You did EXTREMELY well with the product. Having used a FogBuster forever myself I agree with you on the mounting issue right our of the box. Keep it up :)

Rad design! I bought all the components you showed and realised "there has to be a simpler way". I found ZK-SMC01 Micro-step controller. It has a serial port and other control ports to start and stop it from the cnc controller.

Excellent idea. Thanks for sharing all the details. 👍👍👍👍

The needle valve was the main reason for me to go with a pump for ethanol aswell. Soo much better!

I love the setup which you've developed. I have a Tormach PCNC 1100 S3 which I developed a flood and air system for, but even with an enclosure the GPM's and air are too much. I do have a flow control via diversion, and a wash down hose setup; but when I run the Tormach RapidTurn I must run dry. I've explored many designs, but yours appears to be the most practical ($400 for a Fog Buster??) Pump and fluid transfer systems are no issue for me. Retired Lt. FireMedic/ ED-RN (peristaltic pumps for IV's) or 1500GPM+ for Fires, fluid dynamics are the same. I did look at your website, but sadly I found no BOM, drawings or schematics; no problem I did have a couple of yrs. of electronics. Thank you, and best wishes!

The use of a peristaltic pump for fluid delivery is a great idea. I've tried two different types of cheap Chinese misters, and have been so frustrated by their inconsistent fluid delivery amount. It seems that just looking at the adjustment screw wrong could cause the fluid delivery amount to change from almost none to a flood level. I was considering purchasing just the genuine 'fog buster' nozzle assembly, but considering the fact I want two and they cost $200USD per, it was something I was having trouble justifying. On top of that, I'm not confident that their fluid output metering is that much better (maybe it is though, I don't know). I have an old, factory installed, Bijur coolant system on my machine, so I all I needed to add was the nozzles and metering. I saw a recommendation for the ZK-SMC01 controller in another comment, but decided to go with the SMC02, as it has the amplifier built in. I things setup so that the SMC02 receives 24V with an M8 command (flood coolant) - I have mist reserved for pure air-blast. I have the SMC02 configured so that when it receives power and turns on, it will immediately turn on the pump. The SMC02 has a dial to control pump speed and I've mounted the controller so that I can easily see the pump speed and adjust it. I see what you mean about a small pump size. I ordered a 180ml/min pump as it was slightly cheaper than the 110ml/min and available more quickly through prime. To achieve the correct flow rate I have to spin the pump pretty slowly, which causes pulsations of the fluid output. It would definitely be better to have a smaller output volume and spin the pump at a faster speed. Fluid flow comes from a pressurized container that also provides the air. I need to do more testing to determine if it's better to siphon fluid from an unpressurized container though. Right now, it takes a while for the system to prime and fluid flow to start. I'm not sure if there's a small leak or if the fluid suction lines are too long.

Love that surface finish！

Nice to see, thanks. Just to check I'm reading this right: did you go the stepper pump route, because you didn't want a needle valve, and you can control the flow precisely with the pump? So did you use compressed air previously, to push coolant out of the tank?

With Planet-CNC you can omit the PWM generator. You can regulate it directly via the control controller. A Thomas pump is sufficient as an air dispenser, I've been using it for years. Initially with the PWM gerator.

Great video

Hi, awesome channel for beginners like me! thanks! though I don't quite follow how is the tank connected to the rest, the coolant is still pressurised when using the peristaltic pump?

That's a nice solution. Silly boy... you asked for our thoughts! (1) The smaller right-angle fitting for the lubricant is nicer, but could you have used a straight connector beside, and parallel to the air inlet. It would need an angled hole in the aluminium part to meet up with the copper tube. (Alternatively, two holes at 90 degrees, and plug the open end of the cross-hole.) (2) For the electronics... wait for it... use an Arduino! I know you did not want to use one, but an Arduino Nano in a small case can be a tidy, flexible, and reliable solution. It also opens up opportunities for things like increased mist for the first few seconds of a cut, quick flow rate control, auto-stop of mist when spindle stops etc. Love your videos, thanks.

