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3D printing is a new market that we have seen lots of demands for humidity controlled storage. Since 2017 we have offered the ADL-3D77 as a storage solution to meet this demand and next year we will be expanding product offerings for the 3D printing market with a few additional products. 

In 2020, we performed some in house testing to gather data on how our product will perform in terms of keep filaments dry for optimal printing. The main goal of our test is to determine whether storage in our humidity controlled dry cabinets will have any impact on print quality of various filament polymers. 

Please keep in mind, 3D printing isn't our niche market, so our experience with 3D printing is a novice at best. 

This test was conducted on a Creality Ender 3 with generic brand filament materials : ABS / PLA / PVA / PETG / Nylon / TPU

The intent of this test is to see:

  1. Whether storing filament in a 10% RH or less environment was beneficial to print quality?
  2. Whether exposure to 55% RH ambient environment affects the filaments print quality?
  3. Whether print quality can be restored by storing in Eureka Dry Tech's 3D Printing Filament Dry Cabinet?

Each test consists of 3 parts.

  1. 50mm extrusion feed thru hot end.
    This is to observe whether any irregularity ( popping or sizzling) is observed when filament is passed thru the heated nozzle.
  2. Filament flex test
    This is to observe whether there are any stiffness or brittleness difference between dry and wet filament.
  3. 3DBenchy Model Print test.
    This is to observe whether print quality is affected between storage in humidity controlled environment versus storage in a uncontrolled ambient room condition. The same machine, same sliced file was used during each print.

Eureka Dry Tech Treemaker 3D printer

Eureka Dry Tech Creality Ender 3 3D printer

Initially, we planned on using 2 printers to print 3 types of materials on each printer during each work day. However, one of the printers (Tree Maker on the left) sat for quite some time and had substantial problems that we were constantly chasing and unable to resolve. So the test was split into 2 separate runs of 3 material groups, PLA / PVA / TPU during the first run and Nylon / ABS / PETG during the second run. All prints were conducted on the Ender 3.

Hardware:

  • Creality Original Ender 3 purchased in 2018. Since we planned on printing TPU, a direct drive conversion was added as well as some LEDs to illuminate the print for time lapse photos.
  • Testo 175-H1 Humidity / Temperature Data loggers were used inside and outside the cabinet to record the storage conditions during the test.
  • Filament materials that were subject of this test were non-branded PLA, PVA, TPU, ABS, Nylon and PETG. 
    Note: The subject of the test was not specific to any filament brand but specific to each filament material. Some variance may be observed with different brands but overall effects of humidity exposure should be expected regardless of brand.

We began the test by calibrating the filament for our printer with the least of amount of defects as possible (i.e. stringing, under extrusion etc.).
Once the calibration is completed we will print the 3DBenchy model with each type of filament for a week to establish the baseline quality of dry filament. Prior to each print we will perform a flex test by folding the filament to see if the stiffness has changed and a extrusion test to see if any moisture is observed by just extruding thru the hotend.
 

PLA - 3D Benchy Print Test Results

PLA 3D Benchy Print Test

PLA Calibration Week 1 07/06/20-07/10/20

Conditions inside the cabinet

Conditions of the test room

07/06/20

No print test performed on this date.

07/07/20

07/08/20

No print test performed on this date.

07/09/20

07/10/21

PLA Calibration Week 2 07/13/20-07/17/20

Conditions inside the cabinet

Conditions of the test room

07/13/20

07/14/20

07/15/20

No print test performed on this date.

07/16/20

07/17/20

PLA Print Test Week 1 07/20/20-07/24/20

Conditions inside the cabinet

Conditions of the test room

07/20/20

No print test performed on this date.

07/21/20

07/22/20

No print test performed on this date.

07/23/20

07/24/20

PLA Print Test Week 2 07/27/20-07/31/20

Conditions inside the cabinet

Conditions of the test room

07/27/20

07/28/20

07/29/20

No print test performed on this date.

07/30/20

07/31/20

PLA Print Test Week 3 08/03/20-08/07/20

Conditions inside the cabinet

Conditions of the test room

08/03/20

08/04/20

08/05/20

08/06/20

08/07/20

No print test performed on this date.

PLA Print Test Week 4 08/10/20-08/14/20

Conditions inside the cabinet

Conditions of the test room

08/10/20

No print test performed on this date.

08/11/20

No print test performed on this date.

08/12/20

08/13/20

08/14/20

PLA Print Test Week 5 08/17/20-08/21/20

Conditions inside the cabinet

Conditions of the test room

08/17/20

08/18/20

08/19/20

08/20/20

08/21/20

PLA Print Test Week 6 08/24/20-08/28/20

Conditions inside the cabinet

Conditions of the test room

08/24/20

08/25/20

08/26/20

No print test performed on this date.

