[Lab] Fire the laser!

[Paul & Andrea Mumby]

I could have swore I saw somewhere someone successfully cut PCBs with a
laser (not doing the cut the resist and chemically etch thing). But I might
be wrong...

If that's the case, the easy way is still either toner transfer, or job the
boards out to Seeedstudio.

- Paul

On Mon, Aug 29, 2011 at 6:27 PM, <bentfork at gmail.com> wrote:

> 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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>>>>>
>>>>
>>>
>>
>
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