Advice on my watercooling setup December 15, 2014 09:50PM |
Registered: 10 years ago Posts: 140 |
Re: Advice on my watercooling setup December 16, 2014 05:03AM |
Registered: 10 years ago Posts: 14,672 |
Re: Advice on my watercooling setup December 16, 2014 09:45AM |
Registered: 10 years ago Posts: 469 |
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dc42
2. PC water cooling solutions are designed to remove around 150W of heat. You won't have as much heat to remove. For each stepper motor, you can calculate the maximum heat it generates as the square of the current times the winding resistance, times 2 because there are 2 windings. Your hot end heater will be no more than 40W and the stepper drivers will be about 1W each. This will probably come to well under 100W. So any PC water cooling pump and radiator should be more than adequate.
Re: Advice on my watercooling setup December 16, 2014 11:20AM |
Registered: 10 years ago Posts: 14,672 |
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jaguarking11
Quote
dc42
2. PC water cooling solutions are designed to remove around 150W of heat. You won't have as much heat to remove. For each stepper motor, you can calculate the maximum heat it generates as the square of the current times the winding resistance, times 2 because there are 2 windings. Your hot end heater will be no more than 40W and the stepper drivers will be about 1W each. This will probably come to well under 100W. So any PC water cooling pump and radiator should be more than adequate.
That is incorrect. The temperature goals in pc water cooling is to get the parts closest to room temp, this makes the parts overkill. A single 120mm radiator can remove 1600w of heat if the temperatures of the water are higher. The higher the differential the more efficient these radiators get.
Re: Advice on my watercooling setup December 16, 2014 11:34AM |
Registered: 10 years ago Posts: 140 |
Re: Advice on my watercooling setup December 16, 2014 12:03PM |
Registered: 10 years ago Posts: 469 |
Quote
dc42
Quote
jaguarking11
Quote
dc42
2. PC water cooling solutions are designed to remove around 150W of heat. You won't have as much heat to remove. For each stepper motor, you can calculate the maximum heat it generates as the square of the current times the winding resistance, times 2 because there are 2 windings. Your hot end heater will be no more than 40W and the stepper drivers will be about 1W each. This will probably come to well under 100W. So any PC water cooling pump and radiator should be more than adequate.
That is incorrect. The temperature goals in pc water cooling is to get the parts closest to room temp, this makes the parts overkill. A single 120mm radiator can remove 1600w of heat if the temperatures of the water are higher. The higher the differential the more efficient these radiators get.
What exactly was incorrect with what I said? I said that a PC pump and radiator would be "more than adequate", you said "overkill". What is the difference? I take the point that the water temperature in a PC needs to be as low as possible for maximum CPU speed and the water temperature for a 3D printer can be allowed to rise a little. However, the hot and and the stepper motors should be kept cool for best results and reliability, so I recommend keeping the water temperature to 40C or less. If it's much higher than 40C then the hot end cooling may be inadequate when printing PLA.
Re: Advice on my watercooling setup December 16, 2014 12:20PM |
Registered: 10 years ago Posts: 14,672 |
Re: Advice on my watercooling setup December 19, 2014 07:19PM |
Registered: 12 years ago Posts: 58 |
Re: Advice on my watercooling setup December 22, 2014 10:02AM |
Registered: 10 years ago Posts: 469 |
Re: Advice on my watercooling setup December 22, 2014 12:28PM |
Registered: 10 years ago Posts: 14,672 |
Quote
jaguarking11
At the temperatures the hot end is designed to work in (200-250c to a temperature gradient of 40-50c at the top) using copper will have little to no advantage. Most hot ends use 30-40W of power, the surface area of an all aluminum hot end is enough to get it to where it needs to be if forced air is used. Adding copper to the end will increase the weight by quite a bit while providing little to no advantage. Using copper on the heater block however could create a more stable hot end for higher speed printing.
Re: Advice on my watercooling setup December 23, 2014 01:02PM |
Registered: 10 years ago Posts: 140 |
Re: Advice on my watercooling setup December 24, 2014 10:12AM |
Registered: 10 years ago Posts: 154 |