Most of the work below is the result of using my lathe and my small 3-axis NC (Numerically controlled) routing machine. The NC code was solely developed with our own software tools. I use the IRIT solid modeling environment to create the G-code (the NC tool path) and NCSim to simulate and verify the code before I actually cut. You can also watch a You Tube movie showing the CNC process of many of the models below.
A wall clock, from Mahogany (left) and Oak (right).
A clock made from wooden wheels (using CNC). The clock is operated via wheen number 1 (small wheen on the bottom right) via a step motor controlled by the Arduino controller. The code to operate the controler is avialable here while the CNC code to cut the wheels (from ~6 mm thick birch plywood, in mm, using 1.5mm diameter tool) is available here.
The spirals are mostly turning (of a cylinder) on a lathe. If you need hints how the spirals were made on the lathe, consult the two pictures on the right. This table is made from a Beach tree.
Three interlocking Borromean Rings. Three different wood types (Oak, Mahogany, and Eucalyptus). Can you envision how this object was made? the image on the right gives a hint ("when you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth", Sherlock Holmes).
Penrose triangle is a very well-known so called 'impossible' shape. Try google it. This specific variation of the Penrose triangle is part of my "Escher for Real" and ""Beyond Escher for Real" work. The right image shows the NC simulation on NCSim. Beech wood.
Here is a variation of the David star using two intertwined Penrose triangles. The CNC in action is shown on the right. See also ""Beyond Escher for Real". Gaboon wood.
NC machining of the head of the David's statue. A relief. See NCSim for the NC simulation image.
Thin wall's lamps. Left is made of olive tree, right from cypress tree.
As one of the most famous models in computer graphics and geometric
modeling, here is a wooden version of the Utah Teapot. Yet another
combination of (mostly) CNC (top left), making two half-teapots, and
turning on a lathe (top right) the inside. Beech wood.
Victor Vasarely (1906-1997), the `father' of OpArt, produced several
pictures in which nearly parallel black stripes on a white background
bend and deform locally to produce striking Gestalt 3D effects.
Inspired by Vasarely's art, in this work we produce a 3D wood version
of two such emblems combined together in 3D, Israel's Menorah and the
David star, that are coming to life independently, from two different
viewing angles. Made off sequoia tree, and combined wood turning and
CNC work (left image). Thanks go to Uriel Bareven that helped
slicing this stock, from Sequoia.
Dithering is a process of creating gradual color changes by
using a (small) finite set of colors. Herein, we recreate a
gray level image of Herzl using random black filled curves over
light (birch plywood wood) backround. Each pixel in the original
image on the left (but low resolution sampled to 30 by 30) is
mapped to a black freeform random curve, cut as a hole in a light
wood (next to left image).
The two right images show a zoom-in on a small portion of the
Curves were randomly crafted to cover varying precentages of
the unit (pixel) square and the proper covering curve was selected
based on the gray level of every pixel. These 900 holes where
then cut with the aid of CNC.
The stock from which the earrings were (2mm thick) sliced is shown below. A combination of Ebony, Padauk, and Beech wood. The Ebony was rounded on a lathe.
A wine glass with a knotted neck. The image on the right shows the NC step. Olive tree.
Yet another combination of (very delicate) NC machining and turning.
This time the neck in the shape of a more complex knot (so much so that I decided not to disconnect two joins if you can see them). The left is from olive tree and the right in Indian Rosewood. The NC process is also depicted below.
A gentleman wine glass with a Bow Tie. The rightmost image shows another variant. Olive tree. The images below shows the steps (left to right): the turning, preparation for CNC, and the CNC itself.
A neck formed out of a cross of two (same) letters... Olive tree.
A statue made to look like the Israeli emblem, the Menorah from
one view (left bottom image) and the star of david from
another direction (middle bottom image), from another... Top
two images show the two setups of the CNC stages. Olive tree.
An attempt to manually carve a facial statue. Carved out of an olive tree.
An attempt to manually carve a statue of a man and a woman. Carved out of an olive tree.
One can turn one captured ring on a wine glass. One can turn two captured rings on a wine glass. But can one turn two wine glasses captured in a single ring? It is doable but the version you see here is only a partial proof - the ring here broke in the process and was glued back in... The three images below give you some hints how it can be done (wood turning only and no CNC).
Anti-twins wine glasses. Olive tree.
NC machining was used to cut the David Star shape at the neck. The rest is regular wood turning. The image on the right shows the NC setup. The David Star is actually formed out of two intertwined Penrose triangles. See also ""Beyond Escher for Real". Indian Rosewood.
Here is another variation of this model, this time from an Olive tree.
Here is another variation of the David Star. Herein, the Jewish David Star is shaped to look like the Islamic Crescent Moon symbol from the side. As a result, this model presents the Jewish David Star from one view and the Islamic Crescent Moon from another. The image on the right shows the CNC stage. Indian Rosewood tree.
An example of a spherical bowl with a heart outline on the top. On the left is a snapshot of the CNC in action. Indian Rosewood tree.
Examples of small wooden buckets with wooden chains, built from one wood block (Indian rosewood). The image on the right depicts the CNC step. Indian Rosewood tree.
A combination of NC machining and turning. The image second from the right shows the NC setup while the right image shows the final NC part before turning. Beech wood.
A vase being held by two hands. A combination of NC machining and
turning. The image on the left shows the NC step. The
geometry was creating by deforming a 3D model of a hand using a
geometric modeling technique called freeform deformation, that uses
trivariate splines. Olive tree.
Wicker style tops for wood (olive tree) vessels. The left image shows the CNC stage.
Two cones turned on a lathe, sliced and glued together... Indian Rosewood tree.
This segmented turning piece (a combination of Mahogany and Oak) is created one layer after another, using a Jig that divides the entire circle to 24 parts. The Jig is made of simple 24 170mm radius lines (12 340mm diameter lines) equally spaced around the circle. You can find the CNC G-code for this one here (the cuts are done in 4 mm deep zigzag motion in Z to a total depth of 8 mm). Note the dividers in the Jig can be taken out to create a division of the circle to 12 (as is the case for the first layer in the final piece), 6, 4, or 3 parts.
This segmented turning piece (a combination of Mahogany, Beech and Oak) is created by glowing stripes of the different wood type, as can be seen on the left image, only to diagonally cut circular rings out of the plate using a scroll saw and glow them stacked together (twisted) into a conical shape. The images on the right show two different final results.
Turning the plate on the right is the easy part once you have the board on the left. However, can you envision how the board on the left was made? The original credit should go to this movie
High tea service using three wild chess board plates as above. Interestingly the wavy holder was made using many strips of veneer glued together using the jig shown on the right.
A bowl turned of hexagonal patterning formed out of three types of wood (Beech, Mahogany, and Oak). The left images shows the glued pieces (note the interior pieces are not as high as the outer ones). The original credit should go to this movie
A bowl with Escher-style pattern at the bottom. The lizards were cut (using CNC) from a 3mm Populus plywood only to be water-painted, for the brown and red colors. Then, the pieces were re-glued together.
A box with a cover, both with threadings. Left shows the two parts while the right shows the box closed. Indian Rosewood tree.
A bowl wil handled. Image on the bottom right shows the (fairly) balanced piece on the lather. Oline tree.
Indian Rosewood tree.