DIY "FogBuster" Under $50

[@andregross7420]

Hi Chris, I don't mean to be a keyboard commando but I bought some of that Lowes Vinyl tubing for a project, and when in contact with oils or petroleum substances it hardens and shrinks within a year, almost making it unusable. Maybe some polypropylene like would be better?

[@ChrisDePrisco]

Good to know, thanks! I'm really hoping to not have to use it that long but I'll keep that in mind if I run into trouble.

[@Xraller]

You need a smaller diameter hose that way you can draw less fluid with less pressure

[@neilcunningham5542]

I am going to do the samething. I bought an mixing block and nozzle from amazon. for 18 bucks cheaper than making one. I am going to also pressurize my fluid. so did you juts buy some pvc plugs and drill tap 1/4 in fittings to get the air in and out of the canister? That is what it looks like.

[@russtuff]

I think it's a great video. The people who are telling you to buy cheap mister from China haven't tried one. Almost every person I've spoken to who uses that style (including the actual Noga brand) complains about them. Not enough coolant flow, to much flow, drips/leaks, super finicky to use, etc. The Fog Buster method appears to be superior.

[@GeofDumas]

There's a locline misting system you can get on amazon for $12. Works alright but would work great with the flow valves you added. You might want to pick that up just to keep fewer lines from being near the tool

[@smallcnclathes]

I have a Noga I use on my lathe, I find it works well. BUT, it is very easy to contaminate the air in the workshop with a visible fog around the machine I use it with high air and little coolant which is almost dry but still lubricates and cools Or I use low air with more coolant and it tends to dribble on to the work which can get a bit messy Both these methods do not contaminate the surrounding air, but neither method works very well on the mill

[@watahyahknow]

from wat i seen with working diy fogbuster is that you need to pressurize the canister that holds the fluid along with the air going intoo the nozzle the fressure above the fluid pushes the fluid intoo the feedline , you only need verry little pressure and have the regulator before the bottle t off intoo the bottle and continue the same line intoo the nozzle

[@Bigwingrider1800]

I MADE A GRAVITY FEED. 5 GAL BUCKET ON THE BACK OF THE BP HOSE AND VALVE. TOOK A BIC TO THE END OF THE TUBE (SMALLER HOLE) EASY TO CONTROL. AND BEST OF ALL NO COMPRESSOR UNLESS YOU WANT.

[@cbpuzzle]

Thanks for this video, Super helpful! I need a mist system. I'm going with an ebay magnetic nozzle system similar to the ones mentioned below. I'll use your mix of brass and PVC depending on what inlet size water filter housing I can find.

[@ray-charc3131]

i was also curious mist coolant a couple years ago when the commercial one was not so cheap for me to afford buying one, i investigated and built one also did a small a diy compressed air tank. coaxial aligning the two pipes/tubes, worked but not very sucess one....

[@AmateurRedneckWorkshop]

I am sure you had a lot of fun working it out. Like many of my projects (maybe all) it is just not worth doing. See ebay, $6 to $15 mostly with free shipping. Keep on keeping on.

[@lucasimark7992]

Isn’t this more like the Venturi effect?

[@mihailfelixdumitresc]

Yes, it is Venturi, but it doesn't matter. Venturi, Bernoulli, it's all Russian ! 😄

[@bulletproofpepper2]

I see what your trying to do. I work over seas and have made a Venturi from pipe fittings. Over the years I have made some that can bow in the sides of a 5 gallon bucket. The bucket was the makeshift catcher for the stuff being vacuumed up. Your hole was too close to the tip and your hose needs to be notched on the exit side.

[@troyd-motorsport9933]

What's the DuPont container you use? Is it like a water filter container or something?

[@Bigwingrider1800]

HOLE AT AN ANGLE

[@JPGuay]

Perseverence always pays off-- Congrats

[@ColinMacKenzieRobots]

If you used 1/8" OD tube instead of 1/4" I bet your earlier venturi experiments would have worked fine....The 1/4" tube against 1/4" locline created an air splitter instead of venturi effect (thus the bubbles in your coolant). Venturi requires a bottleneck. It occasionally worked. However, you graduated to fogless which is much better anyway so all is well that ends well. :) Perhaps try a MIG welding tip instead though...your end is much larger than it has to be for fogless.

