The MOSFET Upgrade.

Monoprice Maker Select V2 with upgrades.

In January of 2016 I bought a 3D printer to start my journey into that maker space. I went with a Monoprice Maker Select V2. After doing some research it seemed like a solid machine at a good price with a large online community I could learn from.

One of the things I thought was cool was the all the upgrades you could print to make the machine a little better. The idea of using the printer to make the printer better was really exciting. I’ve added a fair number of things to it over the years. Z-axis supports, fan guards, drag chain, bed stabilizers, and an enclosure. Two major upgrades that you can not print are the MOSFET and an all metal hot end. I got both of these upgrades for Christmas LAST year. Today I’m going to do the MOSFET upgrade!

So what is a MOSFET and why do I need it? It stands for metal-oxide-semiconductor field-effect transistor. The original board that comes with the printer is capable of pulling more electricity than the connectors can supply. This can result in the board shorting out, melting, or even catching fire! The MOSFET is installed between the main board and the power supply and allows the proper amount of electricity to be pulled safely.

The MOSFET mounted on a 3D printed bracket.
The inside of my printer.
MOSFET installed!

Now that this is upgraded, I can safely operate at higher temperatures. Which means experimenting with ABS and Wood filaments! That’s right WOOD! Add Harry Potter Wands to the project list!

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