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  1. 07-04-2014, 07:54 AM #9
    brainscan
    brainscan is offline
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    Jun 2014
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    37
    I would just like to say to anyone about to buy or build RAMPS 1.3/1.4 that the MOSFET for the heated bed has been poorly chosen. Best thing you can do is drop one of these in it's place IRLB3813PBF MOSFET, N CH, 30V, 190A, TO220. If you plan to have a heated bed you should definitely do this or have a serious heatsink and fan. Even with decent cooling the standard one will fail quickly due to heat stress. The replacement barely gets warm with or without a heatsink.
    Last edited by brainscan; 07-04-2014 at 04:07 PM. Reason: Spelling
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