ROMER Absolute Arm Training

I. System Startup

A. Power on the laptop and login using: Account: MAE416lablaptop\nc state university Password: mae@NCSU1401EB3

B. Ensure that the power supply is connected to the ROMER armC. Connect the USB and Ethernet cables from the ROMER arm to the laptopD. Hold down the power button on the ROMER arm base for a few seconds until a beep is

heard and the LEDs illuminate:

E. To move the arm from its resting position, toggle the unlock switch on the base of the arm:

F. Remove the protective cover from the scanner:

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ROMER Absolute Arm Training

G. Attach a probe tip to the scanner by unlocking the “HOLD” lever on the scanner, inserting the desired probe tip (can only be inserted one way), and locking the “HOLD” lever:

H. Switch between probe and scan modes by using the switch on the back of the scanner:

Probe Mode Scan Mode

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ROMER Absolute Arm Training

II. Quick Measurements

A. Right-click on the RDS icon at the right hand side of the taskbar and select “Quick Measure”:

B. Select the type of measurement you would like to makeC. Set the switch on the back of the scanner to probe modeD. Follow the prompt to record the required pointsE. Example: Measuring the diameter of a shaft

a. Click on the “Diameter of a shaft” button:

b. Locate a plane parallel to the circle of interest by touching the plane with the probe tip and pressing the red trigger button on the scanner at three or more points on the plane (holding down the trigger will record multiple points in rapid succession):

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ROMER Absolute Arm Training

c. Click the “Done” button one at least three points on the plane have been recordedd. Now measure at least three points on the shaft by touching the probe tip to the

circumference of the shaft and pressing the red trigger button on the scanner:

e. Press “Done” to view the result:

III. 3D Part ScanningA. Launch the “Geomagic Design X 64” application on the laptopB. Press the “LiveScan” button under the “HOME” tabC. In the “Device Manager” pane to the left, make sure “Romer Absolute” is selected in the

“Device” dropdown menu

D. If not already connected, press the “Connect” button under the “Device” dropdown (the button text will show “Disconnect” when the ROMER arm is connected)

E. Locate the coordinate system by selecting “Datum” in the “Align Type” boxF. Select the desired datum targets (e.g. select the Top, Front, and Right planes)

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ROMER Absolute Arm Training

G. Set the switch on the back of the scanner to probe mode and click the start button:

H. Record the required number of points per datum (e.g. at least three points for a plane) by touching the probe tip to the plane and pressing the red trigger button

I. To move to the next datum, press the “A” button on the scanner located to the left of the red trigger button

J. Once all datum targets have been located, press the “Next Stage” arrow button in the “LiveScan” box:

K. Make sure “Laser Scanner” is selected, set the switch on the back of the scanner is set to scan mode, and click the start button

L. Direct the laser line onto the part so that the point and the line intersect (this helps maintain proper scan depth)

M. Press the trigger button to start scanningN. Scanning can be paused/resumed by pressing the trigger buttonO. When finished scanning, click the stop button:

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ROMER Absolute Arm Training

P. Click the ‘OK’ checkmark in the “LiveScan” box to complete the scan. At this point, you will be prompted to run the optional “Mesh Buildup Wizard”. If you choose not to, the wizard can be run at a later time by click on its icon under the “POLYGONS” tab. Pressing the “F1” key while using the Mesh Buildup Wizard will open a help tutorial with instructions on how to use the wizard

Q. Segment the mesh into regions by clicking the “Auto Segment” button under the “REGION” tab

R. Click the “OK” check button to complete the auto segment

IV. Creating a solid model from a meshFor a good tutorial video, see: https://www.youtube.com/watch?v=DNQRuE4FIEU

A. Add reference geometry to the part by selecting items in the “Ref. Geometry” section of the “MODEL” tab

B. Example: aligning a vector to the axis of a cylindera. Select “Vector” from the “MODEL” tabb. Select “Find Cylinder Axis” from the “Method” dropdown menuc. Use the brush tool to select regions of the mesh the make up the cylinders of

interest. Alternatively, right-click and select “Filter Only” -> “Region” to select an entire region. NOTE: the brush can be resized by holding ALT and left-click.

d. Additional axis constraints can be used, such as specifying the axis direction by selecting the Top plane as normal

e. Click the “OK” check button to add the vectorC. Click the “Mesh Sketch” button under the “SKETCH” tabD. Select the base plane onto which you would like to sketchE. Set the offset distance and silhouette range using the arrow handles on the plane or the

“Add Section Polyline” boxF. Click “OK” to create the mesh sketch

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ROMER Absolute Arm Training

G. Click the “Line” button to add a lineH. Either click to manually draw a line or select mesh lines to automatically fit a line to the

mesh data

I. Click the “Accept Fitting” button or the “OK” button to create a lineJ. Add constraints by selecting two lines and right-clicking. Then select the desired

constraint.K. Repeat this process with various sketch entitiesL. Add dimensions using the “Smart Dimension” toolM. Click the “Exit” button to finish the sketchN. Click on the “Create Solid” or “Create Surface” buttons under the “MODEL” to create an

extrusion from the sketch

V. Transfer solid model to SolidWorks

A. Click on the “SOLIDWORKS” button under the “HOME” tab B. Select “Start From First Feature” to transfer the entire modelC. Click the “OK” check button to start the transfer

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ROMER Absolute Arm Training

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