DIY (ish) AWC pump

[leevh]

I'm considering trying to build a water change pump(s) using this method and almost exactly those parts:
and combining with a Kamoer KHL pump (same one found in the X2SR system)

My reasoning is mostly because I want to control them with my Hydros controller, and need enough power to pull water up 12 feet vertically. There doesn't seem to be a lot of options otherwise.

I'm basically looking for the EASIEST way to get a stepper pump that plugs into a controllable outlet. Does anyone have experience doing something like this and have any advice? thanks!

 

[Tavero]

I'm considering trying to build a water change pump(s) using this method and almost exactly those parts:
and combining with a Kamoer KHL pump (same one found in the X2SR system)

My reasoning is mostly because I want to control them with my Hydros controller, and need enough power to pull water up 12 feet vertically. There doesn't seem to be a lot of options otherwise.

I'm basically looking for the EASIEST way to get a stepper pump that plugs into a controllable outlet. Does anyone have experience doing something like this and have any advice? thanks!

Wow thats a chunky boy. You sure you need all that power? Usually a nema 17 is more than enough. I mean they are moving my heat bed with 1000mm/s2 acceleration.

For the controller you probably want something like this but with more power like +1200 mA.

 

[leevh]

Wow thats a chunky boy. You sure you need all that power? Usually a nema 17 is more than enough. I mean they are moving my heat bed with 1000mm/s2 acceleration.

For the controller you probably want something like this but with more power like +1200 mA.

Thanks for the feedback! As for the parts I should have been more clear, from that video I was looking at the driver and controller, but the motor would instead be the kamoer KHL stepper and the power supply probably a smaller 24V 3A laptop style power supply cord.

That controller definitely will make me spend a bit more time looking!

 

[Tavero]

No no, i have understood your intentions. My question was if you need that power because these steppers are usually moving cnc drilling heads.

As far as i can see they are running at half power in the X2SR system anyway but if you really want to use this stepper motor you probably are going to have to get that driver from the video because there isn't a lot of choice in the 24v range.

 

[leevh]

No no, i have understood your intentions. My question was if you need that power because these steppers are usually moving cnc drilling heads.

As far as i can see they are running at half power in the X2SR system anyway but if you really want to use this stepper motor you probably are going to have to get that driver from the video because there isn't a lot of choice in the 24v range.

Ohh I see, and I agree they do appear to be running at half power in x2sr (900 ml vs 1800ml full power). Do you know if that would be because they are running it at 12v instead of 24? Or perhaps its just a microstep setting... I don't know much, I'm learning as I go

As for power, based on my need to pull water up 12 feet, most other pumps I'm not sure are 100% capable of it. Except Litermeter which is $$$..

 

[Tavero]

Ohh I see, and I agree they do appear to be running at half power in x2sr (900 ml vs 1800ml full power). Do you know if that would be because they are running it at 12v instead of 24? Or perhaps its just a microstep setting... I don't know much, I'm learning as I go

As for power, based on my need to pull water up 12 feet, most other pumps I'm not sure are 100% capable of it. Except Litermeter which is $$$..

Both are running at 24V but the X2SR system draws 1.9 A for both pumps, while in your link a single pump needs 1.8 A peak current. I think the rotation speed was scaled down in the X2SR system with the driver.

Well the X2SR system is able to resist a pressure of 32 feet according to specs. Whats why asked if you need this pump for your 12 ft.

 

[leevh]

Thanks Tavero, I really appreciate your experience! I was just reading about "ramping" stepper motor speed, I wonder if that would be missing from my plan. I basically just wanted to find a reasonable speed setting, leave it set there, and just power on/off at the outlet. But I wonder if that will damage or fail because I'm not ramping up to that speed?

 

[mindwalkr]

A lot of stepper drivers have "smooth start" as an option...

I need to replace a GHL Maxi for AWC and need to pump salt and fresh water up from my basement, so I am thinking of a similar project, but using this pump: for high flow or this one for a flow rate similar to other dosers.

McMaster 1/4" quick disconnect could provide barbed end to the pump and push fit to 1/4" or 3/8" flexible tube. Expensive though!

Add in a ESP8266EX for wifi and Bluetooth access, program it in something easy like MicroPython and you have a web interface or API.

Add on an app written in Flutter to talk to the API from Android or iOS and you have something matching some of the commercial offerings, but that's a lot of work!

The cool part though is that code could all be reused for any size dosing head....