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Unread 24-06-2002, 00:47
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Re: Can your team use the machines?

Posted by ChrisH at 2/13/2001 6:21 PM EST


Engineer on team #330, Beach 'Bots, from Hope Chapel Academy and NASA JPL, J & F Machine, Raytheon, et al.


In Reply to: Re: Can your team use the machines?
Posted by Kevin Sevcik on 2/13/2001 11:50 AM EST:



: Our wrokshop sponsor, Brown & Root has become more and more strict about who can use the big machines. First year, just about anyone could use them. Of course, the we were dulling and clogging bits + tools like crazy. Second year, only veterans could use them, until someone left a chuck key in a lathe. Twice.
: Now we've got spring loaded chuck keys, and only a specific few are allowed to machine things or supervise others machining things. Of course some know-it-alls still try to do tings themselves. Last week one of them managed to snap a cut-off tool in half on the lathe. While they were machining delrin.
: So in conclusion, we've been put under progressively more strict rules every year, and I think it's really a good thing. It protects the kids and the tools, and encourages people to draw and dimension things instead of making things up as they go.

Anybody that could snap a cutoff tool machining Delrin needs to be kept away from machine tools.

While I agree with drawing things first, it is also good to have hands on experience. The single most valuable class I took in college in terms of value/awarded credit was a practical shop class I got 1 credit for.

On our team the machine tools are about 30 min. away from our build room. So students go over there to work in small groups. Like 2 at a time. They are supervised closely while running the mill. Less closely on the cut-off saw as most are familiar with band saws already and it is a big ugly thing that seems to scream "Be Careful". Nobody gets to work the lathe or CNC machines.

Student personality has a big impact on who goes over to the shop in the first place. If we get worried when they pick up a power drill then they probably aren't going. BTW this applies to adults too. But we don't have any of those on our team at the moment.

There is one guy I work with though who we tell "put that down before you hurt somebody" every time he picks up a tool. He's not stupid, just not very co-ordinated. Like if he's using a hammer he can't hit the nail, so he usually hits something else. Good thing he's an engineer and not a lab tech...

Chris Husmann, PE and part time lab tech
Team 330 the Beach'Bots



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