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Explored!
60 units
Designer. Francesco Mancini, Robert Lang
Folder: Francesco Mancini
Paper. Copy
Unit size: Rectangle 1:4.6
Reference: Polypolyhedron #31
Thanks to Robert Lang for pointing me in the right direction
Hold on to your hats if you try this one out! Made from the tutorial HERE : theparfaitcafe.com/?p=228.
LI 517 shoves Train 8735 west as it slows for Babylon Interlocking and station, where it will terminate.
Classic right hand, left hand battle. George Kinge/ Lewis Gray trying to steal the Hroch brothers line. Belgium GP. Lommel. 2019.
Five Interlocking Truncated Tetrahedra #2 90 units In my hand.
A new wireframe design, one that I have known was possible for a long time. This solidifies the 20 Triangles compound into a sturdy, decent compound. It has a very Daniel Kwan-esque look to it, which is probably appropriate given that he designed the first 5 Truncated Tetrahedra compound. A cp is up for it, if anyone cares.
Designed by me.
Folded out of Astrobrights copy paper.
The inside of "j" Tower. I do not know if the interlocking machine is original to this particular tower or even to this particular display board.
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I was driving by the former site of the Rockwell Gardens housing project, and I decided to take a few more shots. None of them really convey the awesome emptiness of that lot, but I found of them interesting for other reasons.
This shot is of the treads on this beast. It's probably best viewed large.
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This photo can also be seen in the Wikipedia entry for caterpillar track.
5 Interlocking Irregular Rhombicuboctahedra (v. 3.5) 240 units 3-fold view.
I have long intended to march through 5-compounds of the rest of the viable Archimedeans, and since “Stella Media” necessitated a POV-ray rendering of a truncated icosahedron, I thought I might repurpose the render for a 5-compound. However, this compound of rhombicuboctahedra was rendered long ago and I figured it was well past time that I rendered it first as a warm up. I first conjectured about this compound 12 or 13 years ago, and started a version of it about a decade ago based on a rendering Daniel Kwan made. However, it proved challenging and so was moved to the back burner where it stayed until the beginning of this year. When I started it afresh, it again proved a rather belligerent compound to render, and I had to tweak the original design and modify the original proportions considerably. When the first version failed, I repurposed the units for “Aldebaran.” In the next version, I thinned the proportions, simplified the pocket angles and proportions, and adjusted the pocket angles to narrow the dihedrals on all the rectangular faces, but the inner triangles were still too tight, so I disassembled everything yet again, and adjusted the pocket angles of the interior triangles to decrease the dihedrals there as well. By this point, the paper is fairly tortured and the model is still very rigid, but overall, I think this result is fairly decent. Each rhombicuboctahedron is, of course, tetrahedrally distorted. Further analogous compounds await.
Three different paper proportions.
Designed by me. Folded out of copy paper.
3 Interlocking Irregular Gabled Rhombohedra 54 units 2-fold vertex view.
I have considered making a compound of these shapes for some time now. Each polyhedron has nearly regular pentagonal faces. I am considering a 15 compound as well.
3 different paper proportions.
Designed by me.
Folded out of copy paper.
Conrail westbound mid train helpers coming out of Altoona Pa. at Slope Interlocking. This train had four locos up front and two more on the rear end. SD45-2's with 6661 being ex EL 3676 and 6655 being ex EL 3670. Howard Kent Jr. 07-02-1978.
Five Interlocking Irregular Hyperboloidal Dodecaugmented Cuboctahedra 120 units
5-fold view.
So, this is the first serious project I have done in awhile. Each frame here is akin to Aaron's Five Tetrahedrically Distorted Self-Intersecting Cuboctahedra, but woven in a different fashion that causes the small exterior triangles to have space between them. Interestingly, if you strip the exterior triangles off, you end up with PPH#54. The model is a little tight with the existing proportions, so I will refold it eventually.
Designed by me.
Folded out of copy paper.
