[chbot] chemical milling

[Mark Atherton]

ERT

On 7/12/2020 12:05 PM, ceo at andygardner.com wrote:
> 
> Are you milling a channel in the copper or want to eat right through to 
> the other side?
> 
> On 7/12/20 10:43 am, Mark Atherton wrote:
>> Thanks Andrew,
>>
>> The hydrogen peroxide/hydrochloric acid solution looks most 
>> interesting; never heard of it before.
>>
>> My largest complaint back-in-the-day when using Ferric Chloride was 
>> the indelible orange-stain that the spills caused.
>>
>> Anyway, I am looking into chemical-milling some thin copper sheet, and 
>> you may have solved one of the issues.
>>
>> Just wondering about spraying a thin layer of paint on the copper. 
>> Removing the 'resist' using a laser cutter, then etching the remaining 
>> piece.
>>
>> Anyone have any experience with a similar process ??
>>
>> -Mark
> 
> 
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