Many years ago I had pretty good luck with epoxy catalyzed with trimellitic anhydride The epoxy was a bright yellow and was used to seal cartridge heaters in a reactor operating at a couple of atm with a charge of water and powdered zinc. But then that was 60+ years ago, YMMV. IOW Good luck.
Dave Note for the curious: the idea was to recover the hydrogen from the water and then convert it to methane and count the amt of tritium in the methane. Tritium has a pretty short half-life so much easier to count and get good counting statistics than C14. Don’t think we were ever even close to successful. On Jan 31, 2026, at 3:48 PM, gene heskett <[email protected]> wrote: > > On 1/31/26 17:58, Stuart Stevenson wrote: >> LinuxCNC guys, >> I don't know how I included LinuxCNC guys in this email. It must have been >> me trying to reply to an email using my Iphone. I literally hate it. It >> updates as it wishes. The updates modify anything Apple wants to. I have to >> be constantly relearning most everything. I feel like I am using a hatchet >> with the sharp side cut off. When you cut the sharp side off a hatchet, you >> end up with a hammer. >> >> I have an automotive radiator to repair. The part is plastic. I have two >> 3D printers, neither enclosed. The motor was extremely overheated by >> running out of coolant. Fortunately(I think 🤣), it still runs good. Shows >> no sigh of damage except of the pressure ring in the filler neck is eroded >> away. Using testing liquid I detect no presence of exhaust gases in the >> coolant and the exhaust system looks clean. >> Researching what plastic to print I chose PEEK because of the high glass >> transition temperature - ~140C. I asked Richard at Wichita State Univeristy >> if he could print PEEK. Richard does amazing things. He doesn't have a >> printer that will print PEEK. Richards reply introduced me to Chris >> Rempe(also at WSU). He has a printer that will print Ultim 1010. Ultim 1010 >> has a higher glass transition temperature, so I replied to ask him if he >> could do it. >> Somehow, I included you guys. I haven't heard from Chis Rempe, but this >> project will probably become a radiator replacement as a new radiator from >> RockAuto is USD85.00 up to USD125.00 plus shipping. >> This car belongs to my sister-in-law. I was hoping for a quick little >> 'magic' repair. Heh, not likely. > Sorry Stuart, but at a 140C glass temp and 15 to 20 psi pressure > I don't think even PEEK is a long term solution. I've bought some > stuff from Rock Auto in the past. Everything fit. But I quite buying > used vehicles with fogged up headlights. > > I share your views on govmnt and hell phones. I have one, but > since I've been 99% retired for 23 years now, just some occasional > consulting with our local daytime AM'er, I let the sim card expire > about 9 years ago. I miss it like a broken leg. If I ever get the urge > to make the grand tour west of the river to see my 4 boys again I > might see about a new card. But at 91, macular degeneration > is spoiling my enjoyment for driving the length of SD at WOT & 3 AM. > > Take care of #1. >> I love the LinuxCNC community! > Proving forever that you are "one of us". Thank you. >> >> Regards, >> Stuart >> >> >> On Sat, Jan 31, 2026 at 4:11 PM Stuart Stevenson <[email protected]> wrote: >> >>> LOL! Andy, >>> >>> I have that on there only to screw with government snoops. I don't expect >>> them to honor it. For one thing, they must have some honor to begin with >>> before they try to use it. >>> >>> On Sat, Jan 31, 2026 at 12:54 PM Chris Albertson < >>> [email protected]> wrote: >>> >>>> >>>> Plan on a 360–450°C hot end, 120–160°C bed, and a fully enclosed, >>>> actively heated chamber (70–150°C). But general guidelines are not >>>> enough. It depends on the exact brand of filament and your own testing. >>>> >>>> The best bed heater is dirt-cheap. You put direct mains AC on the >>>> heater and control it with a contractor that is designed for water heaters >>>> or electric home heating. Same for the enclosure heat. You need >>>> insulation on the enclosure; plexiglass will not be enough, the ceramic >>>> felt used on stoves works. >>>> >>>> A cheaper solution is to re-engineer your product so that it does not >>>> require PEEK. >>>> >>>> OK, you can’t redesign the part? You can send it out to a commercial >>>> printer. But then, “why PEEK?” have them print it in stainless steel. >>>> >>>> >>>> >>>> >>>> >>>> >>>>> On Jan 31, 2026, at 4:44 AM, gene heskett <[email protected]> wrote: >>>>> >>>>> On 1/30/26 23:22, Stuart Stevenson wrote: >>>>>> Addressee is the intended audience.1 mm >>>>>> If you are not the addressee then my consent is not given for you to >>>> read >>>>>> this email furthermore it is my wish you would close this without >>>> saving or >>>>>> reading, and cease and desist from saving or opening my private >>>>>> correspondence. >>>>>> Thank you for honoring my wish. >>>>>> >>>>>> >>>>>> >>>>>> ---------- Forwarded message --------- >>>>>> From: Stuart Stevenson<[email protected]> >>>>>> Date: Fri, Jan 30, 2026 at 10:06 PM >>>>>> Subject: Re: Small part >>>>>> To: Sack, Richard<[email protected]> >>>>>> CC: Chris Rempe<[email protected]> >>>>>> >>>>>> >>>>>> Chris, are you able to consider a part from a private individual? I >>>> have a >>>>>> single small PEEK part. Ultim 1010 would be a little better. It is a >>>> repair >>>>>> part for an automotive radiator. I can supply a solid model and/or an >>>> STL >>>>>> file. >>>>> Stuart: >>>>> What sort of temps are needed for PEEK? I have what I thought was a >>>> comprehensive chart of such, but it doesn't have a reference for PEEK. >>>> Apparently the composer of this chart wasn't concerned with materials >>>> needing more than 300C nozzles. Even that is getting pretty far into the >>>> far end of heater lifetimes mortality curve. I do some PC, but even at 285C >>>> I'm losing heaters in 100-150 hrs. That also needs a bed temp around 100C, >>>> well beyond most under $1500 printers. The printer I've rebuilt to do that, >>>> an Ender 5 Plus now has 72 volt closed loop stepper/servo XY motors, and a >>>> 36 volt bed supply that an get to 125C. I also have a Sovol sv08 MAX. Which >>>> is acting like its going to be my next fav printer. Either one warms up a >>>> 15 amp breaker in the service. >>>>>> Thanks >>>>>> Stuart Stevenson >>>>>> 4638 Farmstead Ct >>>>>> Bel Aire, Ks 67220-1617 >>>>>> 316-258-0953 >>>>>> [email protected] >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Addressee is the intended audience. >>>>>> If you are not the addressee then my consent is not given for you to >>>> read >>>>>> this email furthermore it is my wish you would close this without >>>> saving or >>>>>> reading, and cease and desist from saving or opening my private >>>>>> correspondence. >>>>>> Thank you for honoring my wish. >>>>>> >>>>>> >>>>>> >>>>>> On Fri, Jan 30, 2026 at 9:49 PM Stuart Stevenson<[email protected]> >>>> wrote: >>>>>>> Thank you. >>>>>>> >>>>>>> >>>>>>> Addressee is the intended audience. >>>>>>> If you are not the addressee then my consent is not given for you to >>>> read >>>>>>> this email furthermore it is my wish you would close this without >>>> saving or >>>>>>> reading, and cease and desist from saving or opening my private >>>>>>> correspondence. >>>>>>> Thank you for honoring my wish. >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Fri, Jan 30, 2026 at 3:26 PM Sack, Richard< >>>> [email protected]> >>>>>>> wrote: >>>>>>> >>>>>>>> I am unable to print PEEK. >>>>>>>> >>>>>>>> PEEK needs a very high temperature nozzle, very hot build chamber, >>>> etc. >>>>>>>> >>>>>>>> >>>>>>>> Chris Rempe has fancy and very expensive 3D printers; he may be able >>>> to >>>>>>>> help you. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> *Richard Sack *Research Support Manager & Design Engineer >>>>>>>> Project Innovation Hub | College of Engineering >>>>>>>> John Bardo Center 105 >>>>>>>> Wichita State University |1845 Fairmount Street Wichita, Kansas 67260 >>>>>>>> < >>>> https://www.google.com/maps/search/1845+Fairmount+Street+Wichita,+Kansas+67260?entry=gmail&source=g >>>>>>>> | Box 209 >>>>>>>> Schedule a meeting >>>>>>>> < >>>> https://outlook.office.com/bookwithme/user/[email protected]?anonymous&ep=plink >>>>>>>> (316) 204-1341 >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> *From:* Stuart Stevenson<[email protected]> >>>>>>>> *Sent:* Friday, January 30, 2026 1:10 PM >>>>>>>> *To:* Sack, Richard<[email protected]> >>>>>>>> *Subject:* Small part >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Richard, >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Are you able to print PEEK? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Thanks >>>>>>>> >>>>>>>> Stuart >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Addressee is the intended audience. >>>>>>>> >>>>>>>> If you are not the addressee then my consent is not given for you to >>>> read >>>>>>>> this email furthermore it is my wish you would close this without >>>> saving or >>>>>>>> reading, and cease and desist from saving or opening my private >>>>>>>> correspondence. >>>>>>>> >>>>>>>> Thank you for honoring my wish. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>> _______________________________________________ >>>>>> Emc-users mailing list >>>>>> [email protected] >>>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>>> Cheers, Gene Heskett, CET. >>>>> -- >>>>> "There are four boxes to be used in defense of liberty: >>>>> soap, ballot, jury, and ammo. Please use in that order." >>>>> -Ed Howdershelt (Author, 1940) >>>>> If we desire respect for the law, we must first make the law >>>> respectable. >>>>> - Louis D. Brandeis >>>>> Don't poison our oceans, interdict drugs at the src. >>>>> >>>>> >>>>> _______________________________________________ >>>>> Emc-users mailing list >>>>> [email protected] <mailto:[email protected] >>>>> >>>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >>>> _______________________________________________ >>>> Emc-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/emc-users >>>> >>> >>> -- >>> Addressee is the intended audience. >>> If you are not the addressee then my consent is not given for you to read >>> this email furthermore it is my wish you would close this without saving or >>> reading, and cease and desist from saving or opening my private >>> correspondence. >>> Thank you for honoring my wish. >>> >>> > > Cheers, Gene Heskett, CET. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Don't poison our oceans, interdict drugs at the src. > > > > > _______________________________________________ > Emc-users mailing list > [email protected] <mailto:[email protected]> > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