[@repalmore]

I've used the bernoullis principle a bunch of times but that was for model airplanes. I've used the venturi effect a bunch of times. Made a dewatering pump that would vacuum out water from a container or vessel without risk of damaging a pump. Also made a sand blaster this way also. Like the Harbor Freight ones but mine used 180 CFM compressor. Had a BLAST to say the least. OK that was on a WING and a prayer;o)

[@FieryWACO]

What kind of DuPont tank is that? Where did you get it? And, that oscillating machining on the CNC that you do, is it called something in particular? What does it do (besides the obvious)? I had noticed it on some of your other videos where you use the mill to cut thick material. I haven't seen that before.

[@ChrisDePrisco]

That's just a water filter from Menards or probably any other big home improvement store. The milling strategy is called trochoidal milling and it basically means that you can make a slot taking many small widths of cut rather than using 100% of the diameter of the mill. You can actually make slots faster with less stress on the tool. NYCCNC has a good video about it, "Stop slotting the stupid way" I think.

[@dizzolve]

I wonder if your system would have worked with a much smaller feed tube without pressure on the tank

[@beegreengrowersunionwv.7523]

I'm going to use mineral oil as my cnc coolant on aluminum. Should I use 50 / 50 mix with water ? I read that some use 10 oil and 90 water. Any Ideas would be appreciated.

[@troyd-motorsport9933]

I buy the coolant in a 5l container that is mixed with about 1:5 ratio with warm water if that helps.

[@ColinMacKenzieRobots]

Specifically the term is the Venturi Effect if you're interested, for gases and liquids, but it is an effect of the Bernoulli Principle so you're still right.

[@bradmcconnochie3204]

yo! you can get a spray mist coolant system for around ten dollars off ebay, comes with all the fittings, anodized aluminium body, valves and brass nozzle on a articulated hose. all the best!

[@incubatork]

Yes and cheaper again from aliexpress, they all come from there anyway so why line a 3rd parties pocket.

[@WildmanTech]

Thanks for posting this. I like what I'm seeing in the comments too.

[@ddistrbd1]

Well done,I went through all the steps you did except I had a cheap Chinese mister with a smaller 4mm fluid intake,but the add on regulators,push to connect fittings, tubings of two different diameters, flow control valves,sealed water filter housing,etc. were all needed to make this project work . overall I'm very pleased with the result.now I'm thinking maybe I should make one for my lathe.

[@ctprjcstv3998]

The air stream is perpendicular to the coolant line. You should make it oriented

[@tomharrell1954]

Hi Chris, I was just surfing thru YT and started watching some of your videos. Loved watching you making the falcon. Anyway, breathing mineral oil vapor can give you a wicked case of pneumonia. I don’t know if you monitor these comments or if you actually use the spray. If you use it maybe ware a mask. The deal if I remember right anaerobic gram neg bacteria get in the spray, then in you and cause a pneumonia. If you start getting sick a lot that maybe the cause.

[@DavidKenny64]

I think you could have done it for the price of the needle valve and the hose. Put a hose connector in the cap of a sturdy plastic bottle. Cut the bottom off the bottle. Hang it upside down a foot or more above the air and oil outlet (venturi), putting a cover(not air tight) over the top of your new reservoir to keep dust out. I would put the needle valve as close to the venturi as possible and would help immensely to use a much smaller tube on the outlet side of it as well. Think about how the oil must go through the needle valve, then travel down this much larger tube. It will want to pool up and fill the tube before moving down it, defeating the purpose of the needle valve. Hence the smaller tube on the outlet.

[@ray-charc3131]

I use re-circulated flood coolant instead. Mist coolant use a lot of compressed air! Make a well flood coolant system would be better.

