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Maquetas2 herramientas

Maquetas y mecanismos que funcionan, para cortar con láser y con ajustes que puedes cambiar. Construye el puente de Leonardo, el escape de Galileo, un microscopio que enfoca o un globo terráqueo por capas, y descubre cómo funciona cada uno mientras lo montas.

Gratis
Generador de engranajes example
Corte láserImpresión 3DCNC

Generador de engranajes

Creador gratuito de engranajes con dientes reales involutos y cicloidales: pares engranados, trenes, juegos planetarios, piñones y engranajes no circulares.

Gratis
Playground de KerfScript example
Corte láserCNC

Playground de KerfScript

Playground gratuito de KerfScript: escribe diseños para corte láser como código, mueve los deslizadores, mira cómo cambian las piezas y descarga SVG o DXF.

Vernier Caliper
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Vernier Caliper

Vernier caliper: a working sliding caliper that reads to a tenth of a millimetre and to 1/128 inch. The main scales are scored along the beam and seen through a window in the slider, whose vernier scales sit right against them. Outside jaws below, inside jaws above. How to read it: the slider's 0 gives whole millimetres on the beam; the vernier line that meets a beam line exactly gives the tenths. Assembly: slide the slider plates over the beam with the spacers above and below it, then rivet or pin them through the holes. Cut it from acrylic or a stable plywood for the best accuracy.

Ball Caster
PersonalizableGratis
Impresión 3D
por Hardware Designs

Ball Caster

A snap-in caster for steel balls, marbles and airsoft BBs from 5 to 40 mm, for robots, carts, drawers and sliding furniture. Two ears, three ears, a round flange or no flange, with an optional riser. Prints flange down with no supports. Press the ball in until the fingers click over it.

Roll-Top Shutter Box
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Roll-Top Shutter Box

Shutter box: a box with a roll-top lid. The lid is a row of slats whose narrow ends ride in a channel inside each side, so it slides back round the curved corner and down behind the back wall. The channel is the gap left between a guide plate and a rim, glued to each side wall. Assembly: glue a guide and a rim to each side wall, fit the front, back and bottom into one side and add the other. Glue the slats face down on a strip of canvas, leaving their ends free, and slide them in from the front.

Pulley Wheel
PersonalizableGratis
Impresión 3D
por Hardware Designs

Pulley Wheel

A grooved sheave for rope, cord and wire, with a seat for a 608, 625 or 623 skate bearing or a plain bore for a bolt. For clothesline pulleys, plant hoists, bike ceiling lifts and kinetic builds. The 45 degree V groove keeps the rope centred. Prints flat with no supports.

Ring Globe
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Ring Globe

Ring globe: a sphere of latitude rings and meridian ribs, slotted into each other with no glue, resting in a cradle of two crossed plates. Each slot is cut half way into the ring and half way into the rib, at the height of that ring, so any number of rings and ribs fits. The ribs stop at the polar rings and never crowd together at the poles. Assembly: slot the ribs into the equator first, then work outwards to the poles, one ring at a time. Slot the cradle plates together.

Relief Globe
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Relief Globe

Relief globe: a desk globe built up in layers, like a contour model. Each layer is a ring one sheet thick, its edge on the sphere over the oceans and standing out over the land, so the continents show in relief from every side as the globe turns. Two crossed plates inside key the rings in line, and solid discs close the poles. Short rods at the poles turn in channels inside a three-layer meridian arc, tilted like the Earth's axis, on a pedestal and a round base. Assembly: slot the two cross plates together. Slide the equator ring over them, its notches on their edges, then the others in order

Leonardo's Polyhedra
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Leonardo's Polyhedra

Polyhedra: the solids Leonardo drew for Luca Pacioli's book On Divine Proportion, built from flat faces. Hollow, each face is a frame, so you see through to the faces behind, as in Leonardo's drawings of the vacuus solids; solid, the faces are plain. Pick a regular solid, a cut one (abscisus) or the raised octahedron with a pyramid on every face (elevatus). Each face's edges are set back just enough for its neighbours, so the faces meet along their inside edges at any size and thickness. Assembly: glue the faces edge to edge around a vertex, then work round. Masking tape on the outside holds t

Grand Piano Music Box
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Grand Piano Music Box

Grand piano music box: a little grand piano that holds a wind-up music box movement. The case is a stack of frames cut to the piano's curve, the keyboard has raised black keys, and the lid lifts on its prop stick to let the tune out. The legs are crossed pairs that plug into the floor. Assembly: glue the frames in a stack on the floor and the cheeks, keys and name board at the front. Screw the movement to the floor with its key through the hole. Slot each pair of leg plates together and plug them in. Glue the two lid layers together, so the hinge screws have wood to bite, and hinge the lid alo

Galileo's Escapement
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Galileo's Escapement

Galileo's escapement: a working model of the pendulum clock Galileo designed in 1641, from the drawing his pupil Viviani made of it. A falling weight turns the pin wheel; a pallet on the pendulum stops the next pin, and each swing lifts the pallet to let the wheel turn one pin on, the pin giving the pallet a push to keep it swinging. The pendulum's lyre opens round the wheel's arbor, and a hand on the arbor counts the beats. Assembly: glue the upright and the brace into the base. Glue the pins into the wheel and the drum discs onto the arbor behind the upright; the arbor turns freely in the up

Microscope Model
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Microscope Model

