The Radio
Cart

What is it?

This is an open-source, nomadic radio cart and DJ booth designed for community radio stations. It is not a fixed object: it is a system. Built with parametric CAD, it can fit all the equipment an online radio can have: mixer, dj deck, turn tables, microphones, cables, and everything else. Depending on what tools you have access to, it can be manufactured three different ways: with basic hand tools, in a standard wood workshop, or with a CNC router. Always from sheet wood.

All design files, technical drawings, and construction manuals are free to download here.

Who is this for?

If you run a community radio and want to bring it outside: this is for you. If you don't have the technical knowledge to modify the parametric files, get in touch and we can work something out.

A radio is not just a stream: it is a place and people. This cart is designed to take that wherever you go.

Dessin technique de mobilier modulable Radio Cart image 1 Radio Cart image 2 Découpe des panneaux à plat Radio Cart image 3

How to build this cart?

Handtools Handtools Workshop Workshop CNC CNC

Download the file and change its parametrics to the desired sizes if needed: file download link

  1. Handtools

    Get rid of the groove from the file and cut all sheets to size using a handsaw, or ask your local supply store.

    Workshop

    Cut sheets to size using a tracksaw, table saw, jig saw.

    CNC

    CNC the file.

    Étape 1 : découpe des panneaux à plat
  2. Handtools

    Mark locations for screws and pre drill (diameter of the drill should be 1mm smaller than the screws used), you can space them approximatively 100mm apart and counter sink the holes. For the peg doors, you can use an already made pegboard and screw it to the doors (or anywhere you would like it to be).

    Workshop

    Using a router (with a cutting bit the size of the thickness of your planks) rout out all the grooves as shown in the model. Alternatively, you can use dominos or similar dowel techniques as a replacement for the grooves (faster).

    Étape 2 : défonçage des rainures au routeur
  3. Handtools

    Screw and glue together the inside walls and shelves first.

    CNC Workshop

    Assemble glue and clamp the inside walls and shelves to the middle wall.

    Étape 3 : assemblage des parois intérieures et étagères
  4. Handtools

    Glue and screw inside walls to bottom.

    CNC Workshop

    Insert inside walls into the bottom and screw from below (screws will only be visible from the bottom of the cart and add strength).

    Étape 4 : insertion des parois dans le fond
  5. Handtools

    Glue and screw the front and the sides.

    CNC Workshop

    Glue and clamp the side walls.

    Étape 5 : collage et serrage des parois latérales
  6. Handtools

    Glue and screw the top.

    CNC Workshop

    Glue and clamp the top.

    Étape 6 : collage et serrage du dessus
  7. CNC Workshop Handtools

    Glue and clamp the front (speaker side).

    Étape 7 : collage et serrage de la face avant (côté haut-parleur)
  8. CNC Workshop Handtools

    Drill the holes for the door hinges according to the specsheet of the chosen brands. Mount hinges, doors, magnets and any other hardware of your choice. Pre drill holes for the wheels and fix them with bolts and nuts (preferably carriage bolts).

    • Kitchen cabinet hinge (all the doors, except for on top)
    • Top one: invisible hinge, 10mm
    Étape 8 : montage des charnières, portes et roulettes
  9. Handtools

    If you counter sinked the drill holes you can fill them with wood filler. Sand and apply finishing of your choice! (Stain/laquer, paint, oil or wax)

    CNC Workshop

    Sand and apply finishing of your choice! (Stain/laquer, paint, oil or wax)

Roof instructions

Parts needed for the roof are found on the open structure website.

  1. Handtools

    Using a metal saw, cut out the shape of the brackets out of 2mm steel. You can use the open structure grid for dimensions.

    Workshop

    Using an angle grinder or metal bandsaw, cut out the shape of the brackets out of 2mm steel. You can use the open structure grid for dimensions.

    CNC

    With the DXF file of the brackets, laser cut them out of 2mm steel.

  2. Handtools

    With a 10mm drill, drill out the mounting holes in the brackets.

    Workshop

    With a 10mm drill in a drill press, drill out the mounting holes in the brackets.

  3. Handtools

    Using a metal saw, cut the 20mm aluminium tubes to size.

    Workshop

    Using a miter saw, cut the 20mm aluminium tubes to size.

  4. Handtools

    Drill 10mm holes for locking pins in the aluminium tubes.

    Workshop

    Using a drill press, drill 10mm holes for locking pins in the aluminium tubes.

  5. Handtools

    Using a handsaw, cut the wooden beams to size.

    Workshop

    Using a mitre saw, cut the wooden beams to size.

  6. Handtools

    Drill 10mm holes in the beams for the mounting brackets.

    Workshop

    Using a drill press, drill 10mm holes for the mounting brackets.

  7. Handtools

    Drill 20mm holes in the beams for the aluminium tubes.

    Workshop

    Drill 20mm holes in the beams for the aluminium tubes.

  8. Handtools Workshop CNC

    Attach beams together with the mounting brackets using M10 bolts, nuts and washers.

How to use the Fusion File?

If you don't have Autodesk Fusion here is how to download it for Free (to open this file)

This file was made in Autodesk Fusion. You can open and use it for free with a Personal Use license (no paid subscription needed for hobby/non-commercial use).

  1. Go to autodesk.com/products/fusion-360/personal
  2. Click »Fusion for personal use», not the «Free Trial» button (that one only lasts 30 days and gives you the full paid version temporarily).
  3. Sign in with an Autodesk account, or click to create a free one if you don't have one.
  4. Fill in your basic info and confirm you qualify (non-commercial, personal/hobby use, under $1,000/year revenue from it).
  5. Verify your email via the link Autodesk sends you, then log back in.
  6. Click Download Now. This downloads the installer to your computer.
  7. Open the downloaded installer file and click «Yes» if your OS asks for permission to run it.
  8. Fusion will install automatically. This may take a few minutes.
  9. Once installed, open Fusion and sign in with your Autodesk account again if prompted.
  10. You may be asked to set up a «Hub» (your workspace for projects), default settings are fine.

Opening the file from this site

  1. Download the .f3d (or .f3z) file from this page and save it somewhere you can find it, like your Desktop or Downloads folder.
  2. Open Fusion.
  3. Click File → Open (or the folder/Open icon in the top toolbar).
  4. In the dialog, choose Upload (Fusion stores files in the cloud, so you typically upload local files into your Hub first).
  5. Select the file you downloaded and upload it.
  6. Once uploaded, it'll appear in your project list: double-click it to open it in the Fusion workspace.

Note: Fusion's free personal license limits you to 10 active documents at a time. If you hit that limit, you can mark older files as inactive instead of deleting them.

1 - How to adjust the parameters

2 - Exporting parts for the CNC

3 - Exporting plan drawings

4 - Exporting individual dimensions for hand tools

Contact

Got questions about building the cart, want help adapting the design for your space, or just want to share what you made with it? Get in touch.

zoebruhat@gmail.com

We're especially happy to hear from you if:

  • You don't have the technical skills to modify the parametric files yourself, and need a hand adapting the design to your tools or space
  • You built one and want to send photos, feedback, or improvements: this project gets better when people share what they learn
  • You're stuck on manufacturing (hand tools, workshop, or CNC) and need troubleshooting
  • You want to use this for a project beyond community radio and aren't sure if it fits
  • You spotted an error in the files or manuals