5160HV Pro stepper driver watercooler 

@@AlexanderTasch yeah I know but he also had to increase the fittings hole size and tube if I recall correctly that would mean his system is alredy somehow restricted. more than harder to manage I would say harder to design. You should "equal" flow length and pressure drop so flow is distributed homogeneusly. Not my area of Expertise as I'm an CAE structural engineer not a CFD one but I've done some also. Also you should take into account the heat power to disipate, flow turbulence and time of resisdence. Temperature delta between the exchange face and flow.... Regarding PC watercooling you have to take into account CPUs TDP is double or triple the one on one of those 5160s but you have 4... Also pc watercooling flow distribution is not done by neither 4 nor 6 mm ID tubes... mine is 16mm OD acrylic tube... so quite more "flow" going through unrestricted...

@@Novacat170 The power supply listed in the description is 350W. Let's assume 100% load and all of this ends up in the cooling loop.350W at a fairly low flow rate of 60l/h = 16.67ml every second means 69.75 joules per degree celsius every second. 350W/69.75J=5°C delta between the coolest and warmest spot of the loop. The delta between the drivers is going to be much smaller.

@@diavolescaCZ As I said I'm into structures not fluid dynamics. But What I think seeing what hapens in i.e: my computer with the cpu and graphs card in series vs in paralel is that it helped when taking it to the extreme. Also regardng that "values you said". theoric max disipation could never exceed SPU power (and that would mean no power left for movement) but that with a flowrate of 16.67ml/s thats 16.670mm3/s through a 6mm pipe or 28.3 mm2 area. That would mean "if flow was "homogenius" on all section... water would flow at nearly 600mm/s. how many time is it in the loop? how many heat would that drop take and therefore cool from the motor? If it take less "heat" to achieve equilibrium it will have to get hotter so delta is bigger to water to transfer that heat power... this is not an easy matter. and I never said that actual water temp increase would be big I said that the "equilibrium" temp would be diferent for each driver as each will see a hotter water (maybe tenths of a degree I don't know but its a fact. to not have that problem It should be design in paralel but thats a harder to do (and may be innecesary like trying to print or move at 3000m/s but they are pushing the boundaries so why write so much against a posible improvement in efficiency and max performance??)

This is probably incredibly overkill as is

They don't do multiple paths even in watercooler when you have multiple gpu😅

No in water cooling the entire waterloop is the same temperature because of how fast the water flows and how long it takes for water to release that heat through the radiators. I actually have a watercooled 3D printer with a thermistor on the "input" and "output" lines and they show the exact same temperature

Can you share a post or a video showing that setup please?

@@Shinobubu If it was the same temperature on inlet and outlet, then no heat was absorbed by the water. It may only have increased a little as water has a high specific heat, but they can't be at the _same_ temp

Yeah this is grossly overkill and unnecessary, still looks cool tho

Did i mention it was useless and just for the coolness of it? Well it might actually help in some ways too but mostly just because its cool

@@Vez3D It won't just leak. It will leak, kill drivers, kill board, and kill Raspberry. But looks cool, yeah. :)

As you can see...there is not really enough space for that 😂

It's not a cpu that has a high W/cm² the drivers don't output that much heat, this design would still work without any fins at all.

@@twanheijkoop6753 mate you've never used 5160s at 55v have you?!