2014年9月20日 星期六

生活 plus 3DP (Printer) -- 耳機收納


木工作品(5):用餘料做淺盒 & 筆筒

最近把餘料整理了一下,有不少小塊小塊的東西,所以就把它們組合在一起做些盒子。順道再練練做榫頭的基本功。


第一個是之前用胡桃木做夜燈的餘料,其中有一片是邊料,有缺陷。所以我剛把好他當作淺盒的靠背,變成其花樣。另一塊中間已被挖空,就用那挖空來做前板的花樣。最後就湊成一組淺盒了!

2014年9月7日 星期日

量測原理與機械工程實驗 (as a laboratory assistant)

Measurement and Mechanical Engineering Laboratory is a required course for junior students in the department of mechanical engineering at National Taiwan University. This course consists of miscellaneous topics of different fields such as material science, solid mechanics, thermal science, control, and fluid mechanics (see Fig. 1). Students can access equipment (or even build one on their own) which measures/demonstrates displacement, velocity, acceleration, force, torque, pressure, temperature, vibration, and other meaningful physical quantities.

開關參數設計 Analysis of Rocker switch's Parameters

搖擺式開關在生活幾乎無所不在了,小弟在碩班的時期曾經跟崧騰產學合作進行開關設計參數的探討。主要包括兩個內容:(1)尺寸對動態響應的影響,(2)電阻影響溫升的探討。

Rocker switches are common electro-mechanical components used to close or open electrical connections. Solteam Electronics Corporatoin, a famous electronics manufacturer in Taiwan, sought cooperation with mechanical engineering students at National Taiwan University in order to get more insights of the design parameters of a typical rocker switch MR22 (see Fig. 1). This project mainly focused on two subjects, the first was the effects of geometric parameters on mechanical performance indices like maximum force required and stroke length, the second one was the validation of a simplified mathematical model predicting electrical contact resistance and the equilibrium temperature.

Fig. 1 Partially sectioned model of rocker switch MR22