[Lab] Laser cutter precision

[Jean-Marc LeBlanc]

how could I convert a cad file to something the laser cutter can use?

Jean-Marc Le Blanc
---

"Do you pine for the nice days of Minix-1.1, when men were men and
wrote their own device drivers?" Linus Torvalds




On Thu, Oct 13, 2011 at 8:58 PM, Jean-Marc LeBlanc
<jeanmarc.leblanc at gmail.com> wrote:
> I was thinking of using polyimide sheet but I can't find any one that
> sells it at a reasonable price
>
> Jean-Marc Le Blanc
> ---
>
> "Do you pine for the nice days of Minix-1.1, when men were men and
> wrote their own device drivers?" Linus Torvalds
>
>
>
>
> On Thu, Oct 13, 2011 at 4:40 PM, Michael Ayukawa <mike.ayukawa at gmail.com> wrote:
>> Something like this may work:
>> http://www.laserbits.com/images/LaserResources/TechTipsandFeatureStories/TECHTIP_PDFs/TECHTIP_LaserFoil.pdf
>> polyester laminate called Laser Foil
>> May work well enough as a mask/stencil for etching.  Depends a lot on the
>> interface properties w.r.t. the etchant.
>> /Mike
>> On 2011-10-13, at 4:29 PM, bentfork at gmail.com wrote:
>>
>> I've tried making stencils and I haven't had any luck, yet.  The
>> problem is finding a suitable material from which to make stencils.
>>
>> Commercial ones are made of stainless steel... that isn't going to be
>> cut by the laser we have.
>>
>>
>> On 13 October 2011 16:06, Darcy Whyte <darcy at siteware.com> wrote:
>>
>> It's trial and error. The machine is pretty accurate.
>>
>> I'd just be concerned if the material (which I dont' know what it is) gives
>>
>> of gas that's bad for humans or bad for the machine.
>>
>> Send the material description technical at artengine.ca to see if Britta
>>
>> already has that material on the green list or not.
>>
>> On Thu, Oct 13, 2011 at 2:18 PM, Jean-Marc LeBlanc
>>
>> <jeanmarc.leblanc at gmail.com> wrote:
>>
>> hey,
>>
>> I was wondering if the lab laser cutter was good enough to make a
>>
>> stencil for bga/LGA chips.
>>
>> the pads at the botom are 0.4 millimeteres I think
>>
>> Jean-Marc Le Blanc
>>
>> ---
>>
>> "Do you pine for the nice days of Minix-1.1, when men were men and
>>
>> wrote their own device drivers?" Linus Torvalds
>>
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>