Prototype Specifications

 

Note:    The following specifications are solely based on the prototype device.  Specifications for production grade system will vary with final components chosen.

 

Quality

Nominal Value

Unit

 

 

 

Motors

 

 

SureStep stepper motor (STP-MTRH-23079), NEMA 23 frame size, single shaft, 1.8 degree/ full step

286

(2.02)

oz-in

(N-m)

Voltage

32 to 70

VDC

Current

5.6

A/phase (max)

Resistance

0.4

Ω/phase

Inductance

1.2

mH/phase

Weight

2.4

(1.1)

lbs

(kg)

 

 

 

PLC

 

 

Arduino MEGA 2560

16

MHz

Input Voltage (Recommended)

7 to 12

VDC

Input Voltage (Limits)

6 to 20

VDC

Current

40

mA/IO pin

Flash Memory

256

KB

Default Matlab serial comms speed

115

kBaud

USB 2.0

 

 

 

 

 

Stepper Drivers

 

 

Pololu A4988

 

 

Input Voltage

8 to 35

VDC

Output Current

1

A/phase (max)

Output Current (with forced cooling)

2

A/phase (max)

Step Range

1/16 to 1

 

 

 

 

Workstation

 

 

Windows 7 (32 bit) PC

 

 

Matlab r2013a

 

 

RAM

4

GB

USB 2.0

35

MB/s

Output Device Voltage

5V +/- 5%

VDC

Output Device Current

100

220

mA

mA (max)

 

 

 

 

 

 

Camera

 

 

Resolution

640 x 480

pixels / sq-in

Color Type YUY2

16

bits / pixel

Optical Zoom

0 to 300

multiplier

USB 2.0

 

 

 

 

 

Gantry

 

 

Dimentions (Outer Frame)

 

 

width

60

in

depth

60

in

travel width (x axis motion)

54

in

Dimention (y axis)

 

 

width

9

in

depth

60

in

travel depth

54

in

Carriage

9 x 9 x 4

in-cu

Cable Spindles

~1

in diameter

Cable, steel, twisted

~3/32

in diameter

Overall maximum camera travel area

45 x 45

in-sq

 

 

 

 

Detailed linear bearing information (constructed for the prototype) is not included as this is outside the scope and objective of this project.  Being that size of the machine was not critical to show proof of concept, gantry dimensions where shrunk from the first semester project as to make the device more portable.

II.        Recommended Specifications

 

Note:    Overall physical dimensions will be subject to the linear motion system chosen for the production system.  The important factor will be maximum travel area.  The plot tables in use by BTCO are 128 inches wide by 42 inches deep.  Therefore the minimum camera travel area is 128 x 42 in-sq.

Quality

Nominal Value

Unit

 

 

 

Motors

 

 

SAME AS PROTOTYPE

 

 

 

 

 

PLC

 

 

NOT YET CHOSEN

 

 

 

 

 

Stepper Drivers

 

 

SureStep Microstepping Drive (STP-DRV-80100)

 

 

Input Voltage

24 to 80

VDC

Output Current

0.1 to 10.0

A/phase

Recommended Input Protection (time delay fuse)

6.25

A

Operation Temperature

0 to 55

deg C

 

 

 

Workstation

 

 

SIMILAR TO PROTOTYPE

 

 

 

 

 

Camera

 

 

Resolution (minimum)

8

MPixels

Lens Focal Length (mimimum)

1.5

in

RGB or YUY2 format

 

 

Lens Type

Parallax Correct

 

Lens Filters (recommended based on table light color)

 

 

 

 

 

Gantry

 

 

Minimum camera travel area

128 x 42

in-sq

 

 

 

Power Supply

 

 

SureStep Power Supply (STP-PWR-7005)

 

 

Input Voltage

120 / 240

VAC

Input Current

7

A

Output Voltage (@ Full Load)

70

VDC

Output Current

5

A

 

 

 

 

 

 

Note:    Further information can be obtained from the following sources.

Motor Data Sheet: http://www.automationdirect.com/static/specs/surestepmotors.pdf

Motor Drive Data Sheet: http://www.automationdirect.com/static/specs/surestepdrive.pdf

Power Supply Data Sheet: http://www.automationdirect.com/static/specs/suresteppower.pdf

 

III.       Standards

 

The following standards should be adhered to during the construction, assembly, and operation of this device wherever applicable and possible.

1. NFPA 70 (National Electrical Code)

2. NFPA 70E (National Standard for Electrical Safety in the Workplace)

3. USB 2.0 (Serial Communications Port Standard)

4. UL Listed (Underwriters Laboratories Approved Components)

5. ADA (Americans with Disabilities Act)