Changes for page Arm Gripper FSR Assembly Guide
Last modified by Eric Nantel on 2024/07/03 09:21
Change comment: Upload new image "rios02.jpg", version 1.1
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... ... @@ -1,177 +1,3 @@ 1 1 {{html wiki="false" clean="true"}} 2 -<body><table border="0" cellpadding="0" cellspacing="0" > 3 - <tbody><tr> 4 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Arm Gripper FSR Assembly Guide.<br> 5 - <font size="2" face="Verdana, Helvetica, sans-serif">Updated <!--webbot bot="Timestamp" startspan s-type="EDITED" s-format="%m/%d/%Y" -->06/10/2009<!--webbot 6 - bot="Timestamp" i-checksum="12514" endspan -->.</font></b></p> 7 - <p><font size="2" face="Verdana, Helvetica, sans-serif">This tutorial will guide you through the process of building and setting up your arm 8 - gripper sensor. The sensor used is a Force Sensing Resistor, FSR for short.</font></p> 9 - <p><font size="2" face="Verdana, Helvetica, sans-serif">The <a href="http://www.lynxmotion.com/showproduct.aspx?productID=627&CategoryID=8">FSR-01</a> kit includes one 10 - FSR and a rubber bumper. You will need to provide the following:</font></p> 11 - <p><font size="2" face="Verdana, Helvetica, sans-serif"> o 24" Servo Extender Cable (<a href="http://www.lynxmotion.com/showproduct.aspx?productID=227&CategoryID=44">SEA-03</a>)<br> 12 - o Electrical tape.<br> 13 - o Heat shrink.<br> 14 - o Solder.<br> 15 - o Nylon wire tie.<br> 16 - </font></p></td> 17 - <td align="center" valign="top" width="320"><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/grips00.jpg" border="2" hspace="10" width="320" height="240"><br> 18 - <font size="2"><b>Image of sensor on gripper.</b></font></font></td> 19 - </tr> 20 - <tr> 21 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 22 - </tr> 23 - <tr> 24 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 1.</strong><br> 25 - Use an exacto knife to carefully peel away the <b>CLEAR plastic </b>piece covering the black adhesive. <b>Be very careful doing this!</b> If not 26 - done carefully the sensor can be damaged!</font></td> 27 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/fsrft04.jpg" border="2" hspace="10" width="320" height="240"><br> 28 - Figure 1.</font></td> 29 - </tr> 30 - <tr> 31 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 32 - </tr> 33 - <tr> 34 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 2.</strong><br> 35 - Stick the adhesive side of the sensor to the inside of the gripper as shown. Make sure you position the sensor between the screw holes.</font></td> 36 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/grips01.jpg" border="2" hspace="10" width="320" height="240"><br> 37 - Figure 2.</font></td> 38 - </tr> 39 - <tr> 40 - <td valign="top" align="left" colspan="2"><br class="pb"> 41 - </td> 42 - </tr> 43 - <tr> 44 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 3.</strong><br> 45 - Cover the sensor with electrical tape. This will help hold it down.</font></td> 46 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/grips02.jpg" border="2" hspace="10" width="320" height="240"><br> 47 - Figure 3.</font></td> 48 - </tr> 49 - <tr> 50 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 51 - </tr> 52 - <tr> 53 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 4.</strong><br> 54 - Peel an adhesive-coated bumper off of the paper, and stick it firmly over the sensor as shown.</font> 55 - <p><font face="Verdana" size="2">Note, this should be centered precisely on top of the FSR. We chose clear rubber bumpers to make this easier.</font></p> 56 - </td> 57 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/grips03.jpg" border="2" hspace="10" width="320" height="240"><br> 58 - Figure 4.</font></td> 59 - </tr> 60 - <tr> 61 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 62 - </tr> 63 - <tr> 64 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Step 5.</b><br> 65 - There are several ways to use an FSR. Depending on how you set up the FSR, the values returned will be different. <b>Remember to use heat shrink</b> 66 - to avoid shorts! </font> 67 - <ul> 68 - <li><font size="2" face="Verdana, Helvetica, sans-serif">For standalone arms, use the "Basic Config" section of Figure 5.</font></li> 69 - <li><font size="2" face="Verdana, Helvetica, sans-serif">For arms on A4WD1 rover, use the "Other Config" section of Figure 5.</font></li> 70 - </ul> 71 - </td> 72 - <td align="center" valign="top" ><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/diag01.jpg" border="2" hspace="10" width="320" height="240"><br> 73 - <font size="2">Figure 5.</font></font></td> 74 - </tr> 75 - <tr> 76 - <td valign="top" align="left" colspan="2"><br class="pb"> 77 - </td> 78 - </tr> 79 - <tr> 80 - <td valign="top" align="left" colspan="2"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Sensor Output Chart</b></font><font face="Verdana, Helvetica, sans-serif"><b><font size="2">.</font></b><font size="2"><br> 81 - Refer to the following chart for expected pressure vs voltage values.</font></font> 82 - <p align="center"><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/chart01.jpg" border="2" hspace="10" width="480" height="361"></font></p> 83 - </td> 84 - </tr> 85 - <tr> 86 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> <br> 87 - </font></td> 88 - </tr> 89 - <tr> 90 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 6.</strong><br> 91 - Attach two 3mm screws in the screw holes as shown. Don't tighten them too much, or the sensor will bend. Carefully bend the sensor wires to lie 92 - between the screws. Make sure you don't try to bend the sensor tail too sharply! Secure the sensor tail and wires with a wire tie as shown.</font> 93 - <p><font face="Verdana" size="2">Mount the gripper onto the arm, and route the sensor wires.</font></p></td> 94 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/grips05.jpg" border="2" hspace="10" width="320" height="240"><br> 95 - Figure 6.