![\"\"](\"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/04\/IMG_5287.jpg?w=670\")
<\/p>\nI’m not done yet, but pretty happy with the progress on “eye mech” \u2013 the mechanical part of the eye movement control.<\/p>\n
A local radio control hobby shop had a transmitter on sale\u2026 the same type that R\/C airplane and higher-end copter folks use. That, plus a receiver, a battery, and four servos, and I’m on my way to some real movement!<\/p>\n
Here’s a picture of the “eye mech plate” I designed and 3D printed, along with two eyes. \u00a08 gauge threaded cable holds the eyes, currently, but I’m working on a smaller cable with a smooth ball on the end to reduce friction and provide stability. \u00a0Servos are strategically mounted \u2013 though they’re not yet hooked up to any control rods. One servo will control left\/right eye movement, and the other will control up\/down. I’ve got room for a third servo to control blinking movement for eyelids \u2013 not yet designed.<\/p>\n
<\/p>\n
You’ll notice the two-level box near and just between the eyes. I’m planning to drill holes through them for the control linkages, to provide “forward\/backward only” movement restriction.<\/p>\n
There’s plenty more work to do, but even at this early stage, it was exciting to fire up the transmitter and watch the servos move!<\/p>\n","protected":false},"excerpt":{"rendered":"
I’m not done yet, but pretty happy with the progress on “eye mech” \u2013 the mechanical part of the eye movement control.<\/p>\n","protected":false},"author":1,"featured_media":241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false},"categories":[38],"tags":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/04\/IMG_5287.jpg?fit=1536%2C2048&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p76pQa-3U","jetpack-related-posts":[{"id":238,"url":"https:\/\/3d.rayharwood.com\/?p=238","url_meta":{"origin":242,"position":0},"title":"First dragon parts","date":"April 11, 2015","format":false,"excerpt":"Its been a few months since I did any 3D printing, but now that I'm exploring the inner workings of the dragon kingdom, I'm back into it. This morning I designed some eyes, a pulley (which I ultimately decided I wouldn't use, but went ahead to try the part concept\u2026","rel":"","context":"In "Dragon"","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/04\/IMG_5281.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":140,"url":"https:\/\/3d.rayharwood.com\/?p=140","url_meta":{"origin":242,"position":1},"title":"Coins-Worth Update 7\/18","date":"July 20, 2014","format":false,"excerpt":"Coins-Worth prototype Version 2 is coming along nicely. \"What's the hold-up?\", you might ask. Since I'm new to manufacturing and 3D printing, I'm having to do a lot of trial-and-error in creating the parts design. This isn't a bad thing, since it drives me down a number of learning curves\u2026","rel":"","context":"In "Coins-Worth"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/20140720-120226-43346368.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":245,"url":"https:\/\/3d.rayharwood.com\/?p=245","url_meta":{"origin":242,"position":2},"title":"Tail mechanics!","date":"April 15, 2015","format":false,"excerpt":"Here's a shot of my first \"4-way tentacle control\". I can't say enough about the DVDs from the Stan Winston School of Character Arts! I've watched most of 3 DVDs, and learned so much, including how to machine parts for the tentacle control, and how to 3D print parts for\u2026","rel":"","context":"In "3D Objects"","img":{"alt_text":"","src":"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/04\/IMG_1971.jpg?fit=1200%2C896&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":199,"url":"https:\/\/3d.rayharwood.com\/?p=199","url_meta":{"origin":242,"position":3},"title":"Coins-Worth assembly","date":"October 10, 2014","format":false,"excerpt":"Just before moving around Labor Day, I had assembled a Coins-Worth unit with as much as I had.\u00a0 This picture shows the side view, with the power and USB connectors on the lower left, the Logitech web camera on the upper right, and the feeder tube on the upper left.\u2026","rel":"","context":"In "Coins-Worth"","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/10\/20140725_180556563_iOS.jpg?fit=900%2C1200&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":130,"url":"https:\/\/3d.rayharwood.com\/?p=130","url_meta":{"origin":242,"position":4},"title":"I built a bridge!","date":"July 19, 2014","format":false,"excerpt":"Usually when you design a 3D-printed part, you want it to \"build from the ground up\". After all, having the extruder \"hang filament in mid-air\" seems like a pretty difficult request. But today, I did it. For one of the Coins-Worth pieces, I needed to add a structural piece so\u2026","rel":"","context":"In "3D Objects"","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2014\/07\/FreeCAD-Bridge.jpg?fit=922%2C496&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":227,"url":"https:\/\/3d.rayharwood.com\/?p=227","url_meta":{"origin":242,"position":5},"title":"Animatronic Dragon","date":"April 7, 2015","format":"gallery","excerpt":"So my family has the Renaissance Fair bug. Big time. \u00a0Me, too. Of course, I can't just be satisfied with a wizard outfit. Now I've got it in my head that I want to develop an animatronic dragon to sit on my shoulder and \"wow\" the crowd. I've bought some\u2026","rel":"","context":"In "Dragon"","img":{"alt_text":"","src":"https:\/\/i1.wp.com\/3d.rayharwood.com\/wp-content\/uploads\/2015\/04\/IMG_1969.jpg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/242"}],"collection":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=242"}],"version-history":[{"count":3,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/242\/revisions"}],"predecessor-version":[{"id":281,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/posts\/242\/revisions\/281"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=\/wp\/v2\/media\/241"}],"wp:attachment":[{"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3d.rayharwood.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}