robothut Posted May 7, 2016 Share Posted May 7, 2016 Well, the last week I spent on a diversion. Wanting to improve my 3d CAD skills I have designed a new 3d printed robot. I use Design Spark Mechanical free 3d CAD.Well, make that Robot's, since it started as a non programed Old School walking robot in to a walking , striding bending and gear spinning programed robot.The striding action makes me think of John Cleese in his skit Ministry of Silly Walks. The bending is like that of DUX Astroman / Mr Mercury.The chest gear display is based on the Mechanic gear robot. and the Head and arms are like Fly Eye robots of the past. The walking action is the standard old school slide and Glide "ratchet wheels on the bottom of the feet, but you can control the walking action stride and speed. So it could be small fast or slow steps or large srtiding steps Over 1 year a go I did a post "here some place" on using the cheep china servo testers as a way to control servos with out haveing to learn any programing. The servo testers and dirt cheep and have modes of operation. They power up in manual mode meaning you turn the knob and the servo tracks your knob turning movment, mode two is the servos will center themselves "good for a stand at attention" and mode 3 the servo tester will cycle the servos back and forth over and over. So it seemed to me that would make for a great walking action control unit. All I would have to do is use 4 servos and flip them Left and Right. Here is a you tube link for the first design of the walking section. Link to comment Share on other sites More sharing options...
robothut Posted May 7, 2016 Author Share Posted May 7, 2016 Here are the new 3d printed parts. I made the body a single part that prints vertically and looks great. All the parts "except the chest gear display" are printed in the glow in the dark blue plastic. Link to comment Share on other sites More sharing options...
robothut Posted May 7, 2016 Author Share Posted May 7, 2016 The feet have ratchet wheels , the teeth must face the right way and there is a groove for a silicon rubber "glow" O ring tire. front and back ratchet arms are different and right and left foot parts are reveresed, I was able to use Mesh mixer to Mirror these parts so I did not have to design them 4 times. Same with the feet. Link to comment Share on other sites More sharing options...
robothut Posted May 7, 2016 Author Share Posted May 7, 2016 The servos mount to a leg part, then to the feet and the crotch unit that also has the battery box part. Link to comment Share on other sites More sharing options...
roboz Posted May 7, 2016 Share Posted May 7, 2016 That's really neat John , the walking action is sweet ! Link to comment Share on other sites More sharing options...
Lunik Posted May 7, 2016 Share Posted May 7, 2016 Awesome again, and a brilliant idea to use the servo tester as a simple operator's control! Link to comment Share on other sites More sharing options...
MetalRobotHead Posted May 7, 2016 Share Posted May 7, 2016 Interesting project, will be good to see how it evolves. Link to comment Share on other sites More sharing options...
kennetzel Posted May 7, 2016 Share Posted May 7, 2016 Looks like another great one from John. Looking forward to seeing what it becomes. Link to comment Share on other sites More sharing options...
Brian.. Posted May 7, 2016 Share Posted May 7, 2016 That makes a very effective chassis for a whole generation of robots. That louche walk reminds me of Crumb's "Keep On Trucking" Link to comment Share on other sites More sharing options...
robothut Posted May 7, 2016 Author Share Posted May 7, 2016 OK some one photo shop a ZZ top beard on to this body/face. The cool thing about the new body is that it prints Vertical and in one peice. Also no supports or raft, even with the large battery opening and hatch on the top back the printer can do the part just as you see it. No clean up. The arms turned out very nice as well. The programmed version of this robot that will bend and walk will be printed in Black plastic for contrast. Link to comment Share on other sites More sharing options...
Ranger Posted May 7, 2016 Share Posted May 7, 2016 That's looking great John, nice work. Put me down for one please! Link to comment Share on other sites More sharing options...
robothut Posted May 7, 2016 Author Share Posted May 7, 2016 I have added the lower walking part to ThingAVerse so any one can build one if they like. http://www.thingiverse.com/thing:1547525 I will keep the upper body and spinning gear chest display for our use. Link to comment Share on other sites More sharing options...
WJN Posted May 7, 2016 Share Posted May 7, 2016 Amazing John, as usual. But a question if I may: When do you sleep? Or do you use your time machine to create 48 hour days? I'm baffled as to how you have the time for all this. But whatever your method, keep it up, please. Link to comment Share on other sites More sharing options...
robot polishing his rocket Posted May 8, 2016 Share Posted May 8, 2016 love it! put me down for one too. Link to comment Share on other sites More sharing options...
kennetzel Posted May 8, 2016 Share Posted May 8, 2016 Oh heck, put me down for one too. Link to comment Share on other sites More sharing options...
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