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EMB-LM1

The EMB-LM1 is a linear slide with an integrated optical linear incremental encoder. With a low friction ball slide, a high resolution linear encoder, and dovetails that easily interface with other EMB modules, the EMB-LM1 is ideal for plants that have translational components, including spring-mass-damper, lever mechanisms, rack and pinion, and belt driven linear slides.

The encoder measures relative displacement, and it uses standard industrial encoder signals (Ground, 5V, A, B, Index), making it easy to connect to microcontrollers as an Arduino or STM32 board, and industrial DAQs such as hardware from National Instruments. The EMB-LM1 is plug-and-play with our DAQs, using one of the encoder inputs.

The standard lines per inch (LPI) is 2000, yielding 8000 counts per inch in 4X reading. We can supply other LPI specs if your application requires, ranging from 120 LPI to 2000 LPI.

The encoder has an index signal at the center of travel.

Key features:

  • Travel: 100 mm

  • Rated Voltage: 5V

  • Incremental Encoder

  • Standard LPI: 2000 (other options available)

  • Ball slide with extremely low friction

  • M4x0.7 tapped holes on both sides and rear side of the module

  • EMB dovetail on top and bottom of the module

  • 2 end plates and fasteners included

  • Connector: M12-5 Pin

  • Anodized aluminum body

  • Encoder and bearing made in the USA

The EMB-LM2 is a linear slide module. It has the same bearing and dovetails as the EMB-LM1, but it does not have the integrated encoder. This module is recommended for applications that do not need direct displacement measurement, for example, spring-mass-damper experiments with accelerometer sensors feedback (instead of encoder). 

Key features:

  • Travel: 100 mm

  • Ball slide with extremely low friction

  • M4x0.7 tapped holes on both sides and rear side of the module

  • EMB dovetail on top and bottom of the module

  • 2 end plates and fasteners included

  • Anodized aluminum body

  • Bearing made in the USA

EMB-LM2

This hard stop is used to prevent potential bearing damage of the EMB-LM1/EMB-LM2 from an end of travel collision. It is also used to limit the amount of travel when using the dashpot. The contact surface is a durometer 70A rubber bumper.

Locating and mounting is done with a fastener (either M6 or 1/4"-20, depending on your breadboard).

Key features:

  • Bumper hardness: durometer 70A

  • Anodized aluminum body

  • Made in the USA

EMB-HARD STOP

This dashpot can be used to create spring-mass-damper plants by connecting it to the EMB-LM1/EMB-LM2.

Adjustment of the damping coefficient is performed by the thumbnut.

Locating and mounting is done with a fastener (either M6 or 1/4"-20, depending on your breadboard). A wrench is included.

Key features:

  • Stroke: 3 in (76 mm)

  • Adjustable damping coefficient: 0-40 lbf-s/in, 0-7 N-s/mm

  • Max Pull damping force: 17 lb (75.6 N)

  • Max Push damping force: 13 lb (57.8 N)

  • Friction coefficient: 0.2

  • Bore diameter: 1.28 in (32.5mm)

  • Anodized aluminum bracket

  • Made in the USA

EMB-DASHPOT

We offer a collection of linear springs (can be purchased individually or as a set) that connect directly to the EMB-LM1/EMB-LM2 to create spring-mass-damper plants. Springs can be connected between EMB-LM1s/EMB/LM2s or have one side grounded with the spring bracket.

Locating and mounting to the breadboard is done with a fastener (either M6 or 1/4"-20, depending on your breadboard).

Key features:

  • Spring length: ~3 in (76 mm)

  • Spring Rate of Spring1: 0.5 lb/in (90 N/m)

  • Spring Rate of Spring2: 1.3 lb/in (225 N/m)

  • Spring Rate of Spring3: 2.6 lbs/in (453 N/m)

  • Spring Rate of Spring4: 4.6 lbs/in (812 N/m)

  • Spring material: Stainless 302 ASTM A313

  • Spring ends: closed and ground

  • Anodized aluminum bracket

  • Made in the USA

EMB-SPRINGS

To change the dynamics of a linear plant, this mass block can be mounted the EMB-LM1/EMB-LM2, increasing the movable mass. Multiple blocks can be stacked.

