Help replace dead hotend heater (Ohm's Law and Rated Wattage) June 29, 2014 11:45PM |
Registered: 9 years ago Posts: 21 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) June 30, 2014 04:56AM |
Registered: 13 years ago Posts: 7,616 |
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True or false? Will it produce a maximum of 1w of heat?
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True or false? Will it die if more than 1w goes through it?
Generation 7 Electronics | Teacup Firmware | RepRap DIY |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) June 30, 2014 07:44AM |
Registered: 13 years ago Posts: 1,352 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 01, 2014 06:58AM |
Registered: 13 years ago Posts: 7,616 |
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NoobMan
If effective dissipation and/or temp is higher than rating, then should expect the life of the resistor to be much shorter.
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Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 01, 2014 07:50AM |
Registered: 13 years ago Posts: 1,352 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 02, 2014 06:47AM |
Registered: 13 years ago Posts: 7,616 |
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NoobMan
You are right, the general consensus is that so if we heatsink it we increase its rating. I just think the net worth of this is not necesarily predictable.
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Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 02, 2014 09:51AM |
Registered: 9 years ago Posts: 21 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 02, 2014 11:50AM |
Registered: 9 years ago Posts: 21 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 03, 2014 08:20AM |
Registered: 13 years ago Posts: 7,616 |
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MRGiacalone2005
I tried with the firmware output at 225 and when I send a print the PSU shuts down again.
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Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 03, 2014 02:51PM |
Registered: 10 years ago Posts: 469 |
Re: Help replace dead hotend heater (Ohm's Law and Rated Wattage) July 04, 2014 01:08PM |
Registered: 9 years ago Posts: 21 |