MOSFET DIY NINJA LEVEL

MOSFET DIY NINJA LEVEL

cults3d

As a result of the elevated currents which have to be managed to warm the bed, especially while working with materials such as ABS, it is highly recommendable to have a device at our disposal in order to handle all that stream and release our MB of that work. To do so, in the market ,we can find relays (mechanical and SSR), or what is known as MOSFET electronic circuit , since it is its main element . If we focus on this second option, I suggest this mosfet I have made by taking advantage and recycling material which I already owned, and whose cost has been therefore zero for me. In any case this material may end up being really interesting and economical when working by yourself at home. The mosfet I used, which as I have just said, is one that I had in my components drawer, although it could easily be another one, is a IRPF054, capable of handling 64A at 100 ° C continuously. The chosen transistor for the inverter is a BC547, a reference in signal amplification, so you shouldn´t find it difficult to locate. This circuit, unlike the ones designed for commercial purposes, does require that we identify, in our card printer, the positive and negative connections to the "hot bed" , as we will need to establish the connection to the negative pin in order to get the control signal. This doesn´t happen in the commercial ones as they use a bridge rectifier, but as I have explained, the design is the result of using material I already kept in my drawer, and the bridges I had resulted to be too large. As for the rest of the procedure, not much complication, just plug it according to the described electrical scheme and you’ll get it ready to work. For those of you who want to make their PCB, I have made it available in Autodesk CIRCUITS: https://circuits.io/circuits/3670338-mosfet-hot-bed/embed#schematic If you make it, please share your photos :-). Debido a las elevadas intensidades de corriente que es necesario manejar para calentar la cama, sobre todo cuando trabajamos con materiales como el ABS, resulta interesante disponer de un dispositivo que manejetoda esa corriente y que libere anuestra MB de ese trabajo. Para eso disponemos en el mercado de reles (mecánicos y SSR), o de ciruitos electrónicos denominados MOSFET, por ser éste su elemento protagonista. Centrándonos en esta segunda opción, os propongo este mosfet que he realizando aprovechando y reciclando material que tenía disponible, y cuyo coste en mi caso ha sido cero, pero que en cualquier caso puede ser realmente económico e interesante para realizar uno mismo en casa. El mosfet empleado, que como he dicho, es uno que tenía disponible en mi cajón de componentes, pero que perfectamente puede ser cualquier otro, es un IRPF054, capaz de manejar de continuo 64A a 100ºC. El transistor empleado en el inversor es un BC547, un clásico en amplificación de señal, por lo que no debéis tener problema en localizarlo. Este circuito, a diferencia de los comerciales, sí necesita que identifiquemos en la placa de nuestra impresora el positivo y negativo de las conexiones a la "hot bed" ya que necesitaremos conectarnos al pin negativo para tomar la señal de control. En los comerciales esto no ocurre porque utilizan un puente rectificador, pero como he dicho, el diseño es aprovechando lo que tengo en el cajón, y los puentes que tenía son demasiado grandes. Por lo demás, poca complicación, simplemente conectarlo según el esquema eléctrico propuesto y a funcionar. Para quien se quiera hacer su PCB, lo tengo disponible en AUTODESK CIRCUITS: Esquema:https://circuits.io/circuits/3670338-mosfet-hot-bed/embed#schematic PCB:https://circuits.io/circuits/3670338-mosfet-hot-bed/embed#pcb Si lo haces, por favor, comparte tus fotos. Gracias.

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