Dental Site Prep Guide

Utilities

26min

Ventilation and Air Quality

View from below of ventilation ducting in a factory space


Requirements

Ventilation equipment is not provided by Carbon and can be a long lead item. Therefore, planning and installation should be started early in the site preparation process.

You must have either built-in mechanical ventilation or a stand-alone unit that meets the requirements below before scheduling your printer installation.

Item

Flow Rate Requirement

Additional Requirements

M1 / M2 Printer

Minimum Flow Rate 34-51 m³/hr (20-30 cfm) per printer

Printer exhaust outlet: 4” diameter exhaust on the back of the printer

M3 / M3 Max Printer

Minimum Flow Rate 34-51 m³/hr (20-30 cfm) per printer

Printer exhaust outlet: 4” diameter exhaust on the back of the printer

Post-Processing Area

85 m³/hr (50 cfm) per wash area

Adjustable snorkel or fume hood

Optional: FP3D Requirements

For customers that will use FP3D (Pre-Release Access) resin, a Yamato convection oven is necessary. See facility requirements below.

Item

Flow Rate Requirement

Additional Requirements

Convection Oven

34 m³/hr (20 cfm) per oven

  • Convection Oven exhaust outlet: 4” diameter exhaust on the top of the oven
  • High-temp hose

Convection Oven Ventilation Example

Your Onboarding Consultant will ask for a picture of each ventilation connection before scheduling the installation. We recommend a central line of ventilation with multiple drops, each with an installed blast gate.

Rear view of oven with adapter
Rear view of oven with adapter


Additional Oven Ventilation Notes

Your oven is equipped with an adapter to ensure flow rate is not too high. Please attach the oven to the ventilation system using the provided adapter, which is shipped inside the oven.

  • The adapter is a flanged ventilation duct with an outer ring held with three wing nuts that should be installed on top of the oven. You should connect it to the oven first so you can easily connect it to your 4-inch round exhaust duct.
  • Do not seal the outer ring (a common customer issue).
  • This arrangement pulls air from the room rather than sucking heat out of the oven, but in doing so also removes oven fumes.
Document image


As oven exhaust temperatures can exceed 220 °C, use metal duct or metal duct hose, plus a hose clamp, to withstand the high-temperature air for at least 10 feet to allow for sufficient cooling. You can also use a flexible hose with a high-temperature rating, such as the silicone hose from McMaster-Carr.

Document image

  • Once the oven has been installed and ventilated, please conduct temperature checks, using any precision oven thermometer, at 60, 120, and 220 °C to ensure your oven is maintaining the proper temperature.

Facility Air Quality

  • Printer must be installed away from sources of particulate matter: smoke, dust from grinding, milling, sanding, or polishing, or any other known sources of dust or air contaminants (internal optical equipment is highly sensitive and will degrade when exposed to significant pollutants).
  • Room where printer is installed should have air filters to maintain air cleanliness.
  • Above requirements do not apply to post-processing areas.

Ventilation Options

  • Stand-alone units (fume extractors).
  • Built-in mechanical ventilation.
  • For other questions about your specific ventilation situation, contact the Onboarding Team.

Total Ventilation Capacity

  • The minimum ventilation requirement for a single M1 / M2 or M3 / M3 Max printer lab plus the post-processing area is 119 m³/h (70 cfm).
  • Building capacity for plenty of ventilation is a good idea for your Carbon lab because excess ventilation will make it easy to accommodate more printers and adopt future products or accessories without the need to re-engineer your lab.

FAQs and Additional Information

How do we know if our installation site has adequate air quality?

For most installation sites, air that is filtered and clean enough for workers not to wear dust masks will likely be adequate. In addition, the printer must be separated from any machines that emit smoke, dust, mist, or particles. For additional assurance, air particle counts may be tested to meet ISO 8 classification, which provides acceptable particle limits for Carbon printers.

What are the ventilation options available?

There are two options to consider when planning ventilation for your printer. Either option must meet the following requirements:

Mechanical Ventilation

  • Mechanical ventilation is the intentional fan-driven flow of outdoor air into a building. Mechanical ventilation systems may include supply fans (which push outdoor air into a building), exhaust fans (which draw air out of the building and thereby cause equal ventilation flow into a building), or a combination of both.
  • Ductwork is required along ceilings and/or walls to create the pathway for air to be vented to the outside of your building.
  • If you don't already have a mechanical ventilation system, you may need to consult with a contractor about building such a system for your lab.
  • Mechanical ventilation is a long lead-time item. If you choose to proceed with mechanical ventilation, Carbon recommends that you begin this step early in the site prep process.
Example of mechanical ventilation with adjustable snorkels to position over workspace.
Example of mechanical ventilation with adjustable snorkels to position over workspace.


Stand-alone Ventilation or Fume Extraction

  • A fume extractor has two flexible hoses to accommodate up to two locations (the printer and the post-processing area).
  • Fume extraction costs less than mechanical ventilation and is easy to install.
  • If you have questions about ventilation, contact the Carbon Onboarding Team.
Fume extractor
Fume extractor


Can I use a stand-alone ventilation system (fume extractor) instead of mechanical ventilation?

Yes, most dental customers purchase a fume extractor instead of installing mechanical ventilation to meet the site prep requirements.

