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Old 01-22-2010, 06:20 PM   #1
crazydrummerdude OP
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I'm taking machining/casting classes

I figure I'll keep this thread rolling for at least this semester and next. I'll bring a camera when I can remember.

Back story: I really wanted to take Manufacturing Technology because you get to run mills and lathes, and I already really like doing that. But, it wouldn't count towards my degree since it's not in my field (Aerospace Engineering). Then, I got to thinking and looking through the catalog. My senior year's pretty empty---what's this? Metals Casting is a class? Oh, I'm in. I figure I'll get a 3rd minor. So, 'Materials', it is. 15 credit hours. 9 hours of which already count towards my degree. So, Manufacturing Technology is in the bag, and Metals Casting will happen next semester. There are 16 weeks total per semester.

Week 1: So far, in Manufacturing Technology, I've learned quite a bit. My peers are all annoying freshmen who have to be there because the class is a requirement for them, but I'm loving it. Turns out the first couple of weeks the class will be casting (not a bad surprise). Then, on to the machining.

Week 2: We packed green sand into a cope/drag flask and beat the crap out of it on a jolt squeeze machine. We poured aluminum down in and by the time the lab was over, we had our own little Missouri paperweights. Woo hoo!

As we left, we were given a piece of ~ 2.5" x 2.5" x 4" styrofoam to cut a shape out of for the next lab. (Don't you love arts 'n crafts?) The only rule: No drug paraphernalia, weapons, or body parts. Damn. For the life of me, I can't think of anything cool to cast that I couldn't easily just machine on my own lathe at home.

Any tips on what I should make out of the block?


Updates/pics will come as the class progresses.
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Old 01-22-2010, 06:25 PM   #2
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Old 01-22-2010, 06:30 PM   #3
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Old 01-22-2010, 06:34 PM   #4
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A bigger version of one of the Monopoly pieces.
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Old 01-22-2010, 06:48 PM   #5
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belt buckle
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Old 01-22-2010, 07:02 PM   #6
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Old 01-22-2010, 07:03 PM   #7
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An aircooled motorcycle cylinder block. Maybe a stylized brake caliper, something absurd looking with a dozen pistons. An NR750 style oval piston.
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Old 01-23-2010, 01:45 PM   #8
crazydrummerdude OP
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Quote:
Originally Posted by Chobro
belt buckle
A lot of people are doing that.

Quote:
Originally Posted by PoundSand
who cares if it doesn't count towards your major?

(i graduated in ae w/ 178 credits)
Well, as I said, this is my 3rd minor, in addition to a few certificates. So, I don't really care.

Quote:
Originally Posted by P B G
Nothing saying you couldn't machine your casting as well.
True.

Quote:
Originally Posted by Anorak
An aircooled motorcycle cylinder block. Maybe a stylized brake caliper, something absurd looking with a dozen pistons. An NR750 style oval piston.
I was strongly considering this.. but this sytrofoam is pretty damn coarse. Can't get any detail out of it. I just started drinking and messing around with it last night. I ended up carving a... goblet... the size of a double shot glass. I don't know why.

My only concern is that the sand won't fill it properly. If it messes up, I'll make a mini motorcycle engine or something.
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Old 01-23-2010, 04:35 PM   #9
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Quote:
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an ADV belt buckle
figst.
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Old 01-23-2010, 12:31 AM   #10
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Quote:
Originally Posted by crazydrummerdude
Back story: I really wanted to take Manufacturing Technology because you get to run mills and lathes, and I already really like doing that. But, it wouldn't count towards my degree since it's not in my field (Aerospace Engineering).
who cares if it doesn't count towards your major?

(i graduated in ae w/ 178 credits)
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Old 01-23-2010, 01:10 AM   #11
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Old 01-24-2010, 02:28 PM   #12
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Old 02-21-2010, 10:32 AM   #13
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Quote:
Originally Posted by Donkey Hotey


Is that a weapon?
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Old 02-21-2010, 01:11 PM   #14
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I figured it was one piece, it's aerospace related (his major) and it doesn't have any vertical surfaces to contend with. As aircraft go, that's probably the easiest one to cast out of something. Plus, it isn't something he could easily machine unless he had a CNC (one of his criterion). It's also fairly constant in cross section so shrinkage and cooling problems should be minimal

With a piece of foam and some pictures, you could carve up a plug that would look pretty close and make a casting out of it. It could be hand finished against a belt sander and the flaws would not be so obvious in the final product (it's already kind of a blob shape).

He went for a shot glass instead. At least we know he was PUI when he came up with his final idea.
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Old 02-21-2010, 02:52 PM   #15
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Quote:
Originally Posted by Donkey Hotey
I figured it was one piece, it's aerospace related (his major) and it doesn't have any vertical surfaces to contend with. As aircraft go, that's probably the easiest one to cast out of something. Plus, it isn't something he could easily machine unless he had a CNC (one of his criterion). It's also fairly constant in cross section so shrinkage and cooling problems should be minimal

With a piece of foam and some pictures, you could carve up a plug that would look pretty close and make a casting out of it. It could be hand finished against a belt sander and the flaws would not be so obvious in the final product (it's already kind of a blob shape).

He went for a shot glass instead. At least we know he was PUI when he came up with his final idea.


Hey now, next semester, I'll be taking an all casting class. I'm not done with this minor yet! We'll probably have the opportunity to make another styrofoam mold. I was thinking maybe a skull shifter knob for my Model A.



But, we'll see..
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