A Keolis/MBTA rail train is making a rare trip north on the Framingham Secondary. The train had been dumping rail along the Franklin Line over the weekend, but the rest of the strings were for north side projects. Not wishing to take the train through the wye connector and thread thru Cove interlocking required this rare move. The train left with a south side Keolis crew on board from the siding in Foxboro. After crossing the diamond in Walpole they paused to pick up a Mass Coastal Railroad pilot for the trip from Walpole to Framingham. The connection from the secondary to the Worcester Line main (former B&A) is westbound only so the train had to pull down past CP22 by Nevins Yard and then shove up the west leg of the wye into CSXT's north yard to turn their whole train before pulling down the east leg to CP21. From there it was an 18 mile sprint east to CP3, where another reverse move was required to switch back into the remains of Beacon Park yard where the north side work train crew met them with a switch engine to pull the whole train over towards BET.
The 12 miles from Walpole to Framingham is normally freight only and Keolis crews aren't qualified on this route so it is a bit of a rare occurrence. Built as the Mansfield and Framingham Railroad in 1870 the 21 mile route between its two namesake points came under the aegis the Old Colony Railroad in 1879 and then the New Haven in 1893 when that system absorbed the OCRR. 40 years later passenger service ended, but for the past 86 years the line has been an important freight route. Passing from the NH to PC, CR and ultimately CSXT the line was sold by the latter in June 2015 to MassDOT for $23 million. The line is now dispatched and maintained under contract by Mass Coastal (hence the MC pilot) but still served by CSXT which owns the perpetual freight rights. This branch line is a 10 MPH railroad that normally sees 4 trains a day on its fairly flat route through wooded semi rural and suburban Boston bedroom communities.
It's not a particularly scenic route but this obscure location on the Medfield - Sherborn Line offers some charm. This shot require a mile hike in on some bucolic trails in the Rocky Narrows preservation to this crossing of the Charles River.
It's quiet and peaceful here and teaming with wildlife. I saw turtles and a snake while waiting for the train as well as a family enjoying the canoe trail along the calm river. A mix of state land and trustees property this is a special place and truly one of my favorites in the area.
In 1897, renowned landscape architect Frederick Law Olmsted, Jr., acting as acquisition agent for Augustus Hemenway, deeded to The Trustees of Reservations 21 acres on the river known as Rocky Narrows, the “Gates of the Charles.” It became The Trustees’ first reservation. Additional land donations and acquisitions over the years has grown the reservation to 274 acres. It also abuts the Charles River State Reservation and the Sherborn Town Forest creating a fairly large swath of undeveloped wildland in this heavily populated portion of the commonwealth.
Anyway, I've always loved this scene and longed to get just the right shot here, but it requires a fairly early morning train. CSXT's normal schedule just doesn't work for it, but this extra was timed perfectly, so I knew it was worth the couple mile hike.
Here is third unit, MBTA F40PH-2C 1059 crossing the Charles River bridge at MP 15.35 heading north to Framingham.
Sherborn, Massachusetts
Monday June 8, 2020
Designed in August 2013, folded from a hexagonal piece of paper.
This model is a variant of Tumbling Blocks, but much more difficult to fold.
The crease pattern is here.
I stumbled on this gallery as I was photographing the Nan Lian Gardens. All the signage was in Chinese and there is a dearth of information on the net but the gallery’s purpose is visually apparent. The Chinese Timber Architecture Gallery shows, in miniature, how many of the buildings in both the garden and the adjacent nunnery were constructed. The elaborate chocks, blocks and joins that hold the roof together, without the benefit of nails, is put on display. The designs are both elaborate and attractive. Impressed!
Where does a "Big Fig" hang out nowadays, were he knows he won't be out of place among your legions of minifigures.
Our "Big Fig" bases, that's where! With the amount of custom "Hulk" size custom figures, showing up, we created a line of detailed display bases to showcase them properly, in all their "Big Fig" glory. These unique bases are cast in resin plastic, hand painted, then sealed for protection.
