{"id":136,"date":"2008-02-06T05:11:06","date_gmt":"2008-02-06T09:11:06","guid":{"rendered":"http:\/\/www.etotheipiplusone.net\/?p=136"},"modified":"2008-02-06T05:17:39","modified_gmt":"2008-02-06T09:17:39","slug":"o-god-python","status":"publish","type":"post","link":"https:\/\/www.etotheipiplusone.net\/?p=136","title":{"rendered":"O GOD PYTHON"},"content":{"rendered":"

Yeah. The language used to teach 6.01. I keep putting semicolons on the end of everything and bracketing random things! <\/strong><\/p>\n

It’s a totally different thought paradigm from the likes of JavaC+++Script.<\/p>\n

So I found out that the aluminum plate I cut the arm pieces from was actually .515″<\/em>. Odd, but whatever. The arm links ended up being ~1\/16″ wider than they were supposed to be, which messed with fitting things. So the solution was to plane down the links in the milling machine the next time I was in the Media Lab.<\/p>\n

That sounded so simple. Anyways, here’s a picture of things that are supposed to be .500 +\/- .003 but are not.<\/p>\n

<\/a><\/p>\n

Yeah. That’s pretty damned inaccurate, but at least the mill is consistent in the thousandths digit. Fortunately, the thickness of the arm itself is a rather noncritical dimension.
\nI hate ill-maintained flakey public tools. I don’t even understand how things got fucked up this badly. Seriously, .465 on a part that’s supposed to be a half inch? Dialing in .015 seems to mean .005 to .025.<\/p>\n

Something was tilted the wrong way also. That .465 part was .510 at the other end (about 12 inches).<\/p>\n

If you had to pick between these two milling machines:<\/p>\n

a) Huge old-skool Bridgeport, super smooth with DRO, but 1 good vise, no clamping kits, no parallels, no drill chuck, no edge finders, nor apparently the ability to change speeds, and about 10 minutes walk away<\/p>\n

or<\/p>\n

b) Shaky Taiwanese import mill-drill. Great tool selection, but shitty vise, backlash measured in miles, a Z-axis that goes Tokyo Drift at will (as pictured) , a clamped round-column that likes to move side-to-side, cheap vise, half a clamping kit, but across the street?<\/p>\n

…which would you choose?<\/p>\n

Man, if I could jack the ML’s milling tool bucket and have nobody notice, I’d totally take the Bridgeport. In fact, it’s so smooth and huge that I can’t use Ghettoedging because the massive amount of cast iron dampens the tool noises so much.<\/p>\n

Oh well. Now that my giant slabs of aluminum have arrived, I’ll recut the arm pieces. 2024 precision ground is better than .515″ 6061.<\/p>\n

.515… that’s such a weird thickness, isn’t it?<\/p>\n","protected":false},"excerpt":{"rendered":"

Yeah. The language used to teach 6.01. I keep putting semicolons on the end of everything and bracketing random things! It’s a totally different thought paradigm from the likes of JavaC+++Script. So I found out that the aluminum plate I cut the arm pieces from was actually .515″. Odd, but whatever. The arm links ended […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,8,30],"tags":[33,32,34,31],"class_list":["post-136","post","type-post","status-publish","format-standard","hentry","category-bots","category-mit-boston","category-test-bot-45-sp1","tag-battlebot","tag-fighting-robot","tag-motorama","tag-test-bot-45"],"_links":{"self":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=136"}],"version-history":[{"count":0,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=\/wp\/v2\/posts\/136\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.etotheipiplusone.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}