Tulip Cup Holder — clamp-on flower drink holder for your desk

A tulip in full bloom that clamps onto the edge of your desk and holds a

drink. Six broad overlapping petals form a Ø76 mm cup that swallows a

standard 80 mm can, cup or mug; a leaf-shaped C-clamp on a curving green

stem grips the table edge, tightened by a printed daisy-knob thumbscrew.

No metal hardware — the screw, thread and pressure pad all print.

RECOMMENDED MATERIAL: PETG. This part holds a full drink cantilevered

off a clamp, and the printed thumbscrew thread takes real clamping load —

PETG's toughness and creep resistance keep the thread from stripping and

the stem from sagging over time. It also shrugs off a hot mug and the

odd splash far better than PLA. PLA prints fine and looks great for a

light cup, but for daily use with a heavy mug, print it in PETG.

Fits ANY desk — fully parametric. The single most useful knob in the

.scad is clamp_open: the gap between the two leaf-jaws, i.e. the desk

thickness the clamp swallows (default 40 mm, tested ~20–70 mm). Change it

and the printed screw length auto-scales to keep spanning the gap — no

other edits needed. The cup diameter, petal count, wall thickness, knob

and thread are all parametric too.

Parts (all included as separate STLs):

• cup_holder_tulip.stl— the main tulip body: cup + stem + clamp (single colour).

• - tulip_petals.stl+ tulip_stem.stl— the SAME body split into two pieces

•   on shared coordinates, for a two-colour print (red