</font></td> 96 - </tr> 97 - <tr> 98 - <td valign="top" align="left" colspan="2"><br class="pb"> 99 - </td> 100 - </tr> 101 - <tr> 102 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 7.</strong><br> 103 - For this tutorial, we'll be plugging the sensor wires into the SSC-32, for RIOS. This means a slight modification of the cable is necessary. 104 - Simply remove the yellow wire from the housing, and cover it with heat shrink to prevent shorts. Now plug the black wire in (-), the red wire in 105 - (+), and the yellow wire in either A, B, C, or D, as shown in the diagram.</font> 106 - <p><font face="Verdana" size="2">If you're not using RIOS and are using a Bot Board instead of an SSC-32, no cable modification is needed. 107 - Simply plug the cable in to AX0-AX3. Make sure the yellow wire goes toward the center of the board.</font></p></td> 108 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/diag02.jpg" border="2" hspace="10" width="320" height="240"><br> 109 - Figure 7.</font></td> 110 - </tr> 111 - <tr> 112 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 113 - </tr> 114 - <tr> 115 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Step 8.</b><br> 116 - Now run RIOS. Click on the "SSC-32" button in the upper left corner of the screen.</font> 117 - <p><font size="2" face="Verdana, Helvetica, sans-serif">Select "A" on the sensor input corresponding to the pin you plugged the sensor 118 - into. You can gently press on the sensor to test connectivity. You should see a bar indicating sensor pressure.</font></p> 119 - <p><font size="2" face="Verdana, Helvetica, sans-serif">When you're done, save and exit this screen.</font></p></td> 120 - <td align="center" valign="top" ><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/rios01.jpg" border="2" hspace="10" width="320" height="240"><br> 121 - <font size="2">Figure 8.</font></font></td> 122 - </tr> 123 - <tr> 124 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 125 - </tr> 126 - <tr> 127 - <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step 9.</strong><br> 128 - Click on the "Moves" button. In the lower left corner, press the black + in the projects section to create a new project.</font> 129 - <p><font face="Verdana" size="2">Now use the gripper close button in the upper right corner to close the robot's gripper completely. Press the 130 - green + in the step section to add the closed gripper as a new step.</font></p> 131 - <p><font face="Verdana" size="2">Change the "no input action" drop down to "stop this step", and select the input 132 - corresponding to the pin your sensor is plugged into.</font></p></td> 133 - <td align="center" valign="top" ><font face="Verdana" size="2"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/rios02.jpg" border="2" hspace="10" width="321" height="240"><br> 134 - Figure 9.</font></td> 135 - </tr> 136 - <tr> 137 - <td valign="top" align="left" colspan="2"><br class="pb"> 138 - </td> 139 - </tr> 140 - <tr> 141 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Step 10.</b><br> 142 - Press the green + in the step section to create a new step. Now enable "gripper load" - it's the gripper button just above the Outputs 143 - section. When gripper load is enabled, the gripper picture will be holding a red ball.</font> 144 - <p><font size="2" face="Verdana, Helvetica, sans-serif">While gripper load is enabled, the gripper won't open or close again until gripper load 145 - is disabled. This allows the arm to skip gripper-open and gripper-close steps until the object is deposited.</font></p></td> 146 - <td align="center" valign="top" ><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/rios03.jpg" border="2" hspace="10" width="321" height="240"><br> 147 - <font size="2">Figure 10.</font></font></td> 148 - </tr> 149 - <tr> 150 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 151 - </tr> 152 - <tr> 153 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Step 11.</b><br> 154 - Use the the gripper open button in the upper right corner to open the robot's gripper completely. Press the green + in the step section to add 155 - the opened gripper as a new step.</font> 156 - <p><font size="2" face="Verdana, Helvetica, sans-serif">Now disable gripper load. This will allow the gripper to open again.</font></p> 157 - <p><font size="2" face="Verdana, Helvetica, sans-serif">Click on "Play" in the lower right corner.</font></p></td> 158 - <td align="center" valign="top" ><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/rios04.jpg" border="2" hspace="10" width="321" height="240"><br> 159 - <font size="2">Figure 11.</font></font></td> 160 - </tr> 161 - <tr> 162 - <td valign="top" align="left" colspan="2"><font face="Verdana" size="2"> </font></td> 163 - </tr> 164 - <tr> 165 - <td valign="top" align="left"><font size="2" face="Verdana, Helvetica, sans-serif"><b>Step 12.</b><br> 166 - Now you can press the "Play" button in the upper left corner, and test your project.</font> 167 - <p><font size="2" face="Verdana, Helvetica, sans-serif">When the gripper starts to close, put an object inside, or press against the sensor. 168 - Once the threshold has been reached, the gripper will stop closing, and will start to open.</font></p> 169 - <p><font size="2" face="Verdana, Helvetica, sans-serif">If you need to adjust the threshold, click the "Exit" button, and change the 170 - value in the Inputs section of Step 2.</font></p> 171 - <p><font size="2" face="Verdana, Helvetica, sans-serif">For a more complex example, you can load up the project "Demo 09 Grip Close".</font></p></td> 172 - <td align="center" valign="top" ><font face="Verdana, Helvetica, sans-serif"><img src="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/servo-erector-set-robots-kits/ses-v1-robots/ses-v1-arms/arm-gripper-fsr/WebHome/rios05.jpg" border="2" hspace="10" width="321" height="240"><br> 173 - <font size="2">Figure 12.</font></font></td> 174 - </tr> 175 -</tbody></table> 176 -</body> 2 + 177 177 {{/html}}
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