123.1 – spacer with 5° angle

Basic Info

• What is it: a spacer with a 5° angle, more explanation below 
• Material: strong | standard tolerance
• Dimensions: diameter ~35mm, height  ~5mm | standard tolerance
• Holes: 1 holes, diameter 6mm

Explanation of the part (Images below ↓)

• How does this component work/for what was it introduced? It allows a 5° angle to be packed onto a surface – e.g. for a chair like WORMS.
• But what does that mean? For a chair, it means that the front leg is extended, depending on how long the seat is. Since we know the length of side C (the distance between the holes on the seat, see illustration above) and two angles, we can use simple angle maths to calculate the length of side b and thus the extension of the front leg of a chair. Here is an online calculator for this.
  • For WORMS, for example, this means that the length C is 390mm (distance between the holes in the seat plate) and therefore the front legs of the chair must be 33.3991mm longer than the rear legs. This is why WORMS has a 4mm thick disk in its parts list. 

stl download 1 | 2

Get the part

• Buy: Available as local make
• Make: If you like you can 3d print this part. Here are STL-files to use for it: direct download | from a folder

Meta

• Introduced by: Lars Zimmermann via WORMS, original post | original post backup.pdf
• Open: Shared under IPP 1.0
• Disclaimer: This part is just a concept and not fully tested. You should not assume that it works as indicated and I am not saying that it does. I disclaim any responsibility or liability for any damage caused during the construction and use of products based in whole or in part on the concept shown here. All information is provided for your use at your own risk.