3 mm MDF · no glue · 11 cars · garage with rooftop parking · production version · 324 × 149 × 246 mm
A corner auto repair shop for 1:64 collectible cars: the ground floor is three open bays with a two-post lift, a workbench and a tool board; the rooftop is parking for 6 cars, and 2 more fit on the engraved street. It is laser cut from one sheet of 3 mm MDF and goes together without glue: everything fits with tabs. The DXF layer names are in Spanish: CORTE means cut, GRABADO means engrave, and HOJA_NO_CORTAR is the sheet outline, not to be cut.
| Joint | Type | Clearance |
|---|---|---|
| Walls to base and back | Tabs in closed slots; the back wall extends 8 mm so no slot is left open at the edge | t + 0.05 |
| Rooftop | 4 tabs to the back wall, 3 to each side wall and 2 cross columns at the front | t + 0.05 |
| Sign beam | Tabs to the rooftop and to both side walls | t + 0.05 |
| Rooftop railing | Tabs to the rooftop and the walls, offset from the beam's | t + 0.05 |
| Lift | Posts to the base and the top beam; arms tabbed to the post | t + 0.05 |
| Workbench and tool board | Box of sides, front and top; the board slots into the top | t + 0.05 |
t is the measured thickness of the sheet (3.00 mm in your MDF). The slots were computed by projecting each tab onto the part that receives it, including the angled ones.
| Part | Qty | Size (mm) |
|---|---|---|
| Base with street | 1 | 324 × 246 |
| Wall | 3 | 2 sizes, up to 316 × 149 |
| Rooftop parking deck | 1 | 306 × 144 |
| Column (cross plate) | 4 | 16 × 80 |
| Sign beam | 1 | 306 × 19 |
| Rooftop railing | 1 | 306 × 21 |
| Two-post lift | 5 | 3 sizes, up to 94 × 12 |
| Workbench and tool board | 5 | 4 sizes, up to 68 × 40 |
| Total | 21 |
Outside dimensions including tabs. Approximate weight of the structure: 0.5 kg.
The second sheet fits both dioramas together on a single 1220 × 1220 mm sheet. 3 mm spacing between parts and an 8 mm margin; no part sits inside another part's window. The DXF files already compensate for a 0.10 mm kerf: the machine must cut without compensation. CORTE (cut) layer in red and GRABADO (engrave) in blue.
License. The design (the model, the cut sheets, the DXF files and this document) is by Israel Negrete Lepe and is published under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license (CC BY-NC-SA 4.0): you may build, modify and share it non-commercially, crediting the source (crtdrops.mx, Israel Negrete Lepe) and sharing your changes under the same license. Selling it, or selling parts cut with it, requires permission: write to me.
Safety. Provided as is, without warranty. It weighs about 0.5 kg without the cars. Laser cutting MDF produces smoke and dust: do it with extraction, in a suitable workshop. The parts and the cars are small: keep them away from young children.
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