[Lab] Fire the laser!

[bentfork at gmail.com]

If you want to push the power of the laser I think one would need to do
something wacky , like sending pure oxygen in to get the heat high enough to
start burning metal.

There is a group that has made a modification to the air assist system.
They channel the air and the laser through a gap to try and get more cutting
power.

http://www.factengineering.com/turbo.php

I haven't seen a need myself for this, but I may look into it in the future
If I find I'm doing a lot of cutting.  It does open the road to potential
hacking in the future, definitely if you start mixing gases.


On 29 August 2011 17:58, Darcy Whyte <darcy at siteware.com> wrote:

>
> That's what I thought....
>
> I think the YAG lasers can cut metals but those seem a little more
> expensive to say the least.
>
>
> On Mon, Aug 29, 2011 at 5:56 PM, <bentfork at gmail.com> wrote:
>
>> The laser unfortunately  can't cut through metal.  The best one can do is
>> to coat the board in black spraypaint, remove it with the laser and use it
>> as a resist.
>>
>> http://blog.makezine.com/archive/2007/01/how-to-use-a-laser-to-etc.html
>>
>>
>> On 29 August 2011 14:09, Paul & Andrea Mumby <themumbys at gmail.com> wrote:
>>
>>> We should try some copper clad board to see if we can cut a PCB with the
>>> laser... I've seen some people with fantastic success, and that laser is so
>>> fine that we could get some really accurate PCB traces with it.
>>>
>>> - Paul
>>>
>>>
>>> On Fri, Aug 26, 2011 at 9:59 AM, <bentfork at gmail.com> wrote:
>>>
>>>> Hehe.  Good idea.
>>>>
>>>> It isn't that small yet.  Using three credit cards I can build two
>>>> trebuchettes.  It is based on these guys design, which uses no glue or tape
>>>> to hold the whole thing together:
>>>>
>>>> http://www.siegetoys.com/design.html
>>>>
>>>>
>>>>
>>>>
>>>> On 25 August 2011 18:47, jim kiskis <jim.kiskis at gmail.com> wrote:
>>>>
>>>>> well if you get your credit card size trebuchet working will it fold
>>>>> up into one and you can use it ? :)be intereesting going to the store
>>>>> and say this is a trebuchet card and do you take them and if they
>>>>> don't then you can lay siege to them :)
>>>>>
>>>>>
>>>>> On Thu, Aug 25, 2011 at 12:25 AM,  <bentfork at gmail.com> wrote:
>>>>> > Good to see its all getting put together.  I should finish off my
>>>>> business
>>>>> > card sized trebuchet...
>>>>> >
>>>>> > On 24 August 2011 20:58, Darcy Whyte <darcy at siteware.com> wrote:
>>>>> >>
>>>>> >> Here are some pictures and video of the first laser cuts at
>>>>> ArtEngine.
>>>>> >> http://mambohead.com/2011/08/fire-the-laser/
>>>>> >>
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>>>>
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>
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