2500 Wax Jewelry Best Practice: Maintenance

ProJet® MJP Printer Series Applications Guide to:

2500W jewelry best practice: Maintenance

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Environment/Facility Guide

Machines work best in stable environmental conditions. Its best to avoid high humidity, temperature fluctuations and dust particles. It is not ideal to have the printer in a machine shop or other similar environments.

A clean and appropriate room will help preserve the machines quality, and reduce the need for  service visits. Customer should be already informed before the installation of the facility requirement. This documentation must be presented and signed before every installation. Please refer to this documentation for the “normal” requirements:

http://infocenter.3dsystems.com/projetmjp2500/facility-requirements-guide

In this best practice document we highlight the “optimal” conditions to be able to prolong the life of your machine and increase part quality.

Temperature:

  1. Avoid putting machine in direct sunlight , the black covers will overheat quicker than you expect.
  2. Room temperature 20-22°C  is ideal to keep the machine cool to print successfully. This helps to keep the chamber temperature in optimal temperature range of 25-27°C.
  3. Humidity less than 50% will keep material in proper chemical integrity and keep at its desired mechanical properties.
  4. A clean room with no dust, or metal powder. Machines only have output filters,the machine will suck particles from the air and push it through the system.
  5. UPS uninterruptible power source needed, as with many Hi Tech devices power interruption can affect the mass memory device in the printer.

 

MACHINE GENERAL MAINTENANCE

To perform properly the machines needs the proper airflow to cool down the jetted material. 

The airflow is designed to move the air from the back top of the machine, push it through the top of the machine to the front; from here the air is filtered through the main carbon filter before exiting from the right bottom of the printer.

All air flow issues can cause a quality degradation.

Here some check schedule depending normally from usage environmental conditions:

General link: http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance

Schedule Maintenance Time Action Requested
Daily / Longer print jobs
  1. Check the Waste Bag (never let waste overfill).
  2. Planarizer Blade cleaning. http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/ins...
  3. Planarizer Ducts. http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/ins...
  4. Roller cleaning and wax coating.
Weekly / twice per week
  1. General inside machine cleaning, vacuum and wipe down with microfiber tissue
  2. Top fan cleaning with soft brush attached to vacuum.
  3. Filter and filter box vacuum
  4. Jet-Check and Jet Recovery (UI)
Every 1-2 months
  1. Change main filter.
Every 3-6 months usage related (Service Contract) Preventive Maintenance visit of 3D Systems certified FE
When in doubt

Download the Log files and open a case on the 3dsystems user portal, register the machine and contact us for any doubt and question.

ProJet 2500 service procedures must be performed only by a 3D Systems-certified service technician unless this guide explicitly states otherwise. If your 3D printer system needs service, contact 3D Systems Technical Support at the following numbers:

In the United States or Canada, call 800-793-3669

In Europe, call +49-6151-357357

You can also contact your local 3D Systems representative.

3D Systems’ support portal is located at http://www.3dsystems.com/support

For material safety data sheet, go to http://www.3dsystems.com/support/materials/msds

 

Equally important is the build platforms management, they are consumables items and not covered by any warranty. If you Scratch, bend or damage the surface and do not clean it properly it can create many  issues. Platforms need to be stable during the build in order for pattens to adhere, anything else can affect the end quality.

Heating the platform to 80-100° to remove the part is the best procedure. Pay special attention to the heating time, if you leave the parts on heat for too long you will melt the wax pattern.

When storing plates its best to use a soft paper towel between the platform and the storage surface especially if the surface is metal.

Use a soft paper towel between the platforms if stacking to prevent damage to the coating.

When cleaning, carefully use absorbent paper towels while the platform is still hot. Use heat resistant glove to protect your fingers; IPA and alcohol can dry the surface too much and stop the wax sticking properly.

If necessary, buy a new platform!

 

UI OPERATOR MAINTENANCE

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Under "Tools" select "Operator Maintenance".

  1. Waste bag.
  2. Planarizer Ducts
  3. Planarizer Wiper Blade.
  4. Particulate Filters.
  5. Print Carriage Optical Home Sensor.

 

Waste Bag.

Under "Tools" then "Operator Maintenance" screen,  you will see a prompt for the waste bag.  Open the material drawer and locate the waste bin and bag behind the support material bottles.

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Check this frequently. Pull and dispose of waste bag. Replace as needed.

Don’t forget to add the cardboard insert into the fresh waste-bag once it’s in the waste bin.

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Press the wrench icon on the UI display to acknowledge that you have replaced the waste-bag once the procedure has been completed.

 

Planarizer Blade Cleaning.

Press wrench icon and this pop-up will appear, follow the user guide here http://infocenter.3dsystems.com/projetmjp2500/user-guide

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Image 8.jpgIn severe cases, you may see solid build up and may need to use a razor to clean the Planarizer Blade.

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*Clean with caution as this could damage the blade*

 

Planarizer Ducts/Roller cleaning-coating

Under "Tools" select "Operator Maintenance", you will see the option to clean the planarizer ducts. Follow the User Guide : http://infocenter.3dsystems.com/projetmjp2500/user-guide.

Once the print-head carriage is in position, you will get a notification that you may open the top door to inspect and clean the planarizer ducts as needed. Use a soft paper-towel and IPA, wipe underneath the ducts to clean any build-up of material.

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Using paper towel and IPA, gently wipe straight across the length of the planarizer roller to wipe off any excess build-up of material or debris.  Using a chunk of support wax, gently slide it up and down the length of the roller to coat it with wax material.

Weekly vacuum cleaning.

General machine cleaning and maintenance.

Weekly machine cleaning and maintenance is important as pixie dust will build up quickly and make machine messy. A few times a week you should: open top door, use a vacuum to suck up any loose dust and debris, and then use a microfiber cloth to wipe down the beauty plates, printhead carriage, top door,  and outside of machine,etc.

Using a vacuum with a soft brush attachment, locate the fans on the printhead carriage and brush the fans and suck up any loose dust and debris.

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Carefully use the brush or a soft vacuum attachment to vacuum any other dust or debris you see.

Then, proceed to wiping down your machine with the micro fiber cloth to get rid of any excess dust or debris that is still present.

Image 16.jpgOnce complete, locate your machine filter on the bottom right side of the machine, follow the steps described on the guide here:

http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/cleaning-filter-screen-v1

http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/cleaning-filter-screen-v2

 

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Open the door.

Weekly,  take out the particulate filter and gently vacuum excess dust and debris.

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Replace the filter every 1-2 months or when not in good condition, this can vary depending on usage.

Replacement procedure guide is published here:

http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/replacing-particulate-carbon-filter

 

Jet-Check

Jet-Check is a useful tool to ensure the printhead is performing properly. You should be able to evaluate if some jets are not working properly. If maintained properly the jets will be recoverable, if corrective actions are delayed then sometimes the recovery process won’t be 100% effective.

The procedure is posted here: http://infocenter.3dsystems.com/projetmjp2500/user-guide/maintenance/confirm-jets

From the more recent firmware release we have a new jet recovery tool, which is more efficient compared to the head maintenance cycle.

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