DESK · BEGINNER
How to make a desktop pencil divider with vibe CAD
Convert an existing desk cup into separate pencil compartments using a removable insert fitted to the cup rather than a generic cylindrical assumption.
Concept illustration. Customize the prompt and upload your CAD.
removable organizer for an existing cup. It is not a drinking-cup accessory or a food-contact design.
01 / START WITH THE REAL OBJECT
Measure before you prompt.
- Measure the cup opening in two directions and its interior width at the intended insert depth.
- Record the usable internal height and any tapered walls or rounded bottom.
- Measure the thickest pencil, marker or eraser-ended tool assigned to each compartment.
- Select the number of compartments and a removable-fit gap using a cardboard mockup.
State units. If a dimension is missing, have your agent ask for it.
02 / GIVE YOUR AGENT A CLEAR BRIEF
Copy this into your CAD conversation.
Use Claude or another agent with a CAD tool such as OpenSCAD, CadQuery or your existing modeler. Fill in your measurements and keep the source editable.
Model a removable cup divider with opening_width, opening_depth, lower_width, lower_depth, insert_height, divider_count and perimeter_gap. Represent the cup taper explicitly and keep the bottom open. Ask for the cup cross section and largest tool diameters. Do not add a press fit or flexible retention tabs unless separately specified and sampled.03 / INSPECT AS YOU BUILD
Model it in deliberate steps.
Describe the cup interior
Sketch the opening and a lower cross section. Connect them with a tapered envelope that stops above any rounded base in the cup.
Divide by actual tools
Place divider walls inside that envelope using measured tool groups. Make one wider compartment where markers or erasers need more room than pencils.
Provide a removal grip
Add a small raised finger tab near the center. Round exposed upper edges and keep the tab away from the normal pencil-grabbing area.
04 / VALIDATE THE FIRST PROTOTYPE
Check the fit and intended use.
- Try a cardboard cross-shaped insert in the cup to confirm taper, depth and removal access without forcing it.
- Inspect the minimum compartment width at the bottom, where a tapered cup can pinch the thickest tool.
- Compare exported upper and lower dimensions with the cup measurements and request a perimeter-fit sample if uncertain.
Material
PLA or PETG may suit a desk insert concept.
List critical dimensions and acceptable deviations in your request. See clearance and fit and material grades.
05 / START YOUR ORDER
Upload your CAD. Get an exact quote.
Customize the prompt, export your model and submit it with quantity, intended use and fit requirements. We review your request and send a nonbinding quote; the payment link follows if you accept.
No charge at submission. Current firm print scope is PLA/PETG shipped within the contiguous US/DC.