Saturday, November 16, 2024

A STEM Project: A Rubber Band Pop-Up Gingerbread House

A Rubber Band Pop-Up Gingerbread House - Side View #1

Side View #2 

Here is a video of the pop-up in action.

 This rubber band pop-up card is an engineering marvel.  It combines a rubber band mechanism with a house which pops-up when removed from an A4 envelope. An A4 envelope is 4 1/4 in. x 6 1/4 in. The recipient of this card will be astonished when the flat card opens into this amazing three dimensional gingerbread house for Christmas.

The rubber band expands when the base is pressed down at the seam that is opposite to the internal diagonal.  When the side pressure is released, the expansion tension on the rubber band is released and the rubber band returns to its natural state  This phenomenon allows the form to deploy and become three dimensional.

For my papercrafting friends, no coding is necessary.  All the files for the pop-up gingerbread house are included. 

The entire gingerbread design with the embellishments were coded in TurtleStitch and then opened in the Silhouette program for cutting. 

Here is the PDF.  I used 65 lb. white and green cardstock, red foil cardstock and red glitter cardstock. I used the back of the red foil cardstock for the gingerbread man as it was brown.

A one inch rubber band is required for the pop-up base. (The rubber band is similar to the rubber band used on a Rainbow Loom.) I also used one glue dot. 

Here is the .Studio file.

Here is the SVG.

Make the Pop-Up Rubber Band Base - Here is the code that I used to create this pop-up rubber band base in TurtleStitch. https://www.turtlestitch.org/users/Elaine/projects/Rubber%20Band%20Pop-Up%20Mechanism

There are two sides to the rubber band base. Each side is folded over to create a two-ply base. Crease the paper as shown above.  

Glue the folded sides together.

Glue the tabs together. Make sure that the slits are going in the same direction.

Slide the one inch rubber band into the slit and align the rubber band with the round hole in the base of the slit.

Fold the base so that a square is made with a diagonal in the middle.  Slide the rubber band into the slit and align the rubber band as before. There is a gap in the diagonal.

Apply a Glue Dot into this gap.

Rubber Band Base
The base can be flattened when the corners without the diagonal are pressed inward.

Make the Gingerbread House - Here is the code that I used to create this gingerbread house and roof in TurtleStitch.  https://www.turtlestitch.org/users/Elaine/projects/Gingerbread%20Cottage%20-%20Rubber%20Band%20Pop-Up

Wrap and glue the velum to the pop-up base as shown above.  Do not use a lot of glue.  I glued just the base of the vellum.

Apply glue to the top and bottom of the vellum as shown above.

Fold the gingerbread house wrap around the vellum.

Apply glue on the roof beam and fold in half.

 Splay the side tabs outward as shown above.

Glue the splayed tabs to the peak of the house on both sides.  Allow the roof beam to dry before proceeding.  Apply a good amount of glue to the top of the roof beam as shown above.

Glue the one roof piece to the other roof piece.

Center the smaller roof piece to the center and apply a good amount of glue to the center seam.

Attach the roof to the gingerbread house.  Make sure that the roof is centered by looking at the overlap of the roof on both sides.


Embellish the Gingerbread House with a Gingerbread man, swirls candy, candy canes and a wreath with a bow.

 
Glue on the embellishments to the house as desired. 

The tree was created by gluing two trees together at the dotted center line with a thin line of glue.  Once the glue is dry, the top tree is splayed outward.

Here is the code that I used to create this tree in TurtleStitch. https://www.turtlestitch.org/run#cloud:Username=Elaine&ProjectName=tree 

Here is the code that I used to create the gingerbread man in TurtleStitch.

Here is the code that I used to create the swirls candy in TurtleStitch.


The candy cane was made by glueing two types of cardstock together. The one layer with the swirls was white cardstock and the other layer was red foil cardstock.

Here is the code that I used to create these candy canes in TurtleStitch.

The bow on the wreath was made with red glitter cardstock.  The center circle of the bow was glued on and then the entire bow was glued to the wreath.

Here is the code that I used to create this wreath and bow in TurtleStitch.

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