On 1/21/2016 10:32 PM, Bruce Layne wrote: > Once I convinced my friend that the noise wasn't the result of some > problem with the stepper motors and seemed to be greatly amplified at > resonant frequencies, we quickly brainstormed a couple of fixes > involving various extrusion fills and RTV silicone was at the top of our > list. Great minds think alike, I guess. :-) > > My recent experiments with RTV silicone lead me to guess that the > silicone would cure a couple of inches on the ends where it was exposed > to the air, and the inner fill either wouldn't cure at all or would cure > over the course of a year or so. In this application, it probably > wouldn't matter. The dampening would be provided by cured or uncured > silicone rubber. > > Strange Coincidence - I was taking another look at the RTV silicone on > the McMaster-Carr website (for my upcoming silicone rubber 3D printing > project) when your email arrived in my Inbox.
Use the 2-part RTV silicone. Preferably platinum cure, which doesn't shrink and has an indefinite life after it's cured. Tin cure is a little lower priced but it shrinks a bit and over time it can deteriorate. The silicone caulk is called condensation cure. If it smells like vinegar it uses evaporation of acetic acid. DO NOT USE on any application involving electronics. (Or live animals, especially fish.) The aquarium safe stuff uses an alcohol and once its fully cured it doesn't leach anything so it won't poison fish or corrode electronics. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
