{"id":1264,"date":"2011-05-10T12:49:16","date_gmt":"2011-05-10T04:49:16","guid":{"rendered":"http:\/\/blog.lolyco.com\/sean\/?p=1264"},"modified":"2013-08-27T21:38:59","modified_gmt":"2013-08-27T13:38:59","slug":"lego-mindstorms-rcx-cable-rot-decay","status":"publish","type":"post","link":"https:\/\/blog.lolyco.com\/sean\/2011\/05\/10\/lego-mindstorms-rcx-cable-rot-decay\/","title":{"rendered":"LEGO Mindstorms RCX cable rot \/ decay"},"content":{"rendered":"<p>Some of the LEGO I have in the house must be 30 years old. It&#8217;s as good as the day it was first unwrapped. I have to admit to being disappointed when one of my two RCXes stopped responding to the IR tower. I was pleased the other one was still working just fine and was looking forward to testing my old research software (a program that uses a &#8216;genetic&#8217; algorithm to create a novel kind of controller which I then simulate on the RCX). When I looked through the bag of cables I discovered a catastrophe &#8211; the cable sheaths had rotted away:<\/p>\n<div id=\"attachment_1265\" style=\"width: 310px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/blog.lolyco.com\/sean\/wp-content\/uploads\/2011\/05\/legorcxcablerot.jpeg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1265\" class=\"size-medium wp-image-1265\" title=\"LEGO RCX cable rot \/ decay \/ damage\" alt=\"LEGO RCX cable rot \/ decay\" src=\"http:\/\/blog.lolyco.com\/sean\/wp-content\/uploads\/2011\/05\/legorcxcablerot-300x139.jpg\" width=\"300\" height=\"139\" srcset=\"https:\/\/blog.lolyco.com\/sean\/wp-content\/uploads\/2011\/05\/legorcxcablerot-300x139.jpg 300w, https:\/\/blog.lolyco.com\/sean\/wp-content\/uploads\/2011\/05\/legorcxcablerot-1024x476.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-1265\" class=\"wp-caption-text\">LEGO RCX cable rot \/ decay<\/p><\/div>\n<p>It looks to me like some kind of mildew and varies in severity from cable to cable, but I don&#8217;t have a single unaffected piece. The best ones (click on the photo for a larger image, see the top cable) have just a little cracking around the entry into the terminal brick. The cables sheaths on these ones are unusually soft and the black sheath surface can be easily scraped off with a thumbnail, though not down to bare wire. Most of the others have far worse decay where the sheath has disintegrated into flakes or lumps which has fallen away leaving bare wire.<\/p>\n<p>I rather stupidly opened the worst-affected piece &#8211; a light sensor &#8211; to see how difficult it would be to replace the entire cable, but broke the light sensor, probably while trying to de-solder the glued-in end of the wires from the small PCB inside. I think my best bet for now is to clean the bare cables, cut the cables quite close to the terminal bricks and insert new wires with boots over the joins. I can&#8217;t buy any replacements at the moment as I&#8217;m due to move from Malaysia to the UK in the next few weeks. I may well check eBaY for RCX cables when I&#8217;m unpacked in the UK.<\/p>\n<p>I&#8217;m a bit rattled by the severity and extent of the failure of these cables &#8211; LEGO should last forever, right?<\/p>\n<p><span style=\"color: #ff0000;\"><strong>Update<\/strong><\/span>: Not sure why I forgot to update this article, but I filled in a &#8216;contact us&#8217; form at LEGO&#8217;s website soon after writing this article and LEGO sent me some replacement cables within days of the article&#8217;s date. Thanks to Juan Carlos for reminding me with his comment, I can finish the article with thanks also to LEGO!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some of the LEGO I have in the house must be 30 years old. It&#8217;s as good as the day it was first unwrapped. I have to admit to being disappointed when one of my two RCXes stopped responding to the IR tower. I was pleased the other one was still working just fine and [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,14,40],"tags":[79,75,76,77],"class_list":["post-1264","post","type-post","status-publish","format-standard","hentry","category-breaktime","category-broken","category-life","tag-cable","tag-lego","tag-mindstorms","tag-rcx"],"_links":{"self":[{"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/posts\/1264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/comments?post=1264"}],"version-history":[{"count":6,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/posts\/1264\/revisions"}],"predecessor-version":[{"id":1571,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/posts\/1264\/revisions\/1571"}],"wp:attachment":[{"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/media?parent=1264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/categories?post=1264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.lolyco.com\/sean\/wp-json\/wp\/v2\/tags?post=1264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}