Home and desk
This tool builds a mug and cup holder that clamps to the edge of your desk without drilling, and exports it as STL. Enter the cup diameter, basket height and desk thickness in millimetres; the mug sits outside the desk, away from the keyboard and papers.
The clamp is a C that slides over the desk edge, with parallel upper and lower jaws. The pad at the lower jaw tip sits on a spring tongue; it leaves a gap 0.6 mm under the desk thickness, so the tongue flexes and grips. The basket prints separately and slides down onto a dovetail rail on the clamp. The ring is 1.5 mm wider than the cup; the handle slot keeps the handle outside.
Free, no sign-up. Change the sizes in millimetres and download the STL.
Each variant is the same template with different settings. Follow the link and the editor opens with those values.
Holder type: Basket with bottom · Cup diameter: 84 mm · Basket height: 70 mm +7
Open this variant: Mug with handle, basket with bottom
Holder type: Tapered ring · Cup diameter: 90 mm · Basket height: 50 mm +7
Open this variant: Paper coffee cup, tapered ring
Holder type: Basket with bottom · Cup diameter: 80 mm · Basket height: 70 mm +7
Open this variant: For a 40 mm thick deskThese values are edited in the editor's template panel. A number outside the range is clamped to the nearest limit automatically.
| Size | Range | Default |
|---|---|---|
| Shape | ||
| Holder type | Basket with bottom, Tapered ring | Basket with bottom |
| Dimensions | ||
| Cup diameter | 60–110 mm | 84 mm |
| Basket height | 30–120 mm | 70 mm |
| Taper angle * | 2–15 ° | 6 ° |
| Wall thickness | 2–5 mm | 3 mm |
| Mounting | ||
| Desk thickness | 12–50 mm | 25 mm |
| Clamp depth | 15–60 mm | 35 mm |
| Clamp width | 20–60 mm | 30 mm |
| Arm thickness | 5–12 mm | 7 mm |
| Options | ||
| Handle slot | On / Off | On |
| Slot width * | 10–40 mm | 22 mm |
Sizes marked with a star appear in the panel only when the related shape, style or option is active.
The basket is for straight sided mugs: the mug rests on a ring shaped bottom and the basket wraps half its height. The tapered ring has no bottom and narrows downwards; paper coffee cups and flasks wedge into it.
A full 500 ml mug weighs about 0.7 kg and sits 50-60 mm outside the desk edge. That moment causes bending stress in the clamp back, which the tool shows in MPa. With the default 7 mm arm and 30 mm clamp width it is about 1.4 MPa, far below the safe 10 MPa limit for PETG layers.
Measure the desk with calipers and enter the exact value. The mouth is always 0.6 mm narrower than the desk; edge banding can add a few tenths of a millimetre.
PETG and ASA withstand more than 70 °C, so a mug of boiling water is fine. PLA can soften at that temperature.
Yes, but increase the clamp depth so the upper jaw and pad sit on flat surfaces.
This tool builds a headphone hanger sized to your desk and headband and exports it as STL. Choose a desk edge clamp, an under-desk screw plate or a wall plate, then enter arm length, cradle width and curve in millimetres.
Sizes and details: Headphone hanger
This tool generates a pen holder at the diameter and height you type in and exports it as an STL. Choose the body shape, set wall and floor thickness, add compartments if you want them, and the model updates in the browser so you can spin it and check.
Sizes and details: Pen holder
This page opens the DrawSTL phone stand template: a parametric desk stand that leans the phone against an angled back rest with a front lip to hold it, sized in millimetres and downloaded as a print-ready STL. You set the angle, the slot the phone drops into, the stand width and the lip height.
Sizes and details: Phone standOpen the template in the editor, enter your values and download a print-ready STL. No account needed.