{"id":11,"date":"2018-08-09T14:15:15","date_gmt":"2018-08-09T14:15:15","guid":{"rendered":"http:\/\/commons.princeton.edu\/58-tiger-cub\/?p=11"},"modified":"2018-08-15T13:38:45","modified_gmt":"2018-08-15T13:38:45","slug":"february-28-2017-tuesday-week-4","status":"publish","type":"post","link":"https:\/\/commons.princeton.edu\/58-tiger-cub\/2018\/08\/09\/february-28-2017-tuesday-week-4\/","title":{"rendered":"February 28, 2017 (Tuesday, Week 4)"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\">Agenda:\u00a0<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">Updates on shop progress<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Dynamometer Demo<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Readings<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Bottom End<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">cleaned engine case<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">used arbor press to remove sprocket bearing, took seal out (needs replacing)<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Clutch<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">need to go to bunker to find some new parts (oil reservoir cap)<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Electrical<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">finding lights online<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">polished parts<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Fasteners<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">remeasured engine cover<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">completed Creo tutorial<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Fork<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">measured forks<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">removed wiring from handlebars, removed grips from handlebars<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Frame<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">worked on taking apart rear struts<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Top End<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">sandblasted and scrubbed\u00a0<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">next step: cut gaskets<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Wheels<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">opened and cleaned rear hub<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">replaced rear wheel bearings<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">*important to make sure all parts are clean before they go to the powder coater<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Dynamometer Demo<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">force- units: pounds, Newtons<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">torque- rotational force (foot-pounds, Newton-meters), r*f<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">power- energy per time (Watt, foot-pounds-per-second), or force*velocity<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">work- force*distance<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">one horsepower = 33,000 foot-pounds\/minute (about 750 W)<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">dynamometer- what is the torque? what is the power?<\/span><\/li>\n<\/ul>\n<p class=\"p1\"><span class=\"s1\">DeProny brake, or brake dynamometer<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">measures torque vs rpm (angular speed)<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">find angular speed at which your motor generates the most power (which is why we have multiple gears)<\/span><\/li>\n<\/ul>\n<p class=\"p1\"><span class=\"s1\">Takeaways<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">Torque is turning force<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Work is force*distance<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Power is force*velocity<\/span><\/li>\n<\/ul>\n<p class=\"p2\">\n<p class=\"p1\"><span class=\"s1\">Readings<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">Zen, Chapters 7&amp;8<\/span><\/p>\n<ul>\n<li class=\"li1\"><span class=\"s1\">Motorcycle references<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">Jets\u2014 oversized vs standard (use oversized\/ pilot jet when idling)<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">size of hole determines air flow vs gas flow<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">At higher altitudes, oxygen is lower\u2014 needs less fuel<\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li1\"><span class=\"s1\">Spark plug\u2014 when \u201cfouled\u201d, covered with carbon\u2014 too much fuel<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Chain\u2014 is running \u201chot and dry\u201d\u2014 evaporating lubricant immediately<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Cam and Tappets\u2014 made of hardened steel, because they take the brunt of the force<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">Need to adjust tappet\/ cam shaft clearance when cold (when parts are warm, it stretches)\u2014 valves need to close fully<\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li1\"><span class=\"s1\">Content<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">revisiting classical\/ romantic\u00a0<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">understanding thoroughly loses some beauty (Mark Twain\u2014lost the beauty of the river), but there is also beauty in learning how things work<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">reconciling two viewpoints<\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li1\"><span class=\"s1\">\u201cghost of rationality\u201d<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">rationality is not always beneficial<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">ethics\u2014 can rationality be applied? (utilitarian)<\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li1\"><span class=\"s1\">effects vs causes<\/span><\/li>\n<li class=\"li1\"><span class=\"s1\">\u201cHe was systematic, but to say he thought and acted like a machine would be to misunderstand the nature of his thought. It was not like pistons and wheels and gears all moving at once, massive and coordinated.\u201d<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">whole vs individual<\/span><\/li>\n<\/ul>\n<\/li>\n<li class=\"li1\"><span class=\"s1\">Steel<\/span>\n<ul>\n<li class=\"li1\"><span class=\"s1\">\u201cSteel can be any shape you want if you are skilled enough, and any shape but the one you want if you are not.\u201d<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Agenda:\u00a0 Updates on shop progress Dynamometer Demo Readings Bottom End cleaned engine case used arbor press to remove sprocket bearing, took seal out (needs replacing) Clutch need to go to bunker to find some new parts (oil reservoir cap) Electrical finding lights online polished parts Fasteners remeasured engine cover completed Creo tutorial Fork measured forks &hellip; <a href=\"https:\/\/commons.princeton.edu\/58-tiger-cub\/2018\/08\/09\/february-28-2017-tuesday-week-4\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;February 28, 2017 (Tuesday, Week 4)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/posts\/11","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/comments?post=11"}],"version-history":[{"count":1,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/posts\/11\/revisions"}],"predecessor-version":[{"id":25,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/posts\/11\/revisions\/25"}],"wp:attachment":[{"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/media?parent=11"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/categories?post=11"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/commons.princeton.edu\/58-tiger-cub\/wp-json\/wp\/v2\/tags?post=11"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}