Centrifugal Pump Impeller

This model is actually was part of work of my friend. He was having problem reading the drawing file so he asked me if I could help me making this part. At start I was thinking where to start but it was fun modeling this little part as help for my friend. This is actually part of Steam turbine assembly. This part is totally accurate.

Download Model

CRT Monitor

This is also one of the model made only using Surfaces. This one was typical since this is modeled as a single part and only surfaces. Tried my best to get to details. This model helped me learn a lot.

Download Model

Scooter Handle

This is one of the Surface models I modeled just by visualizing the product. In start it was difficult but as soon I started to spend time I found it better than modeling with Solids. This one represents the Bajaj Chetak 2 Stroke of my father.

Download Model

Apple iPhone 4S

The iPhone 4S is a touchscreen-based smartphone developed by Apple Inc. It is the fifth and recent generation of the iPhone and retains the exterior design of its predecessor, the iPhone 4, but is host to a range of improved hardware specifications and software updates. The phone added a voice recognition system known as Siri, for which the S in the product's name stands, and a cloud storage service named iCloud. Some of the device's functions may be voice-controlled through Siri.

Download model

Plummer Block

A pillow block, also known as a plummer block or bearing housing, is a pedestal used to provide support for a rotating shaft with the help of compatible bearings & various accessories. Housing material for a pillow block is typically made of cast iron or cast steel.

Download model

Leaf Spring

Leaf spring is a simple form of spring, commonly used for the suspension in wheeled vehicles. It is also one of the oldest forms of springing, dating back to medieval times.An advantage of a leaf spring over a helical spring is that the end of the leaf spring may be guided along a definite path.Sometimes referred to as a semi-elliptical spring or cart spring, it takes the form of a slender arc-shaped length of spring steel of rectangular cross-section. The center of the arc provides location for the axle, while tie holes are provided at either end for attaching to the vehicle body. For very heavy vehicles, a leaf spring can be made from several leaves stacked on top of each other in several layers, often with progressively shorter leaves. Leaf springs can serve locating and to some extent damping as well as springing functions. While the interleaf friction provides a damping action, it is not well controlled and results in stiction in the motion of the suspension. For this reason manufacturers have experimented with mono-leaf springs.

This spring is modeled in SolidWorks keeping a numerical problem on Leaf spring in mind (Source :- Mechanical Machine Design by R.S.Khurmi)

Specs :-

No. of Leaves = 12

Length = 1050mm

Load = 5.4KN

Download Model 

Turbine Rotor

A turbine is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and water wheels. Rotor is the rotating part, and the stator is the stationary part of the machine.

Download Model 

Pump Housing

This model was actually a challenge to my friend Jatin Sapra who recently started CAD (NX). He was not practicing enough so I had to make sure he does. Used a drawing file from my own Facebook page and modeled it. Challenge for me was to model it in as many CAD softwares as possible. Finally successfully modeled it in SolidWorks / NX / CreoElements / Autodesk Inventor /CATIA.

 

Download Model

Angle Measuring Device

This is a device which is used to measure angle values larger than 90º and lesser than 240º. I assume this is first of it’s very own kind. It consists of four parts. I had designed it in SolidWorks with all care. This is designed for Useful 3D Printed Tool Challenge. Since the challenge name says useful, so I had made something that is very useful in measuring angles between two surfaces. In the competition this model got first place.

 

Download model

Halo Magnum Gun

The M6G Magnum is a dual-wieldable semiautomatic pistol that does great damage to shields and flesh, has a headshot bonus, and is accurate out to medium range. It resembles Halo's M6D Magnum, but lacks a scope and does slightly less damage. The model is totally based on Game weapon. Being a fan of Halo I always wanted one Gun. So modeled my own. Luckily won 3D printing Challenge on GrabCAD and got my own 3D printed of model.

Download model

Lego Skeleton

The idea for this model was kind of free. I was having some free time and looking Google for something interesting to model except something mechanical. While wandering on Google images for a little while I found a cute pic of Lego man. A little more search and I find the Lego Skeleton pic. I modeled this entirely in free time. This model is not about perfection but only for fun. 

Sometime evil things can also be cute. Although it doesn't even looks evil. The model has actually not modeled keeping dimension in mind, totally freehand. 

Download Link

Rolls Royce Trent 1000 Turbofan Engine

The Rolls-Royce Trent 1000 is a turbofan engine, developed from earlier Trent series engines. The Trent 1000 powered the Boeing 787 Dreamliner on its maiden flight, and on its first commercial flight.The Trent 1000 family makes extensive use of technology derived from the Trent 8104 demonstrator. In order to fulfill Boeing's requirement for a "more-electric" engine, the Trent 1000 is a bleedless design, with power take-off from the intermediate-pressure (IP) spool instead of the high-pressure (HP) spool found in other members of the Trent family. A 2.8 m (110 in) diameter swept-back fan, with a smaller diameter hub to help maximize airflow, was specified. The bypass ratio has been increased over previous variants by suitable adjustments to the core flow. A high pressure ratio along with contra-rotating the IP and HP spools improves efficiency, and the use of more monolithic parts reduces the parts count to minimise maintenance costs. A tiled combustor is featured.

Full Album

Torsen Differential

The Torsen differential works just like a conventional differential but can lock up if a torque imbalance occurs, the maximum ratio of torque imbalance being defined by the Torque Bias Ratio (TBR). When a Torsen has a 3:1 TBR, that means that one side of the differential can handle up to 75% while the other side would have to only handle 25% of applied torque. During acceleration under asymmetric traction conditions, so long as the higher traction side can handle the higher percentage of applied torque, no relative wheelspin will occur. When the traction difference exceeds the TBR, the slower output side of the differential receives the tractive torque of the faster wheel multiplied by the TBR; any extra torque remaining from applied torque contributes to the angular acceleration of the faster output side of the differential.

Torsen differentials are used in many of the various Audi Quattro models, excluding the A3 & S3 and TT (which have transverse-mounted engines and use Haldex Traction 4WD systems).

Full Album

Epicyclic differential

An epicyclic differential uses epicyclic gearing to split and apportion torque asymmetrically between the front and rear axles. An epicyclic differential is at the heart of the Toyota Prius automotive drive train, where it interconnects the engine, motor-generators, and the drive wheels (which have a second differential for splitting torque as usual). It has the advantage of being relatively compact along the length of its axis (that is, the sun gear shaft).

Epicyclic gears are also called planetary gears because the axes of the planet gears revolve around the common axis of the sun and ring gears that they mesh with and roll between. In the image, the yellow shaft carries the sun gear which is almost hidden. The blue gears are called planet gears and the pink gear is the ring gear or annulus.

 

Download Model

Trebert Four Cylinder Stationary Axial Type Engine

The air-cooled engine had four axial cast-iron cylinders and a central rotary valve, which communicated with the small finned cylinders at the end of the main cylinders, from which the spark plugs protrude. The stationary valve had a one inlet and one outlet port on its periphery, connecting to the radial cylinders as they passed. Since the ports have to open every two revs of the crank the cylinders have to revolve at half engine speed.
The Trebert engine was a rotary; the cylinders and crank case revolved, while the central shaft remaine stationary. This is the only axial engine in this gallery that does not use either a wobble-plate or a swashplate. Instead each axial cylinder drove a small crankshaft, with bevel gears at the inner end of each shaft engaging with a large gear on the central output shaft; power output was taken from the crankcase end. The propeller speed was thus reduced to one-half of crankshaft speed.

Download Model

Full Album