Kapy CADverified
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Voronoi cells
Organic Voronoi cell pattern (cracked / cellular look).
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Octagon tile
Octagons with a small square in each interstice (octagonal floor tile).
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Basket weave
Over-under woven bars in a checkerboard.
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Brick (running bond)
Offset brick courses with mortar joints.
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Anti-slip tread plate
Staggered dashes in a checker pattern (diamond floor-plate grip).
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Ribbed lines
Parallel ribs / grooves tiled over the surface.
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Perforated holes
Grid or staggered circular holes (perforation).
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Diamond lattice
Rhombus lattice tiled over the surface.
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Square grid
Orthogonal grid lattice tiled over the surface.
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Hexagonal mesh
Honeycomb lattice tiled over the surface.
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CV tulip housing
The tulip housing (female) half of a constant-velocity joint: a cup with three axial grooves at 120° the CV tripod’s rollers ride in, transmitting torque through an angle at constant velocity. The cavity clears the tripod with a fit gap and the grooves seat the rollers. Set hub / arm / roller sizes, housing height, wall and fit clearance. Pair with the CV tripod spider.
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CV tripod spider
The tripod spider (male) half of a constant-velocity joint: a three-arm hub with a roller at each arm tip and a central shaft bore. The rollers ride the axial grooves of the CV tulip housing, transmitting torque through an angle at constant velocity. Set hub / arm / roller sizes and bore. Pair with the CV tulip housing.
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Jaw / spider coupling kit
Lovejoy-style jaw / spider coupling kit: two identical clawed hubs that mesh through an elastomer spider to transmit torque while damping shock and absorbing misalignment. Each hub is a bored cylinder with a ring of axial jaws; the spider is a short disc with matching radial lobes that sit between them. Set hub / bore / spider diameter, jaw count, hub and jaw height. Print two hubs rigid and the spider in TPU.
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Living-hinge folding box net
Parametric origami / living-hinge folding-box net: a flat plus-shaped blank (a square base with four wall panels) scored along the four fold lines with thin living-hinge grooves. Each groove leaves a thin film of material that flexes, so the four walls fold up into a box. Set panel size, sheet thickness, the remaining hinge film and the groove width. Print flat; fold it up.
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Heat-staking post
Parametric heat-staking post: a base, a stem and a conical tip. Mould it on one part; a hot iron melts the tip into a rivet head that traps a mating part through its hole. Set base/stem diameters and heights and the tip height.
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Torsional snap latch
Parametric torsional snap latch: a see-saw lever pivoting on a thin torsion bar. The bar runs between two posts on a base; a flat lever reaches out to a finger pad on one side and a hook on the other. Press the pad DOWN at the far end to twist the bar — the hook end lifts and releases the mating keeper ledge; let go and it springs back. Prints flat; the bar flexes in torsion. Includes a matching keeper body. Set base width, bar length, bar thickness, lever length, hook size and wall thickness.
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Flared / rolled-lip collar
Parametric flared collar: a short ring whose top end turns inward into a lip that snaps over and traps the end of a tube. Made as one revolve. Set tube diameter, wall thickness, height, how far the lip narrows the opening (lip depth), lip height and clearance.
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Jigsaw connector socket
The socket (female) half of a jigsaw interlock connector: a flat square tile with a concave socket on its left edge that captures the jigsaw tab’s bulb, resisting in-plane pull-out. The socket is enlarged by a fit clearance per side so the printed pieces slide together. Set tile size, bulb radius, neck width, thickness and clearance; print flat and pair with the jigsaw tab.
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Jigsaw connector tab
The tab (male) half of a jigsaw interlock connector: a flat square tile with a neck-and-bulb tab on its right edge. The bulb is wider than the neck, so the matching socket captures it and the joint resists in-plane pull-out. Set tile size, bulb radius, neck width and thickness; print flat and slide it into the jigsaw socket.
