Re: [Emc-users] motor coolant for water cooled spindles.

2022-01-19 Thread Chris Albertson 
Advice from aquariu use.  Place EVERYTHING inside the tank if you can,
filters and all.  Leaks then don't make a mess, broken hoses don't make a
mess.   Of course, you can not place the spindle motor in the tank but
assuming the motor is the only thing not in the tank, there are only two
connections that can leak.

That said, you would have never noticed the filters were leaking if they
were inside the tank.

Also, the downside of placing the pump in the tank is the pump will heat
the water.  But maybe you don't run it enough to matter I was doing 8 or
12-hour runs.



On Wed, Jan 19, 2022 at 4:07 PM gene heskett  wrote:

> On Sunday, January 16, 2022 3:34:37 PM EST gene heskett wrote:
> replying to myself to issue a warning and a fix.
>
> > I just fired up the 6040 to make a pocket for a 3mm sq nut. Noted that
> > I put
> > half a cup of lysol bathroom spray in it. But haven't disconnected it
> > so I can dump the tank in the back yard. Yet.
> >
> And I still haven't dumped it. I bought an undersink Colligan sediment
> filter just because it looked like a higher quality unit than anything
> else I'd looked at, a bit less than $50 at tsc. Then I went to the local
> hdwe store and bought 2, 1/2" pipe to 1.4" hose barbs and 3/4" bushings
> to fit the filter ports. Should have bought brass, these were split
> molded, leaving a worn die fin at the junction of the die halves. Took 4
> layers a teflon tape to seal the threads and some permagoo on the barbs
> to seal them down to about a drop a minute or less leakage.
>
> But the screw on filter can might as well not have had an o-ring seal, it
> just poured out. Taking it apart again three or 4 times I finally grokked
> it had a pressure limit built in and that if it had city water pressure
> it would push the o-ring outward in its groove and seal. At 2 or 4 psi,
> taint gonna happen. Then I spotted a raised edge on the bottom of the
> cap, measured it and it would hit some carefully machined bumps located
> outside the o-ring groove, so as it was maybe 5 thou high, I reasoned it
> might get a better grip and seal on the o-ring if it was removed, so I
> filed it off until the file was touching the rest of the bottom face of
> the cap, then smoothed it up with a 600 grit diamond plate. Stop leak
> worked. I've got about a drop every 2 or so minutes at the output adapter
>
> I've unplugged the motor, and left lcnc thinking its running about 4k, so
> the pump is running, and all sorts of particulates can be seen in the
> filter but I'm far more interested in how clear the mix looks tomorrow.
>
> Right now it's cloudy and only the ghost of the pump can be seen thru the
> plastic tank. But it appears I may have a decent filter that doesn't seem
> to restrict the flow.  And with 2 spare 5 micron filters I've got maybe
> $75 in it.
>
> Take care and stay well everybody.
>
> 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, 1940)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
>
>
>
> ___
> Emc-users mailing list
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>


-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] motor coolant for water cooled spindles.

2022-01-19 Thread gene heskett 
On Sunday, January 16, 2022 3:34:37 PM EST gene heskett wrote:
replying to myself to issue a warning and a fix.

> I just fired up the 6040 to make a pocket for a 3mm sq nut. Noted that
> I put
> half a cup of lysol bathroom spray in it. But haven't disconnected it
> so I can dump the tank in the back yard. Yet.
> 
And I still haven't dumped it. I bought an undersink Colligan sediment 
filter just because it looked like a higher quality unit than anything 
else I'd looked at, a bit less than $50 at tsc. Then I went to the local 
hdwe store and bought 2, 1/2" pipe to 1.4" hose barbs and 3/4" bushings 
to fit the filter ports. Should have bought brass, these were split 
molded, leaving a worn die fin at the junction of the die halves. Took 4 
layers a teflon tape to seal the threads and some permagoo on the barbs 
to seal them down to about a drop a minute or less leakage.

But the screw on filter can might as well not have had an o-ring seal, it 
just poured out. Taking it apart again three or 4 times I finally grokked 
it had a pressure limit built in and that if it had city water pressure 
it would push the o-ring outward in its groove and seal. At 2 or 4 psi, 
taint gonna happen. Then I spotted a raised edge on the bottom of the 
cap, measured it and it would hit some carefully machined bumps located 
outside the o-ring groove, so as it was maybe 5 thou high, I reasoned it 
might get a better grip and seal on the o-ring if it was removed, so I 
filed it off until the file was touching the rest of the bottom face of 
the cap, then smoothed it up with a 600 grit diamond plate. Stop leak 
worked. I've got about a drop every 2 or so minutes at the output adapter

I've unplugged the motor, and left lcnc thinking its running about 4k, so 
the pump is running, and all sorts of particulates can be seen in the 
filter but I'm far more interested in how clear the mix looks tomorrow.

Right now it's cloudy and only the ghost of the pump can be seen thru the 
plastic tank. But it appears I may have a decent filter that doesn't seem 
to restrict the flow.  And with 2 spare 5 micron filters I've got maybe 
$75 in it.

Take care and stay well everybody.

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, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 





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Re: [Emc-users] OT: mouses

2022-01-19 Thread fxkl47BF--- via Emc-users 
On Wed, 19 Jan 2022, andy pugh wrote:

> On Mon, 10 Jan 2022 at 18:27, fxkl47BF--- via Emc-users
>  wrote:
>
>>> Though they are rather expensive if you pay full list price. I think I
>>> found a good second-hand one.
>>
>> Just looking at the prices for those makes my pacemaker work overtime. :)
>
> Maybe there is an answer here?
>
> https://hackaday.com/2022/01/18/a-diy-cad-mouse-you-can-actually-build/

That is a good winter project.
Thanks



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