RE: [CAD_CAM_EDM_DRO] Coolant PUMP systems

Hmm... mold problem... never thought about that...

Wonder what antifreeze + water soluble oil + water would do... current I
do this in a spray bottle... 1 part water + 1 part Water soluble oil.
Seems to work fine...

The reason I want a coolant system is because I want to machine Ti. I
can do it right now... but smokes... and I have to be sitting there
spraying constantly... so I figure if I do a flood system... I just sit
watching it [just in case of fire].

I'll come up with something... but thanks for the warnings of ferrous
metals, and mould problems.

I like the coffee can idea... just worried about it rusting... so a
plastic bucket with the pump in it should be another idea.





-----Original Message-----
From: elson [mailto:elson] On Behalf Of Jon Elson
Sent: September 26, 2002 2:12 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Coolant PUMP systems

Lloyd Leung wrote:

> Does anyone have any suggestions on how I should implement a coolant
> pump system?
>
>
>
> My current plan is this:
>
> - Splash shield over my lathe/trough
>
> - Flowing into a bucket, allowing sediment to sink.
>
> - Flowing into a second bucket
>
> - Cheese cloth over aquarium pump (low pressure, high volume)

Well, filtering seems to be less important than I expected. I set up a
pretty
elaborate filter, and it tended to get blocked with wood dust from
sacrificial
fixtures, when I used those. One bucket, with a weir made of sheet
metal
will do fine.

I used a condensate pump, normally used to pump condensed water out
of air conditioners where a simple gravity drain won't work. Little
Giant
is the brand name. These are often on sale in various catalogs, either
machine shop related or surplus items. I can't say for sure whether the
aquarium pump will have enough flow, or be able to withstand the fluids
involved. The little giant has done VERY well for me.

The big problem with flood coolant in the home shop is it is not used
enough
to keep the coolant aerated, and it tends to grow mold. Engineered
Lubricants
encool has been the best for me, it lasts a year or so before growth
starts.

Jon


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