[ARC5] Chassis nibbler

[Scott Robinson]

To guard against crack propagation, pre-drill holes (maybe 5/32") at the 
corners of the intended hole and then nibbble towards them. Any crack 
should stop at the hole.

Sharp corners cause stress concentrations.

/scott

On 2/2/15 1:58 PM, Bill Cromwell wrote:
> On 02/02/2015 04:50 PM, AKLDGUY . wrote:
>> Thanks Dennis but the query related specifically to DIE-CAST aluminium.
>> I've used my nibbler on countless ordinary aluminium sheet but never
>> on DC.
>>
>> 73 de Neil ZL1ANM
>>
>> On Tue, Feb 3, 2015 at 10:45 AM, Dennis Monticelli <
>> dennis.monticelli at gmail.com> wrote:
>>
>>
> Hi Neil,
>
> I was worried about breaking the tool or my hand with that die cast
> aluminium. I resorted to small files (or larger ones for roughing out).
> The files I had are called "jeweler's files" and now I can't find mine.
> Let us know if you have any success doing it with the nibbler.
>
> 73,
>
> Bill  KU8H
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