All of these bases are compatible with all "Big Fig" size large & small minifigures. They also interlock with similar bases designed by us to create a custom Display piece. All vertical back pieces are removable/interchangeable with other bases to further your choice of creative display combinations.
Other breakthrough designs are already in the works, for release in the next few months, as well as a hanging bracket, specially designed to wall mount your custom combination display of up to 8 bases wide!.
Pricing to be announced in the next few weeks.
Please FM us for all inquiries at the present time.
The metal panelled fence that tops the sea wall near Tollesbury is a great photographic subject! I love the way the metal panels are 'locked' together!
42 Interlocking Pentagons 210 units 5-fold view.
This compound really needed a refold in a better quality paper. More than simply a matter of aesthetics, this paper, being stiffer and heavier, will hopefully prevent the model from collapsing under its own weight, as the first one was beginning to do. I also took the opportunity to decrease the paper proportions a little and altered the pocket angle to narrow the dihedral angle of the units slightly.
Designed by me.
Folded out of Cordenons' Stardream paper.
CSS 804 is captured bringing a short manifest freight West over the newly constructed 10th St. interlocking that is shared with Amtrak. This is MP 34.6 on the South Shore Line in Michigan City Indiana.
September 2, 2023
Mechanical interlocking machines were used to control the signals and switches at certain junctions where control was best handled by an operator on the ground. The machine was house in a building called a tower. Each lever controlled a switch, signal blade or lock. The levers were locked together so that a certain order must be followed (i.e. switches must be thrown before the signal can be set to clear). The are also locked to prevent conflicting routes from being set up. For example, if the signal facing eastbound traffic shows "clear", the signal in the opposing direction is physically locked so that it can't display clear until the opposing signal is returned to "stop" . This type of machine was connected to the signals and switches by a mess of cables and linking rods run next to the track. The last installation of this type in the United States was at Brighton Park in Chicago, it closed in 2007. The link has good photos of the signals and linking rods. This video show the same sort of machine in operation in the UK, where this technology originates.
My machine does not use the same methods to lock the levers as the actual machines. However, I was able to mimic the same functions using sliding bars and thread. This machine is my prototype and will have ten levers when I have the parts. All levers are interlocked to each other completely, making it is impossible to give conflicting routes.
Ultimately I'm not building one machine but rather, I'm building principles I can use to make mechanical interlockings for any track diagram. Once I have the prototype machine connected to the appliances and debugged I'll be ready to start a more complicated installation.
Back in the early eighties, eastbound freight from Streator, Illinois crosses the former Nickel Plate. This is Osborn Tower, that was located in Hammond, Indiana's Hessville section.
Insensible à la modernisation inévitable des signaux sur les voies aux alentours, le vénérable signal à lentilles gouvernant les trains en direction est sur la traversée de voie à De Beaujeu se tient toujours debout - pour l'instant du moins. Ni VIA Rail, ni le CP ne semblent désireux de modifier les paramètres du module de signalisation automatique à cet endroit, ce qui devrait nous permettre de l'observer pendant encore quelques années. / As searchlights signals on nearby trackside locations inevitably fall to a wave of modernization, this old searchlight signal governing eastbound movements across the diamond at De Beaujeu is not going anywhere, for now at least. Neither VIA Rail nor CP seem in a hurry to modify the parameters of the automatic signal box for this diamond, which should make it safe for a few years.
in the first snow.
I'm not sure, if someone has made it before. It looks very simple. And I'm also not sure, if this is only a subfigure of a bigger stucture.
It has a 3-fold-axis and three 2-fold-axes. Here is the model along the different symmetries.
folder: Dirk Eisner
designer of the unit: Tomoko Fuse, Francis Ow, Dirk Eisner
36 units
last unit: 05.12.2012
paper: metallized kraft paper
paper size: with the method by Tomoko Fuse 1 : 1.5
I used an extra amount of paper at each end, that is only 3/4 of the width of the frame, to get nicer vertices. So I used 1 : 1.375 .