08/27/20

08/28/20

PLA Print Test Week 7 08/31/20-09/04/20

Conditions inside the cabinet

Conditions of the test room

08/31/20

09/01/20

09/02/20

No print test performed on this date.

09/03/20

No print test performed on this date.

09/04/20

PVA - 3D Benchy Print Test Results

PVA Open package and Flex Test 07-08-20

PVA Open package 07-08-20

PVA 3D Benchy Print Test

PVA Calibration Week 1 07/06/20-07/10/20

Conditions inside the cabinet

Conditions of the test room

07/06/20

No print test performed on this date.

07/07/20

No print test performed on this date.

07/08/20

07/09/20

07/10/20

PVA Calibration Week 2 07/13/20-07/17/20

Conditions inside the cabinet

Conditions of the test room

07/13/20

07/14/20

No print test performed on this date.

07/15/20

07/16/20

07/17/20

PVA Print Test Week 1 07/20/20-07/24/20

Conditions inside the cabinet

Conditions of the test room

07/20/20

No print test performed on this date.

07/21/20

No print test performed on this date.

07/22/20

07/23/20

07/24/20

PVA Print Test Week 2 07/27/20-07/31/20

Conditions inside the cabinet

Conditions of the test room

07/27/20

07/28/20

07/29/20

07/30/20

07/31/20

No print test performed on this date.

PVA Print Test Week 3 08/03/20-08/07/20

Conditions inside the cabinet

Conditions of the test room

08/03/20

08/04/20

No print test performed on this date.

08/05/20

08/06/20

08/07/20

No print test performed on this date.

PVA Print Test Week 4 08/10/20-08/14/20

Conditions inside the cabinet

Conditions of the test room

08/10/20

No print test performed on this date.

08/11/20

No print test performed on this date.

08/12/20

08/13/20

08/14/20

PVA Print Test Week 5 08/17/20-08/21/20

Conditions inside the cabinet

Conditions of the test room

08/17/20

08/18/20

08/19/20

08/20/20

08/21/20

PVA Print Test Week 6 08/24/20-08/28/20

Conditions inside the cabinet

Conditions of the test room

08/24/20

08/25/20

08/26/20

08/27/20

08/28/20

PVA Print Test Week 7 08/31/20-09/04/20

Conditions inside the cabinet

Conditions of the test room

08/31/20

09/01/20

09/02/20

No print test performed on this date.

09/03/20

No print test performed on this date.

09/04/20

TPU - 3D Benchy Print Test Results

TPU Open Package and Extrusion Test 07-08-20

TPU Open Package 07-08-20

TPU 3D Benchy Print Test

TPU Calibration Week 1 07/06/20-07/10/20

Conditions inside the cabinet

Conditions of the test room

07/06/20

No print test performed on this date.

07/07/20

No print test performed on this date.

07/08/20

07/09/20

07/10/21

TPU Calibration Week 2 07/13/20-07/17/20

Conditions inside the cabinet

Conditions of the test room

07/13/20

07/14/20

No print test performed on this date.

07/15/20

07/16/20

07/17/20

phone="12" tablet="12" desktop="12" wide="12" different_values="0"

TPU Print Test Week 1 07/20/20-07/24/20

Conditions inside the cabinet

Conditions of the test room

07/20/20

No print test performed on this date.

07/21/20

No print test performed on this date.

07/22/20

07/23/20

07/24/20

No print test performed on this date.

TPU Print Test Week 2 07/27/20-07/31/20

Conditions inside the cabinet

Conditions of the test room

07/27/20

07/28/20

07/29/20

07/30/20

No print test performed on this date.

07/31/20

TPU Print Test Week 3 08/03/20-08/07/20

Conditions inside the cabinet

Conditions of the test room

08/03/20

08/04/20

No print test performed on this date.

08/05/20

No print test performed on this date.

08/06/20

08/07/20

Print test was performed on this date but model was not kept due to failed prints.

TPU Print Test Week 4 08/10/20-08/14/20

Conditions inside the cabinet

Conditions of the test room

08/10/20

08/11/20

No print test performed on this date.

08/12/20

08/13/20

08/14/20

TPU Print Test Week 5 08/17/20-08/21/20

Conditions inside the cabinet

Conditions of the test room

08/17/20

08/18/20

08/19/20

08/20/20

No print test performed on this date.

08/21/20

TPU Print Test Week 6 08/24/20-08/28/20

Conditions inside the cabinet

Conditions of the test room

08/24/20

08/25/20

08/26/20

08/27/20

08/28/20

TPU Print Test Week 7 08/31/20-09/04/20

Conditions inside the cabinet

Conditions of the test room

08/31/20

No print test performed on this date.

09/01/20

09/02/20

09/03/20

No print test performed on this date.

09/04/20

No print test performed on this date.