muBlog

Oh RAMPS!

A RAMPS 1.4 board viewed from the top

The RepRap Arduino Mega Pololu Shield (RAMPS) 1.4 Remains one the most popular low-cost 3D printer controller boards. I had bought an entire kit recently from Amazon for 39.99 USD, which contained the RAMPs 1.4, a RepRapDiscount Full Graphics LCD, clone A4988 drivers (with 0.100 ohm current sense resistors), and a clone Arduino Mega 2650.

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3Dconnexion Patent Expiration

A picture of a SpaceMouse 6 degree of freedom knob

One of the original patents for 3Dconnextion’s SpaceMouse series of products has expired. This one covers one way to create their optoelectronic mechanism to create a brilliant 6DOF (Degrees Of Freedom) knob.

Here’s a copy on Google Patents

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Shamrock Stuff

3 Dell PowerEdge r710 servers, laid out open on the floor

Right now Shamrock Cluster, my own personal “cloud” service, is completely offline. It’s pretty obvious why though, right? All the hardware is open on the floor! There’s a good reason for this though, let me preview a bit of what I’m working on:

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Hello, World!

A sunrise: Symbolizing a new beginning?

Hello, World!

Hi! I’m Brian Lu, I’m a student attending Purdue University studying in their First-Year Engineering program, and I’m aiming to transfer into Computer Engineering.

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