Microscope: a model of an old brass-and-wood microscope that focuses. Turning either knob turns a pinion between the two walnut limb plates, which drives a rack on the slider, and the slider carries the tube up and down. Two blocks fixed between the plates run in windows in the slider: they keep it against the pinion and stop it at each end of its travel. The tube is a strip bent round by a living hinge on two discs, with a gap at the back where the slider enters it. A stage with clips sits on the limb, and under it a mirror tilts on its tabs. Assembly: glue the slider's two layers together, a

Knuckle Hinge Box
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Knuckle Hinge Box

Knuckle hinge box: a finger-jointed box with its hinge cut from the same sheet. Knuckle plates tabbed into the back wall alternate with knuckles tabbed under the lid, and one rod runs through them all. The lid stays outside a circle round the rod, so it turns clear of the back wall, and an inset plate under it keeps it square when shut. Assembly: glue the box, the wall knuckles and the lid knuckles. Thread the rod through, a snug fit in the wall knuckles and free in the lid's.

Iris Box
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Iris Box

Iris box: a round box whose lid opens like a camera shutter. Eight curved blades meet in the middle; turn the ring on top and pins under it swing every blade out on its own pivot, opening a round hole to reach in. The blades lie flat side by side and never overlap, so they can be cut from a flat sheet: walnut here, against the plywood box. Assembly: plug the staves into the base and the deck and glue them. Glue a pivot pin into each hole in the deck, drop the blades on, and glue the guard ring round them. Glue a drive pin into each hole in the drive ring, set it on with the pins in the blade s

Crankie Story Box
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Crankie Story Box

Crankie: a moving panorama, the old storyteller's box. A long paper scroll winds from one upright spool to the other past a window, turned by the cranks on top. The window's lower edge is a skyline of hills and pines, so the foreground stays still while the scene scrolls behind it, and an open back lets a lamp shine through the paper. The spools are sized from the scroll's length and thickness. Assembly: glue the box together on the plinth, leaving the top loose. Tape the scroll's ends to the dowels, wind it on, drop the dowels through the bottom holes, then fit the top and glue a crank on eac

Layered Camera
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Layered Camera

Camera model: a retro rangefinder camera built up in layers, front to back, with a stacked lens, a knurled focus ring and an acrylic glass. The walnut middle layers make the leather band, and they are hollow, so with the back plate lifted off it is a little keepsake box. Engrave your own name on the front. Assembly: glue the front plate, the band frames and the lens rings in order, lining up the edges. The back plate is a push fit, held by the two corner pins.

Leonardo's Bridge
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Leonardo's Bridge

Leonardo's bridge: the self-supporting bridge Leonardo da Vinci drew around 1485, built from straight sticks with no glue, nails or rope. Each crossbar rides on the ends of one pair of beams and presses down on the middle of the next, so the load locks the weave tighter. The arch is not chosen: it comes from the sticks. Each bend must rise by a crossbar and a beam, and that sets the radius for the angle you pick. Shallow notches seat the beam ends on their crossbars. Assembly: lay the first crossbar on a footing against its stop, rest the outer beams on it, slide the next crossbar under their

Independent wheel calendar
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Independent wheel calendar

Wheel calendar: three independent numeric/date wheels on a tabbed stand. Glue the backboard into the foot, then bolt on the wheels with washers. Read the value beneath each fixed pointer. Set weekday, month and day by hand; there is no automatic month-length or leap-year mechanism.

Laminated screw press
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Laminated screw press

Screw press: laminated platens and hand knobs with captive hex nuts. Clamp the lower platen onto four threaded rods using washers and nuts. Glue the knob laminations around measured hex nuts without gluing the threads. Put washers beneath the knobs and turn them evenly to press. A small craft press for paper and light glue-ups, not for heavy pressing.

Beam balance with suspended pans
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Beam balance with suspended pans

Beam balance: a stable pivoted beam with two level, cord-suspended pans. Glue the fork uprights into the foot and glue a rim onto each pan. Fit the beam on a loose pivot bolt, then tie three equal cords per pan. The tilt control demonstrates motion; it does not calculate equilibrium.

Articulated cable chain
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Articulated cable chain

Cable chain: alternating wide and narrow U-links pivot on bought side bolts. Each link has two cheeks and one tabbed floor bridge. The channel stays open. Assembly: glue each U-link square, then connect adjacent cheeks with short bolts, washers and locknuts. Keep the pivots loose enough to turn freely. This free-pivot prototype has no mechanical bend stops or machine rating.

Wellspring saqiya water wheel
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Wellspring saqiya water wheel

Wellspring: a saqiya, the animal-driven water wheel al-Jazari drew in the 13th century. Turn the ox round its walk and the draw-bar turns a peg wheel above the gear pit; its dowel pegs drive a lantern pinion at right angles, and the wheel on the same axle lifts a ring of pots out of the well and tips them into the trough at the top.

Dabble duck automaton
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Dabble duck automaton

Dabble: a hand-cranked duck automaton on an open cam box. Three cams on a square shaft lift three dowel pushrods through the deck: as you turn the crank the duck dips its head to the engraved pond while its tail tips up, lifts its head again, then raises its wings. The pushrods are only lifted; the duck's own weight keeps them on the cams, so turn it slowly.

Peck pecking hens
PersonalizableGratis
Corte láserImpresión 3D
por Kerf Designs

Peck pecking hens

Peck: the folk toy of hens pecking grain on a round paddle. Each hen's head rocks on a bolt through her body, and a string from her neck runs down through the paddle to a weight hanging below. Hold the handle and swing the paddle in small circles: the weight swings round, pulls each string in turn and the hens peck one after another, their tails bobbing up behind.

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