On 4/13/26 11:31, Dave Engvall wrote:
Warning! Rant ahead!
Ouch! 2,4,5 T (agent orange) has a bad rep! You dodged the bullet.
Did I? All 3 of my first wifes children I made are gone, the 2 girls
with cancer & the boy from trying tto mix scotch and a hundai, and now
my middle son by wife #2 is grand mall.
Statistics of ones are a bitch! When young one does all sorts of jobs.
Absolutely. All to keep buying groceries for my tribes.
HS picked fruit, awful job. For 4 summers I was a forest service fire lookout;
isolated lonely but financed a degree. Got drafted when the Berlin Wall went
up; assigned to Dugway Proving Ground as a 939.30. Did plague survey and then
worked on a way to use chemicals detectable at low levels to quantitate
distribution of aerosol sprayed on a large grid, think nerve gas, etc. Moved
back to Pullman and did c14 and H3 dating. C14 for archeological sites and deep
aquifers and H3 for shallow wells. When carbon dating went slack for a month I
got loaned to Polymer Chemistry to do a Mol Wt determination on straiten ( a
long-chain polysaccharide extract from larch. Next was a job as a
chemist/microbiologist for Wa Dept of Agriculture checking to see if ag
products met label guarantee on feed and fertilizer. Protein, fat, and fiber on
feeds and N,P,K on fertilizer. Various drugs and antibiotics in feed,
microscopic analysis of feed and fertilizer for specific contents and
adulteration. Being lazy I managed to sneak a pdp11 into the lab by saying what
it would do not what it was. We replaced readout on the Perkin-Elmer AA with
the 11 and 12 bit A/D. I did the electronics and one of my chemists did the
software. It did the job until we replaced it with a new AA that still didn’t
have the capabilities of our custom system but was off the shelf. I never did
get the lab system up to the point where I could report results directly off
the database. Administrators tend to get paid by how many people they supervise
not by what the do so there Is no incentive to be efficient. Retired the first
day I could. Good decision!
On Apr 10, 2026, at 5:14 AM, gene heskett <[email protected]> wrote:
On 4/9/26 17:38, Dave Engvall wrote:
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.
I've had no idea you were into the chemistry of that sort. Good to hear from
you. I spent a month or so in my mid teens walking around in a 2500 gallon
stock tank, up to my gonads in warm liquid with a boat paddle mixing it that we
eventually sold to the farmers as 2-4-5T weed killer Took me about a month to
get that stink out of my nose after I got a better job in electronics.
Probably not that good for my potential git if I ever found me a woman.
Fortunately one found me but it was about 5 years later.
Now I've outlived 3 and the 3 git that first one gave but now I'm 91 and still
here. Glad to see you are too, Dave.
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.
An opration often missed until the hammer falls. . .
{snip}
Take care of #1.
I love the LinuxCNC community!
Proving forever that you are "one of us". Thank you.
And proud of it.
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.
good point, Stuart..
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
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Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
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-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law
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- Louis D. Brandeis
Don't poison our oceans, interdict drugs at the src.
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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.
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_______________________________________________
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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
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.
_______________________________________________
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