tag:blogger.com,1999:blog-4339813531032979196.post5072537185653833860..comments2024-02-28T07:32:59.864+00:00Comments on HydraRaptor: Extruder postmortemnopheadhttp://www.blogger.com/profile/12801535866788103677noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-4339813531032979196.post-25677394698063946662010-05-16T05:15:30.260+01:002010-05-16T05:15:30.260+01:00"This is a common problem and stems from the ..."This is a common problem and stems from the fact that PTFE has the lowest coefficient of friction of any known solid material."<br /><br />Diamond-like carbon comes it at number one with the lowest coefficient of friction, PTFE comes in at a close second.<br /><br />http://en.wikipedia.org/wiki/Diamond-like_carbon#Properties<br /><br />At least thats the case with polished steels. This is not really important (or practical) here but an interesting side note all the same.<br /><br />Also interesting is that due to PTFE's resistance to van der Waals forces it is the only known surface to which a gecko cannot stick.Richardnoreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-70245214724277121182008-02-22T14:10:00.000+00:002008-02-22T14:10:00.000+00:00Could be SB but I think it's WP, outside chance EW...Could be SB but I think it's WP, outside chance EW. Trouble is I seem to know quite a few pedants and even more people that are better at English than me.nopheadhttps://www.blogger.com/profile/12801535866788103677noreply@blogger.comtag:blogger.com,1999:blog-4339813531032979196.post-78982213134050211532008-02-13T21:53:00.000+00:002008-02-13T21:53:00.000+00:00The past tense of shrink is shrank.The past tense of shrink is shrank.Anonymousnoreply@blogger.com