Page 55 - eBook_Proceedings of the International Conference on Digital Manufacturing V1

Evaluating Polymethyl Methacrylate (PMMA) and Blockboard as Enclosure
Materials for Ambient Stability in FDM Printing

Two enclosure was constructed for this study, measured at 500
mm (width) × 600 mm (length) × 620 mm (height), featuring 5mm
PMMA Sheets and 15mm as the primary side-wall material. Table
7 provides the specific printing parameters utilised throughout the
experimental procedures.

Table 7: Parameters of 3D Printing Process

Printing Parameters Values
Extruder temperature 270°C
Bed temperature 110°C
Layer height 0.2mm
File format STL

Figure 6 illustrates the sample model's design, after a slicing
procedure conducted using Ultimaker Cura, an open-source
slicing software. The estimated total printing duration for
fabricating the sample was approximately 3 hours and 8 minutes.

Figure 6: 3D Model of the sample after slicing process

A digital thermometer sensor with a measurement range of -50
to 110°C was utilised to accurately monitor and document
ambient temperature during the experimental trials. This sensor
was strategically placed near the 3D printer to ensure precise and
consistent temperature readings throughout all experimental runs.
The experiments were conducted within an enclosed room
environment, maintaining a consistent ambient temperature
ranging from 23°C to 26°C. Data collected from both the PMMA

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