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Gooseneck flexible arm kit
Parametric ball-and-socket gooseneck (segmented flexible arm): a kit of identical links, each a hollow socket cup, a stem, and a ball. Snap the ball of one into the socket of the next to build a modular coolant-hose / desk-lamp neck that holds whatever pose you bend it to. Set ball / stem diameter, segment length, wall thickness, segment count and the print clearance; dial the clearance to your calibrated printer for a firm, friction-held joint.
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Serpentine flexure spring
Parametric serpentine flexure spring: a flat thin beam folded into a square-wave meander between two mounting tabs, a monolithic compliant spring that travels along the fold axis. Set beam width and length, fold pitch, tab size and thickness. Print flat; it flexes by opening and closing the folds.
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Kerf-bending lattice panel
Parametric kerf-bending / lattice-hinge panel: a flat plate cut with a grid of thin through-slots so it flexes along one axis as a living hinge. Set panel length, width and thickness, the slot length and width, and the row / column counts. Print flat; it bends across the rows.
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Snap-dome button
Parametric snap-dome / membrane button: a thin compliant domed cap on a flat rim that clicks when pressed and springs back. One revolve of a constant-thickness shell, hollow underneath, with a small central vent hole. Set dome diameter, dome height, wall thickness and rim width. Print in a springy filament for real snap action.
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Cabinet / cup hinge
Parametric concealed cabinet (European cup) hinge as an assembled four-bar kit: a door cup with the cup recess and screw holes, a mounting baseplate, and two crossing links — four flat-printable parts laid apart on the plate. Assemble the four bars with pins (a length of filament or a thin rod through each pivot bore) so the door swings and pulls clear. Set cup diameter / depth, thicknesses, plate sizes, screw and pivot bores, clearance.
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Jansen linkage leg kit
Parametric Jansen linkage leg kit: Theo Jansen's Strandbeest walking leg as a flat kit — the crank and binary bars plus the two triangular leg links, sized by the eleven holy numbers. Pin them per a Jansen diagram and turn the crank for the gait. Set the overall scale, link width, thickness and bore.
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Klann linkage leg kit
Parametric Klann linkage leg kit: a walking-leg (spider) mechanism as a flat kit — a crank, a coupler, two rockers, and two triangular leg links. Pin them per a Klann diagram and turn the crank for the gait. Set the base unit, link width, thickness and bore.
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Sarrus linkage kit
Parametric Sarrus linkage kit: a base and a platform joined by two perpendicular pairs of hinged side plates, giving pure straight-line up/down motion (no slides). Six flat plates laid out for printing — pin the folding edges. Set platform size, side-plate height, thickness and bore.
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Trammel of Archimedes kit
Parametric Trammel of Archimedes (ellipse drawer / do-nothing machine): a cross base plate with two perpendicular straight slots, plus an arm bar carrying two slider pegs and a tracer point. Slide the pegs in the slots and turn the arm — the tracer sweeps an ellipse of semi-axes a and b. Set plate size, slot length, arm length, peg offsets and pin-bore diameter; print the pegs separately or use bolts.
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Scott-Russell straight-line kit
Parametric Scott-Russell exact straight-line linkage kit: a coupler bar (twice the crank, with a mid pivot), a crank equal to the half-coupler, and a slotted guide rail. Pin the crank to ground and the coupler midpoint to the crank, slide the bar end in the rail slot — the far end traces an EXACT straight line. Set one base crank unit to scale the whole mechanism, plus link width, thickness and bore.
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Friction hinge
Parametric print-in-place friction hinge: prints already articulated and HOLDS any angle it is set to (laptop-lid / monitor-arm style). Leaf A carries an integral pin core; leaf B rides it on annular knuckles with a tight friction gap — small enough that the contact drags and the joint stays put. Set knuckle diameter and width, knuckle count, pin core diameter, leaf length and thickness, the radial friction gap (dial it to your printer: smaller = stiffer), and the axial knuckle gap that keeps the leaves separate.
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