On Tuesday 28 July 2020 02:06:38 theman whosoldtheworld wrote: > Vaseline ..... cheap ....
Got lots of it. > grease FDA silicon based is better .... Brand name? > but > you talk about PLA which is the water soluble part .... > so when you increase the speed make sure that there is no water inside > or humidity .... I didn't know that, these are having the edges sanded to remove the last of the brim, and the dust washed off under a faucet. > the temperature and the water increase the disintegration of this > plastic. PET plastic based is better choice for these purpose, more > strong and durable. > > Some printing PETs are mixed with plastics which make it more > flexible. In USA you have a good choice of filaments and for good > prices too. I have enough PLA to finish this, but will have to survey the markets and see whats available and prices. > regards > Thank you. > bkt > > > Il giorno gio 23 lug 2020 alle ore 22:45 Gene Heskett > <[email protected]> > > ha scritto: > > On Thursday 23 July 2020 15:26:06 Chris Albertson wrote: > > > I would very much like to hear what the experts at Mobile say, if > > > you can get an answer from them. > > > > > > But what I do is save fail and redesigned printed parts so I can > > > do experiments on them like testing of Epoxy or CA glue is best or > > > just put them in a vice and bend 'till they break. I've never > > > done grease and oil tests but you likely have enough reject parts > > > not to at least test of the oil dissolves PLA or not > > > > > > They say PLA is made of corn oil and is biodegradable. But I've > > > yet to see any biodegradation even with part soaked in water. > > > > > > But I do see very fast wear with PLA parts. If I put a steel > > > shaft on a PLA bearing the bearing hole gets worn out. What I > > > found is I can but bronze bushings and pres fit them in the PLA > > > hole. Oilite bronze on steel works well untill in get hot and > > > melts the PLA. Another solution is skateboard bearings. These > > > are cheap > > > > > > The best harmonic redcer designs I've need use bearing for the > > > pins so the PLA is not needing to rub on a pin. > > > > > > I've foubd PLA does not like friction so pressed in sleave or > > > sealed bearinbg units are best. and these are really cheap on eBay > > > and can be re-used on furute projects many times. But plain > > > bearing made of PLA just don't last. So noted, thanks again. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
