Thursday, April 2, 2009

UNMC Workshop

Lately, I am so busy with all the uni works. Mainly focusing on the Air Motor Fabrication which lasts for 2 weeks. It was my first group project where we designed an Air Motor last semester and now we're gonna make it!

The other classmates already learn how to operate most of the machines in the workshop during Year 1. Since I'm a direct Year 2 entry student (same excuse as always :P), I have to learn it from zero!

This is our workshop (stay calm, engineers from Nilai UC XD):

The two major machines we gonna use are Turning Machine and Milling Machine. Turning Machine is better in dealing with round things. Milling Machine takes care of the surface groove and non-round surface (since we have no choice).

A Turning Machine and a Milling Machine:

I'm better in using the Turning Machine thanks to the "passionate guidance" by brother Jack Ng Ming Kiat! I end up working on our parts using the Turning Machine for 4 days.

First, fix the blade/cutter in the Turning Machine (the one below is used for radius reduction):


Then, clamp the material (we're using Teflon) into the Turning Machine:

Start the Turning Machine and slowly move the cutter near the material to cut the outer surface. Normally we cut 0.5 mm by 0.5 mm radially, but if I gonna cut a large ammount of radius, I just go 3 mm by 3 mm *hehe*.



This machine shows how much you cut in X and Y axis, sensitivity is 0.001mm!


Of course, we still need to double check the dimension with caliper:

The Turning Machine can be used for drilling too. Just fix a drill with the desired diameter and slowly extent the drill head into the material while the Turning Machine is activated. By using Turning Machine to drill, it'll be very precise into the centre.


Hmm... about the Milling Machine, I'm not very familiar with it, but thanks Sue Lynn for teaching me how to use it. Basically, by using end mill as the tool, we can flattened surfaces or make grooves and pockets. Changing the tool into a drill will make it possible to drill a hole on any surface.



This is the piston made:

We also got a CNC (Computational Numerical Control) Machine in our workshop. However, I never see anyone operate this machine, it's still functioning I guess.


So far... we worked for almost 1 week+ and these are the parts that we completed. Hope that we can finish in time, but I don't think it'll really work :P.


It is writen in a hymn of praise to The LORD (Jeremiah 51:15) "He made the earth by his power, and he preserves it by his wisdom. He has streatched out the heavens by his understanding." From this project, I learnt that making something is not easy, but The LORD has made us in such a marvelous way. Only through faith we found the love of The LORD upon us, His wonderful creation. Pray that Chris will recover from his sickness soon, may God lay Your healing hands upon him. Pray that the ISM conference on Saturday will be good and the participants will return with a strengthen heart. In Jesus name I pray, Amen.

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