivity
NOVA’s software and firmware update frequently to account for feature updates, improvements, security, and any potential bug fixes.
An Internet connection is required to receive auto-updates to NOVA’s firmware. If you are not able to regularly update NOVA, it is possible that the functionality may be compromised, so we ask that you ensure you are able to connect your machine to the Internet. If you are not able to connect to the Internet, check step 3.6 Connecting NOVA in offline mode or contact Voltera Support at at [email protected] for assistance.
8.2 Compatible cleaning agents
NOVA functions best when working surfaces are cleaned frequently. Voltera recommends
using a dilution of isopropyl alcohol and a lint-free wipe, where a cleaning agent is required. Take care not to use cleaning agents that could cause a hazard as a result of a reaction with NOVA or other materials used in your application.
When working with materials and cleaning agents not described in this manual, it is the user’s responsibility to ensure that such agents do not present a hazard on their own, or as a result of their reaction with NOVA components, or the inks and substrates used in your application.
If you are uncertain of the compatibility of your cleaning or decontamination agents, contact Voltera Support at [email protected].
8.3 Suggested third-party tools and software
NOVA allows you to pattern flexible or rigid substrates with your materials of choice. However, you may need programs, processing equipment, or additional materials to achieve the full functionality of your device. Based on your discretion, we recommend making any arrangement necessary to access the following:
8.3.1 Consumables and equipment
Curing systems: Whether thermal, UV, or other, you should be able to post-process your materials as necessary.
Functional materials: NOVA is designed to work with a wide variety of inks and substrates, however, it is your responsibility to review relevant safety data sheets (SDS), technical datasheets, and use appropriate personal protective equipment for your application.
Luer-lock nozzles: If your application requires it, the Smart Dispenser can accept any luer-lock nozzle up to 30 mm in total length.
Cleaning solvents and sonicating bath: The Smart Dispenser’s pressure sensor may require cleaning. A sonicating bath is the only acceptable cleaning method.
Any other equipment or consumables as deemed necessary by you to accomplish your goals.
8.3.2 Design software
NOVA requires Gerber files as the standard input format. The Gerber specification is the standard implementation for electronic design files, and Gerber files can be exported natively from any electronics design software.
If you do not have access to electronics design software, we suggest downloading the free version of Autodesk EAGLE or KiCad. There are many free resources and tutorials readily available online which should allow you to quickly learn how to design and export Gerber files, if required. Voltera also has Gerber export guides for EAGLE, KiCad, and Altium available on the website.
8.4 Clean the pressure sensor when not in use
NOVA is intended to print high-quality patterns with a variety of screen-printable inks.
NOVA comes with three included pressure sensors. The pressure sensor must be cleaned under the following conditions:
Clean the sensor if it is removed from a cartridge for an extended period (longer than a quick switch-over).
Clean the sensor if you want to dispense a different material or a different batch of the same material.
Clean the sensor if a nozzle is removed for an extended period (longer than a quick switch-over), exposing the material in the sensor to air.
Follow Voltera’s online Pressure Sensor cleaning guide when cleaning the pressure sensor. Never insert anything other than the included nylon cleaning brush into the pressure sensor.
8.5 Protect the nozzle
The golden rule of high quality dispensing is to protect the dispensing nozzle. If the nozzle tip is dented, bent, broken, or contaminated with dry ink, print quality will suffer. To ensure optimal performance, follow the guidelines below:
Gently wipe the nozzle with a lint-free wipe to remove material build-up before use.
Dispose of nozzles before storing your dispenser or materials.
Use a new nozzle for each new material or after storing the dispenser.
A clogged nozzle can be identified by either no or inconsistent material flow. A clogged nozzle can be the result of many factors including improper material storage, expired material, or a damaged nozzle.
8.6 Inspect pogo pins and electrical contacts
The pogo pins on the Smart Dispenser must be clean for good operation. Inspect the pogo pins and electrical connections before starting any procedures. If there is any residue or dirt, wipe them down with a small amount of isopropyl alcohol on a lint-free wipe.
8.7 Wipe down the Calibration Plate
Wipe down your Calibration Plate immediately after completing the flow check or calibration procedures. Failure to do so will result in dried ink residue which is difficult to remove. Wiping the plate with isopropyl alcohol and a lint-free wipe will work for most inks, but consult the material’s safety data sheet (SDS) or technical data sheet for cleanup solvent notes.
8.8 Clean the O-ring on the Smart Dispenser actuator
If the O-ring has ink residue, this can affect your ability to reach or relieve pressure during dispensing. Inspect the Smart Dispenser before printing, and clean the O-ring if necessary with isopropyl alcohol to maintain a good seal.
8.9 Protect the Smart Probe stylus
The probe stylus can fracture if it is dropped or roughly treated. Take care when handling the probe.
8.10 Keep Vacuum Table clean of ink
If conductive ink gets into the pores of the Vacuum Table, it can clog and prevent suction. If ink gets on the Vacuum Table, wipe with solvent quickly and thoroughly. If the pores are clogged, contact Voltera Support at [email protected].
8.11 Hold the modules when releasing the locking lever
When the locking lever on the Module Hub is released, there is nothing supporting your modules and they may drop off the hub. This can break your nozzles or your Smart Probe stylus.
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