[Amps] Workshop Danger

[Carl]

I use a quality bi-metal hole saw, not some Harbor Freight junk, for meter 
holes.
Even so, nothing lasts forever and many just cant seem to throw a worn out 
tool away.

Carl
KM1H


----- Original Message ----- 
From: "Manfred Mornhinweg" <manfred at ludens.cl>
To: <amps at contesting.com>
Sent: Friday, September 13, 2013 1:37 PM
Subject: Re: [Amps] Workshop Danger


> Like many homebrewers, I cut my panel holes with a jigsaw, and finish them 
> with files. The advantage: Essentially any shape and size is possible. 
> Disadvantage: It takes a bit of practice to get nice, clean, good-looking 
> results.
>
> It's a good idea to use panels of a reasonable thickness. There is just no 
> point in making them as thick as an armor plate! For small boxes I use 1mm 
> aluminium sheet, for bigger ones slightly thicker sheet, and only for the 
> biggest boxes holding the heaviest sort of components I use 3mm thick 
> aluminium.
>
> On the other hand, I have used the jigsaw+file method even in 8mm thick 
> steel, when building machinery! That takes some patience, though, and 
> might wear out one jigsaw blade per hole. But that's still cheaper than 
> having the work done by others.
>
> Shop safety is not to be taken lightly. It pays to think in advance what 
> can go wrong, and prepare for it. For example, a jigsaw blade can shatter 
> and fly away, and small metal chips will certainly fly around. So, eye 
> protection is a good idea. I also use ear defenders, as I like listening 
> to music and don't want to go deaf. And un-deburred metal edges can cut 
> fingers... but that's pretty obvious! Come on, we are no kindergarten 
> anymore! ;-)
>
> Manfred
>
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