extruder fault problem and upgrade to 24v.
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@Dave-Parry
can you link the heater? -
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@Dave-Parry said in extruder fault problem and upgrade to 24v.:
Looking at similar square beds they seem to be about 200w.
yeah that sound like a good guesstimate
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so say bed = 9 A,
v6 40w = 1.6A
nema 17 Stepper motors = 1.6A x 4, 6.4A
Thats about 17A, so I think I need 20A. does that sound about right?
I know the motors wont draw that much in realitity, but I think 24v 15 A is a bit low. -
see
https://duet3d.dozuki.com/Wiki/Choosing_the_power_supplyyou need to calculate the nema differently
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So does that mean 2.8v x 1.68A = 4.5A per motor?
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My Bad, just read again and its 1,68A + 50%= 2.5A x 4 = 10A
So thats 20 A + other bits.
So probably 25A or 30A is going to be the required current.
Thats a lot, no wonder 12v 15A is having problems. -
Definitely consider a meanwell supply from a reputable supplier like digikey or mouser.
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Next problem is a power connector. 25 amps is a lot for a connector to handle.
My present one is a 8 way one, 3 for +, 3 for -, and 2 I think are for power switch.
Not sure what type they are but I think they are molex ones. What type do other machines use? -
@Dave-Parry said in extruder fault problem and upgrade to 24v.:
Next problem is a power connector. 25 amps is a lot for a connector to handle.
My present one is a 8 way oneI'm not sure what you're referring to? Photo?
