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Wire size for my Mendel Prusa

Posted by scubi

scubi

Wire size for my Mendel Prusa
February 02, 2013 05:49AM

Registered: 11 years ago
Posts: 154

Hi
Please can you tell me what wire spec I buy for the following :

1. Nema 17 motor
2. Heater Bed
3. Thermistor and Heat Resistor

Do it create a problem if the wire is incorrect ?

Thanks
Vaughan

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nophead

Re: Wire size for my Mendel Prusa
February 02, 2013 06:30AM

Admin
Registered: 17 years ago
Posts: 7,879

I use 7/0.2 for motors.
32/0.2 for heated bed plus ribbon cable for the bit that needs to bend.
16/0.2 for hot ends.

If you use wire that is too thin it will get hot. For example if you used 7/0.2 for a heated bed it would catch fire.

[www.hydraraptor.blogspot.com]

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scubi

Re: Wire size for my Mendel Prusa
February 02, 2013 08:31AM

Registered: 11 years ago
Posts: 154

Hi Nophead, thanks for the help.
The ribbon cable is that a standard cable that I can ask for or does it have special spec. My luck I have my first print and destroy everything with the wrong spec cables.
Thanks

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nophead

Re: Wire size for my Mendel Prusa
February 02, 2013 10:39AM

Admin
Registered: 17 years ago
Posts: 7,879

Yes standard ribbon cable. I use 26 way for the bed. Two of those are the thermistor and then 12 for each of the bed connections.