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<title>RoboSavvy Forum</title>
<subtitle>Robosavvy Forum: The largest online community of Humanoid Robot Builders</subtitle>
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<updated>2005-03-08T23:42:28+01:00</updated>

<author><name><![CDATA[RoboSavvy Forum]]></name></author>
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<entry>
<author><name><![CDATA[Meltdown]]></name></author>
<updated>2005-03-08T23:42:28+01:00</updated>
<published>2005-03-08T23:42:28+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=23&amp;p=83#p83</id>
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<title type="html"><![CDATA[Slippery soles. How to solve it ?]]></title>

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Once i understood the problems i now can do all the movement gaits including walking forward and backwards and sideways in 3 differend speeds in a nearly perfect strait line.<br />My robot has 21 servos now so i had to redo all the movements i made earlier. 8O<br />I made aluminium hones with ball bearings on my mill/lathe to stabilize the robot more. This was badly needed because the 21 servos changes everything like balance stability etc.<br />There are photos somewhere on this site of that. <br />The only one i can't do is the cardwheel. Gait nr7 i believe.<br />This is because it needs the expensive 20kg servos.<br />The standard servos just don't have the torque.<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=4">Meltdown</a> — Tue Mar 08, 2005 11:42 pm</p><hr />
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<entry>
<author><name><![CDATA[inaki]]></name></author>
<updated>2005-03-08T23:24:57+01:00</updated>
<published>2005-03-08T23:24:57+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=23&amp;p=82#p82</id>
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<title type="html"><![CDATA[Slippery soles. How to solve it ?]]></title>

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Thanks. What you say makes sense. The bad of a biped robot is that the most minimum detail ruins all the work taken from a different robot.<br /><br />Actually using a gyro is the only way I can think of to unify different robots. <br /><br />Just out of curiosity, have you been able to make your KHR walk? Not to mention that pirouettes that we can see on videos !<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=8">inaki</a> — Tue Mar 08, 2005 11:24 pm</p><hr />
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<entry>
<author><name><![CDATA[Meltdown]]></name></author>
<updated>2005-03-08T23:28:51+01:00</updated>
<published>2005-03-08T23:01:44+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=23&amp;p=81#p81</id>
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<title type="html"><![CDATA[Slippery soles. How to solve it ?]]></title>

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Your suffering from beginners problems.<br />Believe me i did too!<br />I was the first in the western world to have a KHR-1 many months ago so i have build up some experience.<br /><br />No need to rubber the soles. In fact it's a bad idea because it will only<br />cause the robot to trip over it's own feet. The soles need to slide.<br /><br />The reason the gaits don't work is that your robot isn't adjusted the <br />same way as the robot they used to make the gaits.<br />The secret is that you have to be really anal in adjusting the home<br />position of the robot besides trimming the servos right (see my other reply). <br />This is why you don't see many gaits on the net from other KHR-1 users.<br /> Every KHR-1 is adjusted differently so it's no use.<br />I used the gaits as a learning tool. To get me started.<br />It's better to make your own gaits tuned to your particular robot.<br /><br />Very important is the speed and timing of the movements.<br />Best is to begin in slo-mo. Speed setting 5 and 6 are good.<br />To fast and the movements won't complete themselves fully so the<br />next position movement comes to fast/soon.<br />This will cause the drunk sliding effects and losing the balance due to<br />the robots own inertia.<br />Making movements is an art and a big part of the hobby.<br />Those japs at Robo one are very good at that!<br />It also requires much patience. <br />They have had a few years more experience with that so we are not at same level yet.<br /><br />Believe me i made the same mistakes so don't worry.<br />Some of it will be easier when using gyros i hope.<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=4">Meltdown</a> — Tue Mar 08, 2005 11:01 pm</p><hr />
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<entry>
<author><name><![CDATA[inaki]]></name></author>
<updated>2005-03-08T22:19:56+01:00</updated>
<published>2005-03-08T22:19:56+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=23&amp;p=80#p80</id>
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<title type="html"><![CDATA[Slippery soles. How to solve it ?]]></title>

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Well I have entered the gait programming and loading stage. All seems to work except that the KHR soles slip in any surface, from wood to short hair carpets. <br /><br />Actually my KHR acts like drunk. It cannot perform well any of the intended 'motions'.<br /><br />I am thinking about some sort of rubber to avoid slipping.   <br />Anyone has solved this problem ?<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=8">inaki</a> — Tue Mar 08, 2005 10:19 pm</p><hr />
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