Try this again; exclude more files

.gitignore

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+.DS_Store
+*.cbddlp
+*.gcode
+*.idea
+*.zip
+*.chitubox

downloads/Mantis_Gripper/README.txt

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+                   .:                     :,                                          
+,:::::::: ::`      :::                   :::                                          
+,:::::::: ::`      :::                   :::                                          
+.,,:::,,, ::`.:,   ... .. .:,     .:. ..`... ..`   ..   .:,    .. ::  .::,     .:,`   
+   ,::    :::::::  ::, :::::::  `:::::::.,:: :::  ::: .::::::  ::::: ::::::  .::::::  
+   ,::    :::::::: ::, :::::::: ::::::::.,:: :::  ::: :::,:::, ::::: ::::::, :::::::: 
+   ,::    :::  ::: ::, :::  :::`::.  :::.,::  ::,`::`:::   ::: :::  `::,`   :::   ::: 
+   ,::    ::.  ::: ::, ::`  :::.::    ::.,::  :::::: ::::::::: ::`   :::::: ::::::::: 
+   ,::    ::.  ::: ::, ::`  :::.::    ::.,::  .::::: ::::::::: ::`    ::::::::::::::: 
+   ,::    ::.  ::: ::, ::`  ::: ::: `:::.,::   ::::  :::`  ,,, ::`  .::  :::.::.  ,,, 
+   ,::    ::.  ::: ::, ::`  ::: ::::::::.,::   ::::   :::::::` ::`   ::::::: :::::::. 
+   ,::    ::.  ::: ::, ::`  :::  :::::::`,::    ::.    :::::`  ::`   ::::::   :::::.  
+                                ::,  ,::                               ``             
+                                ::::::::                                              
+                                 ::::::                                               
+                                  `,,`
+
+
+http://www.thingiverse.com/thing:1480408
+Mantis Gripper by 4ndreas is licensed under the Creative Commons - Attribution license.
+http://creativecommons.org/licenses/by/3.0/
+
+# Summary
+
+Robot Gripper:
+http://chaozlabs.blogspot.com/2016/04/mantis-robot-arm-part-1-gripper.html
+
+Watch the assembly instruction here:
+https://youtu.be/Sz4pLQS5GgY
+
+You can find the cad files on github:
+https://github.com/4ndreas/Mantis-Robot-Arm

downloads/Mantis_Gripper/attribution_card.html

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+<!-- from http://www.thingiverse.com/thing:8174 by whosawhatsis, used with permission -->
+<style type="text/css">
+#tagback {padding: 50px;background: white;}
+.tag {position: relative;border: 1px solid #eeeeee;width: 450px;height: 150px;margin: 0px;padding: 10px 10px 10px 120px;}
+.tag .qrcode-sidebar {float: right;margin: 0px;padding: 0px;}
+.tag a {color: black;text-decoration: none;}
+.tag h1 {font: bold 18px Arial,sans-serif;margin: 0px;padding: 0px;}
+.tag h2 {font: 14px Arial,sans-serif;margin: 0px;padding: 0px;}
+.tag h3 {font: 12px Courier,monospace;margin: 0px;padding: 0px;}
+.tag h4 {font: 9px Arial,sans-serif;position: absolute;bottom: 0px;left: 0px;margin: 0px 150px 0px 0px;padding: 0px;}
+.tag h4 div {float: left;margin: 0px 5px 15px 125px;height: 40px;}
+.tag h4 div img {height: 40px;}
+</style>
+
+<div id="tagback"><div class="tag">
+        <div class="qrcode-sidebar">
+            <img src="http://chart.apis.google.com/chart?chs=150x150&cht=qr&chl=thingiverse.com/thing:1480408&choe=UTF-8&chld=Q|1">
+        </div>
+        <h1>Mantis Gripper by 4ndreas</h1>
+        <h2>Published on April 13, 2016</h2>
+        <h3>www.thingiverse.com/thing:1480408</h3>
+        <h4>
+                                                                                                            <div class="row-fluid cc-licenses">
+                                            <span class="span6">
+                            <img src="http://www.thingiverse.com/img/cc/chooser_cc.png" />
+                        </span>
+                                            <span class="span6">
+                            <img src="http://www.thingiverse.com/img/cc/chooser_by.png" />
+                        </span>
+                                    </div>
+                    Creative Commons - Attribution<br /></h4>
+</div></div>
+
+<script>
+window.onload = function(){
+    document.getElementById('tagback').appendChild(document.getElementById('tagback').firstChild.cloneNode(true));
+};
+</script>