Chamber flush system build log.

[Jonnyofalltrades]

Fair warning about oil and water based lubes/coolants. The oil "seals" the water and creates a perfect environment for anaerobic bacteria. I suffered greatly from this thinking that the source of my continued giardia was due to my outdoor activities.....

Nope. Twas the coolant all along. Keep it breathing or keep it skimmed.....or stock up on Flagyl.

Good advice.
Especially with tanks that don't run constantly, bacteria LOVE a good oil film on coolant.
A circulation pump or an aquarium bubbler is excellent insurance against rotten coolant.

 

[Jud96]

I recently threw together a muzzle flush system on my Prototrak lathe. I added a T fitting off the factory coolant hardline with two valves. One valve leads to the flexible coolant hose and the other to a 3/8” hose with a rotary air fitting. I can simply open and close what line I want oil to come form. I’m using Master Fluid Solutions Trim OM287 cutting oil and pumping it with the factory coolant pump and it’s thin enough by itself to flow well and flush chips. The OM287 is lower viscosity than some of the other cutting oils, but it’s still designed for reaming and drilling. I may upgrade to a 1/4 HP pump to increase flow and pressure, but I’m happy with it for now.

I decided to go with straight oil vs coolant for a couple reasons. I didn’t want the rust or the possible bacteria from coolant. I also know coolant destroys paint on machines. Final reason is a straight oil will lubricate better and potentially leave a better finish and lead to longer tool life. Other than smoking when turning and being thicker, I see no other disadvantages. It also lubricates your machine while you’re at it

 

[tobnpr]

I've never even considered water soluble lubricant for the lathe because there's zero ops I perform that generate the level of heat (e.g. coolant) where it would be advantageous, not to mention the downside of contamination.
Not a single advantage I can think of.

 

[LVLAaron]

Master Fluid Solutions Trim OM287

Anything scary in the SDS? Any odor?

 

[spennebake]

Fair warning about oil and water based lubes/coolants. The oil "seals" the water and creates a perfect environment for anaerobic bacteria. I suffered greatly from this thinking that the source of my continued giardia was due to my outdoor activities.....

Nope. Twas the coolant all along. Keep it breathing or keep it skimmed.....or stock up on Flagyl.

Oh dang! Thanks for the insight. I don't need any health issues. I'm already old

 

[Jud96]

Anything scary in the SDS? Any odor?

I didn’t really look to hard, but nothing jumped out at me. It smells a little bit, but not as bad as Tap Magic or Rapid Tap.
SDS linked below

https://www1.mscdirect.com/MSDS/MSDS00014/02602878-20110708.PDF