Locating and mounting to our standard dovetail clamp with a fastener, either M6 or 1/4"-20, depending on your preference. These blocks are electroless nickel plate to provide the best wear and tear resistance possible.

Key features:

  • Machined brass

  • Mass: 275g per block

  • Electroless nickel plate finish

  • Made in the USA

EMB-MASS BLOCK

Very often we find rack and pinion plants in textbooks related to machine design, vibrations, dynamic systems and controls. They are a fantastic way to convert rotary motion into linear motion and are used extensively in industry.

The rack attachment mounts to the rear of the EMB-LM1/EMB-LM2 by two M4x0.7 fasteners, slots allow for height adjustment with a pinion gear. Pinion gear included.

Key features:

  • Rack Module: 1.0

  • Length: 120 mm

  • Includes pinion gear, 20 teeth, stainless steel

  • Anodized aluminum frame

  • Rack made in Japan, pinion made in the USA

EMB-RACK ATTACHMENT

Similarly to the rack and pinion, a belt driven linear plant converts rotary motion into linear motion.

Popular uses for belt driven linear motion systems include 3D printers, inkjet printers, and pick and place machines.

The belt attachment mounts to the rear of the EMB-LM1/EMB-LM2 by M4x0.7 fasteners, slots allow for height adjustment with the pulleys. An open belt or closed belt can be clamped. 1 meter of open belt included.

Key features:

  • Belt Pitch: MXL

  • Includes 1 m of open belt

  • Anodized aluminum frame

  • Clamp made in Japan

EMB-BELT ATTACHMENT

The cam attachment mounts to the rear of the EMB-LM1/EMB-LM2 by M4x0.7 fasteners. With this attachment, students can explore plants with radial cams with a roller follower. The cams can be created using rapid prototyping manufacturing (3D printing or laser cutting, for example), and mounted to a rotary EMB module using a shaft collar (EMB-Flange Shaft Collar or EMB-Flange Shaft Collar MXL). 

If the EMB-LM1 linear slide with integrated encoder is coupled with the EMB-SM1 rotary encoder module via a cam, the students can gather rotary data and linear data, for analysis of SVAJ plot comparison.

Key features:

  • Roller diameter: 13 mm 

  • Roller width: 9 mm

  • Stainless Steel roller follower (THK)

  • Anodized aluminum frame

  • Roller follower made in Japan

EMB-CAM ATTACHMENT

The brake attachment mounts to the rear of the EMB-LM1/EMB-LM2 by M4x0.7 fasteners and an aluminum disc mounts to a rotary shaft in parallel orientation to the magnet face. A small gap between the magnet and the disc allow for rotation and translation motion. Braking is caused by Eddy currents. Note that there's no contact, therefore, friction between the magnet and the disc. This attachment can be used to cause a disturbance or load to the rotary disc.

Key features:

  • Disc diameter: 76 mm (~3in)

  • Magnet diameter: 13 mm

  • Neodymium magnet (Made in Germany)

  • Anodized aluminum frame and disc

  • Made in the USA

EMB-BRAKE ATTACHMENT

EMB-PENDULUM ATTACHMENT

The inverted pendulum plant is a classic example in Dynamic Systems and Controls textbooks. The EMB-Pendulum attachment lets the user create self-erecting, inverted, and non-inverted pendulum plants.

It mounts to the top dovetail of the EMB-LM1/EMB-LM2. The pendulum arm can be attached to the EMB-SM1 or EMB-SM2 modules, giving the flexibility for the user to choose an encoder or potentiometer as sensor. The dynamics of the pendulum can be adjustable, by changing the position of the mass (can be removed or placed anywhere along the length of the rod).

Swing up controllers, balance controllers, pendulum dynamics modeling, and study of gantry controllers are among the application areas for this attachment. The base is driven via the rack and pinion or belt attachments, for example. Sensor not included with this attachment.

Key features:

  • Rod length: 200 mm (other lengths available, from 150 mm to 400 mm)

  • Bore diameter: 6 mm (mounts to other EMB shafts)

  • Adjustable dynamics

  • Self-erecting, inverted, and non-inverted operation

  • Mounts to EMB dovetails

  • Stainless Steel rod and mass

  • Mounting plate and clamps, anodized aluminum

  • Made in the USA

For a quote or to place an order, contact us.

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