This origamic architecture pop up card of a slice of cake can be made in white; or in any colors you choose, as a print and cut.
Relatively easy to hand cut if you don't have a cutting machine!
How to make a cake slice pop up card
Files download for free; pay what you wish for the tutorial and to support this site. Suggested contribution for this project is $1.99.
Download cutting files: pdf, svg (can be used with Cricut Design Space), dxf, Silhouette Studio.
Adjust colors as desired, or select and delete the color-filled objects for a more traditional all-white origamic architecture look.
The Silhouette Studio file already has registration marks.
Cut numerals as desired. If you are using a single digit, delete one set numeral slots and move the other set horizontally to be centered on the cake slice.
Crease at top and bottom of each numeral, and across the strut as indicated by red lines.
Cut and score the cake. Cut vertical lines, score horizontal lines. Cut the horizontal slots for the numeral pieces.
From the back of the card, pinch along the two horizontal scored lines on either side of the cake piece. This prefolds the crease that will form the center fold line of the card.
Pinch along the long top crease.
With the card partially folded shut, and working from the back, start pushing the little slices forward. Encourage the card to collapse, pushing each little section to coax each crease to fold.
Open the card to 90° and insert the numeral tabs into the slots. Tape or glue the tabs to the back of the card.
Leaving the card open to 90°, dry fit it into a backing card. Identify the parts of the card that touch the backing, and those that do not.
See this post for more information about gluing this kind of card into a backing.
Spread glue on the back of the card, around the edges of the folded part, on the parts of the card that touched the backing when the card was at 90 degrees. No glue should be on the back of the colored parts that pop forward to form the cake slice.
Insert the card into the backing and adhere.
Answering Lynne's question from the comment section: here the card is open 90° and placed with the left side of the card on a table. You are looking down on it. (Under the card is a piece of white paper, under the white paper is the black table surface.) The sides of the cake are made up of a series of slats that you can see through when the card is sideways.
I made a quilt square front from a variety of origami papers, some of which I ran through my embosser.
Extreme Cards and Papercrafting: pop up cards, movable and mechanical cards, digital crafts and unusual papercrafts.