Permanent Greetings Card

Technology (STEM)

Permanent Greetings Card

By 3D4Kids


3d model information






Various depending on finished metal work – example of sizes shown in Teacher Explanation.





Printing time:

1-2 hours

Number of pieces:

2 per student


During this project, students have been using various techniques to cut, prepare, shape and join various materials. Students would have used 2D Design to create an image that would then be engraved onto Acrylic using the Laser Cutter.  To complete the project the Acrylic will need a base to allow it to stand.

Learning objectives

Students will be able to:

  • Understand why they need to cover the mild steel
  • Understand Tinkercad
  • Learn 3D printing techniques
  • Create and print in 3D STL models of their base.

Teacher preparation

Discussion of tools within Tinkercad and re-cap how to perform basic actions.

Discuss the size of the base needed to support the acrylic 

Discuss how to transfer the file (STL) to Flash Forge Finder – individual basis when appropriate.

Teacher explanation

Re-cap the unit of work covering Permanent Greeting Card – workshop techniques.

Discuss with students the shape needed for the base to allow the acrylic to stand up – students will need to measure their acrylic to check the finished sizes. Discuss with students the purpose of adding the plastic – to finish off the product adding colour, and to support it. Discuss the use of Tinkercad and how to transfer the information to Flash Forge Finder – re-cap how to save an STL.

Student activity/Steps

Step 1: Students to measure their acrylic in mm. Students will draw out the shape and record the measurements of their chosen base design.

Step 2: Students draw on prior knowledge of Tinkercad to draw out the base.

Step 3: Student to export to Flash Forge Finder and scale to ensure plastic fits around the metal

Step 5: Printing – each student to print their base exporting from Tinkercad to Flash Forge Finder.

Step 6: Students to attach plastic to acrylic.

Step 7: Students to photograph Permeant Greetings Card for production log

Step 8: Students to write about the process they have carried out in their production logs.

General Info

Age of students

12-13 (KS4)

Skills needed

Computer design, 3D printing


1-2 lessons (50 minutes)




PLA Prior to the lesson, Mild steel, acrylic, nuts and bolts


Spatula, pliers, glue Prior to lesson – Laser Cutter, file, emory tape, junior hacksaw, file, wire wool, pillar drill


Tinkercad, Flash Forge Finder

License Info

License name:

Attribution 4.0 International (CC BY 4.0)

License details:

You are free to: Share — copy and redistribute the material in any medium or format. Adapt — remix, transform, and build upon the material for any purpose, even commercially. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

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