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Everyday fixes
Cup holder insert for narrow cans
Slim 250 ml energy cans and small coffee cups rattle in a standard 80 mm car cup holder and tip on corners. An insert fills the gap with an outer cup of 79 mm diameter tapering to 70 mm at the base, an inner bore of 55 mm, walls of 2 mm, a 4 mm flange on top to lift it out, and drainage slots in the bottom. Two shallow finger notches make removal easy, and PETG or ASA hold up to a hot dashboard. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| outer diameter at top | 79 mm |
| outer diameter at base | 70 mm |
| overall height | 80 mm |
| wall thickness | 2 mm |
| inner bore diameter | 55 mm |
| floor thickness | 3 mm |
| flange overhang width | 4 mm |
| flange thickness | 3 mm |
| finger notch width (arc width at rim) | 15 mm |
| how deep the notch cuts down from top | 8 mm |
| drain hole diameter | 6 mm |
Example prompt
Design a cup holder insert 79 mm outer diameter at the top tapering to 70 mm at the base, 80 mm tall, 2 mm walls, a 55 mm inner bore, a 4 mm top flange, two 15 mm finger notches, and three 6 mm drain holes in the floor.
Fit notes
Car cup holders range from 70 to 95 mm wide, and SpeakCAD sizes the insert to your measured holder and the exact can you drink from, then lets you add a phone slot or a coin tray in the chat. Open the ready-made model free, change its numbers in the viewer and download the STL or 3MF free; AI changes use credits.
Questions people ask about a cup holder insert for narrow cans
Slim 250 ml energy cans and small coffee cups rattle in a standard 80 mm car cup holder and tip on corners. An insert fills the gap with an outer cup of 79 mm diameter tapering to 70 mm at the base, an inner bore of 55 mm, walls of 2 mm, a 4 mm flange on top to lift it out, and drainage slots in the bottom. Two shallow finger notches make removal easy, and PETG or ASA hold up to a hot dashboard.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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