Chamber flush system build log.

[CCM]

Not quite finished but functional. It needs some paint, and I'm going to add a couple thumb screws to where the frame extends out.
Don't worry, the 3 jaw is just for mock-up.

I'm using a 1/8hp Immersion pump, plumbed up to a T so I can either run the built in coolant nozzle or the chamber flush. The rotary is mounted on a hinged frame that also extends or retracts based on barrel length.

I think I'm going to raise the reservoir 18" or so for less head height. I've got more ATF mixed in with the Astro Swiss than I'd like but it seems to be working fine.

I was able to wire the pump directly into the lathe, it has a built in 220v circuit for coolant. That really helped keep the install clean.

 

[PatMiles]

Nicely done sir!

 

[LVLAaron]

Nice job @Countrycustoms - I love the arm. I'm working on something similar, but to hang from the ceiling.

Keep your eye on that plastic hose. Won't hold up well to oil and the twisting motion, long term. I found a perfect hydraulic hose on amazon or ebay for 15 bucks.

 

[CCM]

Nice job @Countrycustoms - I love the arm. I'm working on something similar, but to hang from the ceiling.

Keep your eye on that plastic hose. Won't hold up well to oil and the twisting motion, long term. I found a perfect hydraulic hose on amazon or ebay for 15 bucks.

Thanks.
I used the cheap vinyl hose to make sure everything is going to work out the way I want. I'll upgrade after a couple of chambers.

 

[LVLAaron]

Thanks.
I used the cheap vinyl hose to make sure everything is going to work out the way I want. I'll upgrade after a couple of chambers.

I did the same. For the other hoses, I just used some fuel line. Cheap and plentiful

 

[LVLAaron]

This will be controversial... but I added a heater to my tank. I think mine is 100 or 120 watts. Floor of my shop gets pretty cold in the winter months, A little extra heat keeps the fluid and chips moving.

These heaters will get to 190F which is too hot... you'd certainly be dealing with thermal expansion on your barrel.. I run it for a couple hours before I get going on the lathe and let the tank heat up to 80 or so.

 

[CCM]

This will be controversial... but I added a heater to my tank. I think mine is 100 or 120 watts. Floor of my shop gets pretty cold in the winter months, A little extra heat keeps the fluid and chips moving.

These heaters will get to 190F which is too hot... you'd certainly be dealing with thermal expansion on your barrel.. I run it for a couple hours before I get going on the lathe and let the tank heat up to 80 or so.



View attachment 1481150

If you really want to complicate things...add a thermocouple and PID. Then you can just set your desired temp.

 

[LVLAaron]

Yeah, I've got one of these somewhere but I'm lazy.

BTW: Those tank heating pad things are great if you have a metal workbench in a cold shop.

 

[LVLAaron]

I'm really tired of the bread pan / hose running back to my tank.

I'm going to run a line from this coolant valve into the suction side of my pump and just use the lathes sump.

 

[Walt Krafft]

You might be surprised how well it works if you try running straight to your rotary coupling. No bypass, just straight to it.

 

[LVLAaron]

I agree that would be miles ahead of no flush at all... But I'm spoiled now... I like 40-50 psi. I used to run it pretty low, but have it turned up enough to prevent any "log jams" of chips around the reamer shoulder.

 

[LVLAaron]

I'm having a lucky day today.

The drain on my chip pan has a 3/8 npt thread on the bottom.. so I can just run the oil right back to my external pump and not monkey with the factory coolant system.

 

[LVLAaron]

The coolant tray feeding back to my external pump tank is a LOT nicer than that stupid ass bread pan that I knock over at least once a day and get oil all over stuff.

 

[jareese]

The coolant tray feeding back to my external pump tank is a LOT nicer than that stupid ass bread pan that I knock over at least once a day and get oil all over stuff.


View attachment 1498670

What are you using in your tray/sump to catch the larger chips?

 

[LVLAaron]

What are you using in your tray/sump to catch the larger chips?

They just land in the lathe chip pan. It's a large enough pan that the chips dont end up "down the drain"

I might use one of those disposable aluminum baking pans under there, but I don't seem to need it.

 

[jareese]

Finished my chamber flush system. Made a new thread as to not hijack this one.

Finished Chamber Flush system

Finished my chamber flush system. Contrary to what I say in the video, I need a higher PSI pump. I'm not a great videographer, so bear with me. I also said the valves backwards... DOH..

forum.accurateshooter.com

 

[INTJ]

View attachment 1372450View attachment 1372451View attachment 1372452View attachment 1372453View attachment 1372454View attachment 1372456

Since this is the mother of all chamber flush threads, I thought I would post here. I had to make a small change to my system. In the pic above, I had the return line going to a low port. 3/4" ID IIRC. Anyway, that doesn't work. The return line fills up and doesn't drain.

So I redid the drain line and it works perfectly now.

 

[INTJ]

 

[Tucker65]

After seeing this thread quite some time ago I started gathering up bits and pieces to build my own chamber flush system. I finally got it all together and running and chambered my first barrel with it the other day. The system works really well and I'm happy with how it turned out.

I used a carbonator pump I purchased off of ebay and it has way more than enough pressure and oil flow. In the video that's the amount oil oil going thru a 30 caliber barrel with a regular reamer with only a notched screw to hold the pilot on. I opted for just a remote on/off switch instead of a foot pedal like some others have used.

Anyway, this thread was great and got me motivated to build this system so I just thought I'd share my results.

New video · Saturday, Mar 23, 2024

Tap to view!

photos.app.goo.gl

 

[LVLAaron]

After seeing this thread quite some time ago I started gathering up bits and pieces to build my own chamber flush system. I finally got it all together and running and chambered my first barrel with it the other day. The system works really well and I'm happy with how it turned out.

I used a carbonator pump I purchased off of ebay and it has way more than enough pressure and oil flow. In the video that's the amount oil oil going thru a 30 caliber barrel with a regular reamer with only a notched screw to hold the pilot on. I opted for just a remote on/off switch instead of a foot pedal like some others have used.

Anyway, this thread was great and got me motivated to build this system so I just thought I'd share my results.

New video · Saturday, Mar 23, 2024

Tap to view!

photos.app.goo.gl

That's a nice setup! I really need to build a mount on my machine for the hose. I'm tired of using a tripod and clamp.