This is a mount for the Makerbot NEMA 17 Stepper Motor found here: http://store.makerbot.com/featured-products/nema-17-stepper-motor.htmlThis is a 3Inch piece that is fully compatible with the Contraptor Project. www.contraptor.orgYou Can see more photos at my flickr: http:[email protected]/* <![CDATA[ */!function(t,e,r,n,c,a,p){try{t=document.currentScript||function(){for(t=document.getElementsByTagName('script'),e=t.length;e--;)if(t[e].getAttribute('data-cfhash'))return t[e]}();if(t&&(c=t.previousSibling)){p=t.parentNode;if(a=c.getAttribute('data-cfemail')){for(e='',r='0x'+a.substr(0,2)|0,n=2;a.length-n;n+=2)e+='%'+('0'+('0x'+a.substr(n,2)^r).toString(16)).slice(-2);p.replaceChild(document.createTextNode(decodeURIComponent(e)),c)}p.removeChild(t)}}catch(u){}}()/* ]]> *//sets/72157622475596037/ or at my blog. http://blog.synthetos.comFind a friend with a laser cutter and lazor some plexi glass (1/4) for best results. You can also use a hole saw/drill or drill press and a skill saw to make this mount without a laser cutter. Or stop by my soon to be new laser cutting service at synthetos.com. </>shameless plugril3y