[@ChrisDePrisco]

Yea my new CNC will have flood. I just can't imagine the mess it would make on the manual mill, lol.

[@r3vo830]

Wouldn't a simple oiler used to oil wheel guns for example would have worked?

[@ChrisDePrisco]

Maybe? I'm afraid I'm not sure what exactly you are talking about.

[@r3vo830]

www.about-air-compressors.com/air-line-lubricators.html

[@ChrisDePrisco]

+Revo SeR You know, I did see that at Harbor Freight! I thought that was more for adding very small amounts of oil for air tools since the reservoir only holds small amounts of fluid. I really don't know though. :)

[@r3vo830]

Was the first thing that came to my mind, never tested how much oil/second can come out of it, though.

[@jamisusijarvi646]

its really small amount

[@GuyBarry1]

Yeah, fun to figure out but I would probably just have saved the time and spent 80 bucks on a Noga coolmist tube. thanks for sharing though, always good to learn about the mechanics and thought processes

[@baruchshad3203]

what size compressor do you use? I was thinking of a small 6 or 8 gallon tank

[@eformance]

Here's the actual patent for the Fogbuster: www.google.com/patents/US5390854 The part that is novel is the laminar flow from the long tube, it prevents atomization of the coolant.

[@galenwarren3579]

Spending thousands on a cutting device, then balk on a few hundred for a flood system to make your cuttings get out of the way and cool, and lubricate your cutting tool seems logical to most machinists. Usually this is because they either were or learned from a machinist who didn't buy his own cutting tools. Hang on that handle or crank up the feed rate, and think that all that smoke is just...fine.

[@johngalt9262]

Enco & KoolMist 25% off and free shipping is how I got mine.... but sadly those days are over, for the most part, with Enco being wholly absorbed by MSC... Haven't seen an Enco special in almost 2 weeks, which is not the norm.

[@intjonmiller]

I would have adapted a Harbor Freight airbrush. I've also wondered about just using an old air compressor that has never been drained. :)

[@ChrisDePrisco]

You joke, but do you see the little water separator on the air manifold, there? That's the second in the line and it fills up fast when I have to have the compressor running for hours long milling projects and it's always high humidity here. When I forget to drain it after 30 mins and it fills up, the mist comes out of the nozzles. :)

[@intjonmiller]

Where are you? I'm in Utah, where you can forget to drain a compressor for a year and still end up with only a few ounces to drain. :)

[@ChrisDePrisco]

Indiana. The compressor doesn't get much in it but once it's been running for a bit and gets hot I get massive condensation in that separator and general use blower line that I use to get rid of chips and stuff.

[@minnesotaice3988]

How did you convert the BP to cnc?

[@RicktheRecorder]

Yes, the whole point of a Fogbuster is that it is not a mist system.

[@Cactusworkshopchannel]

excellent!

[@meocats]

if its creating puddles you're using too much. you should not be able to see the oil deposit, only on a cardboard sheet and acumulating very slowly. See the Unist introduction video if you don't know what you're doing.

[@carlpenney901]

Not a good idea to vaporize oil where you breathe!

[@christurnblom4825]

That was painful to watch, dude. Of course, I have the added benefit of having used these before but still, watching you spray it into the air instead of towards the chips, no being patient enough to wait for the liquid to "get over the hill", not adding another tube to the other side of the needle valve and a few other things were just making me want to slap you. ...no offense, just shop-talk, you know. Glad you got it working though, even if you could have bought a descent-quality one for half the price. It's always satisfying to make it yourself.

[@BrilliantDesignOnline]

Agreed: painful-mostly skipped fwd; with a fairly pathetic result. Biggest improvement would have been just doing it on the bench until he got it right, then to the mill.

[@Roodger.eleventh]

Please KZbin stop showing me such a s.......... Please block that from my view !!!!!.

[@mrt9749]

No offense, but - Time is money... and this is a waste of time.

[@lennysweet8336]

Looks like you wasted more time then the cost of an even a more expensive spray mist unit.... What a waist of valuable time and effort!!