However, there are several instances in which you cannot use a fume extractor.

The fume extractor is not compatible with the following:

  • Non-Dental resins (Carbon 2-part engineering resins)
  • Any oven other than a UV Cure unit
  • Multiple M Series Printers (you will need more than one fume extractor)

For more information on fume extraction, contact the Carbon Onboarding Team.

What are the trade-offs between mechanical ventilation and stand-alone ventilation?

Installation of mechanical (traditional) ventilation is costly and time-consuming. However, it is a more effective option if you are currently using or plan to use multiple printers or additional equipment that requires ventilation.

  • The Fume Extractor is recommended for single-printer sites that do not plan to add additional equipment. It is relatively low-cost and will meet appropriate health and safety requirements.
  • Carbon has validated the following stand-alone ventilation system: Sentry Air Systems Model # SS-400-FSD.

Do I need a contractor for traditional/mechanical ventilation?

In most cases, you may want to use a contractor to install mechanical ventilation. A contractor can help ensure that your ventilation system meets all local and regulatory codes, as well as Carbon-recommended specifications.

Why does Carbon have a ventilation requirement?

Carbon printers require ventilation because liquid resins and solvents are classified as hazardous materials. Without ventilation, your facility could be exposed to fumes that could pose a health risk for your employees. For more information regarding health and safety, contact your local regulatory agency.

Electricity

Power plug in a wall socket in a lab


Requirements

You will be required to supply power to the following equipment and accessories:

  • M1, M2, M3, M3 Max Printer(s)
  • UV Curing Unit(s)
  • Orbital Shaker (for cleaning parts)
  • Optional: Convection oven used to cure FP3D resin

Item

M1/M2 Printer

M3 Printer

M3 Max Printer

Voltage

100-240 V 50/60 Hz single phase

120-240 V 50/60 Hz single phase

120-240 V 50/60 Hz single phase

Mains supply voltage fluctuations

±10%

±10%

±10%

Overvoltage category

II

II

II

Circuit Breaker

15 A dedicated circuit

15 A breaker on a dedicated circuit separate from ovens (Japan: 16 A breaker on 200 V dedicated industrial power circuit)

20 A breaker on a dedicated circuit separate from ovens (Japan: 16 A breaker on 200 V dedicated industrial power circuit)

Power Supply Cable

A regionally appropriate power supply cable will be supplied.

A regionally appropriate power supply cable will be supplied.

A regionally appropriate power supply cable will be supplied.

Socket type

Standard

Standard

NEMA 5-20

Item

All printers

Socket location

If using a Carbon-provided cable, the socket must be within 1.8 m (6’) of the power entry point on the printer.

Non-Carbon power cords

Note: Using an inadequately rated power cable can result in electric shock, arc flash, fire, or damage to the equipment.

UV Curing Unit Electrical Requirements

Item

Requirement

Dreve PCU LED

APM LED UV-Cube

See 3rd Party specifications: APM LED UV-Cube III Manual

Dreve PCU 90

See 3rd Party specifications: Dreve PCU 90 Manual

Dymax ECE 5000

See 3rd Party specifications: Dymax ECE 5000 Manual

Otoflash Curing Unit w/Gas

See 3rd Party specifications: Otoflash Curing Unit w/Gas

InLab Speedcure (Dentures)

Contact Dentsply Sirona Sales for more information

Information on Applications, Resins & UV Curing Units

Your dental lab may require more than one UV curing unit depending on the types of applications you will produce. To learn more about applications, resins, and specific UV Curing Units, see the Dental Applications handout.

Contact your Carbon Sales Director with any additional questions.

Optional: FP3D Requirements

Workstation/Product

# Sockets Required Place sockets near equipment to avoid trailing power cords.

Dedicated Circuit Breaker Required

Power Requirements (100-240 VAC and 50/60 Hz)

Convection Oven

1

Yes

14 A

Notes

  • The oven and printer should be on separate breakers.
  • Please consult with your electrician on how to best power the printer and accessories.

Other Electrical Requirements

Item

Requirement

Orbital Shaker

  • 100-240 VAC and 50/60 Hz; 1 A
  • No dedicated circuit required

Recommended Backup Power

Uninterruptible Power Supply (UPS) Notes



Electrical Requirements for Optional Accessories

Item

Requirement

Formlabs Form Wash

100–240 V 2.0 A 50/60 Hz 50 W

Formlabs Form Wash L

Input (NA): 100–120 VAC, 50–60 Hz, 1 A max Input (EU): 220–240 VAC, 50–60 Hz, 1 A max

For more information, go to Formlabs Form Wash.

Sockets & Amp Draw

You may need to supply power using at least 3 electrical sockets for an M1/M2 or M3/M3 Max Printer lab. For each additional Carbon product installed, you will require another electrical socket.

Note: International customers should contact Carbon for region-specific information.

Workstation/Product

# Sockets Required Place sockets near equipment to avoid trailing power cords.

Dedicated Circuit Breaker Required

Power Requirements (100-240 VAC and 50/60 Hz)

Printer

1

Yes

7.5 A for M1; 9 A for M2; 12 A for M3; 16 A for M3 Max

Part Washing Workstation

1 for orbital shaker



1 A

Curing Workstation

1 for APM LED UV-Cube III



2.5 A