Any reason not to add the fluid to the flow in the aluminum mounting block vs the bottom block? I also hate those little needle valves. Nice job!!

Slowly turning the US to metric, good job))

I stumbled on your KZfaq channel a few months ago wile making research on how to cut aluminum with my CNC. I found a lot of very useful information thanks to your detailed videos that I find excellent. I have sometimes good results and other time bad results. Your design described here looks very promising for me to cool things down and I went ahead and ordered all the components to try to reproduce your idea. I started with the electronic and I have everything working with what I think is exactly the components you have except for the peristaltic pump where the pump is driven by a Nema 11 instead of a Nema 17 that you have. When running the pump, the motor driver gets very hot even with the heat sink, stopping the pump on and off; probably a safety feature when the chip gets too hot. I haven’t put all the electronic in a box yet and everything is fine when I blow some air on the chip and I will probably have to install a fan to cool down the motor driver. I see you didn’t mention anything about it, but did you get any similar problem with your set-up after using it for a while and if so, how did you resolve the issue?

How many psi are you running? I either can't get enough airflow to the nozzle or the pressure causes the coolant to push past the pump. Thanks

BTW, I liked and subscribed.

Nice idea, what coolant do you use? Thanks

so good,…

Nice mister mister! A low flow pump is a good idea! I'd use a 3d printer ramps board that I've bot laying around, with an arduino 2560. I can control it with a laptop using gcode at any speed and length of time. Still, I'd like to control everytging from the controller and gcode itself though. Maybe a normal solenoid to cut power to the pump controller that is controller by the same pin as the sokenoid valvue?

I am installing the air and fluid lines in my DIY CNC build. I have two 6mm lines installed, one for air and one for coolant. As I look on the web it looks like the coolant line is 4mm mostly. Is this critical for the system to work? I will be drawing fluid about 25 ft from the reservoir. Thanks!

Nice project! However; I would like to see the whole setup? Where is the pump and the reservoir located? What is the approx length of the tubes between pump and nozzle an between reservoir and pump?

Could you please share tips on how you get those beautiful surface finishes?

If you are using a peristaltic pump to deliver the coolant, why does the reservoir need to be pressurised?

Great idea, but strange you did not use a standard stm32 mcu for 3-8 axis/motor boards, like Makerbase or Bigtreetech, they come with 5,12,24,35,48v stepperdrivers out of the box and are easily programmable and can integrate into most cnc controllers via spi,uart,i2c etc. they cost about 30-60$ . Anyway , really like your videos.

I wish you to sell all of them as ready-to-use :)

I cant find any drawings on the webiste for the fog buster or fixture plate

By the way i dont understand why you need air presure to the tank, That small pumpe should able to suck fluid up from below 5-10 meter. so the tank could be maby a coca cola bottle. Also i think that you could put the small 3mm tube into the Lock line, think it would be easy , and look a lot better.

Heya Jorg, setting out to order parts for one of these. I am pretty lucky that I can tap into the extensive, but local used market in China but I think you have found the flow rate of yours is way higher than it needs to be, right? I am guessing you don't even use it at 1/10 of its rated output...? Maybe more like 1/50th? 3ml/min that's about a cup an hour. I'd be surprised if you use that much, even right? If you feel like it, could you run it someday for a min or two and check "exactly" how much you spat out;)?

I like the video but please, edit the sound level as i cannot hear anything, you are super quiet compared to all other videos on YT

Any more available. Sir

Couldn't this also be achieved with a paristaltic pump that runs off a DC motor, then drive that with a small adjustable power supply? It seems like it would avoid most of the control boards needed for the stepper.

Even Better.....Stepper motor control with arduino - Attiny84 & A4988 .......no progamming nedded

Seems like a simple brushed DC pump motor would be far less expensive than a stepper. The motor system seems overly complex, I would think a pump doesn't need that level of precision to require a stepper...

No HOW it works. No details. Just a video of how you did it, but not even a single word of explanation of what you are doing. I won't give this a dislike, but nor will I give it a like. However it is definitely not what I want to spend my time watching.

36820-MS. Multifunctional Stepper Motor Drive-Control Board 5USD