[KwartzLab] Laser Party! Tues, Jan 10

[doug moen]

That should work. Let's try it.

On 9 January 2012 16:00, Chris Bruner <cbruner at quadro.net> wrote:
> So, what you are saying is that using a sharpie or something coloured, on
> aluminum will allow you to etch the sharpie away and that process marks the
> aluminum?
>
> On 1/9/2012 3:48 PM, Jeff Schmidt wrote:
>
> Good points!
>
> I have etched aluminum on a laser before, at Waterloo Engraving.  And by
> etch, I mean mark the anodized layer.  In that case, I had a matte black
> anodized case which was etched with a raster image.  The black anodizing
> turned nearly white, while the smoothness of the metal was unaffected.
>
> This time around I have a red and a blue anodized piece.  They are slightly
> more reflective than the black.  I am hoping that they will "etch" white as
> well, though.
>
> Once the etching is done I'll drill the holes in the panel with a drill
> press.
>
> - Jeff
>
> ________________________________
> From: Cedric Puddy <cedric at ccjclearline.com>
> To: Jeff Schmidt <digitalfalcon at rogers.com>; KwartzLab Public Discussion
> List <discuss at kwartzlab.ca>
> Sent: Monday, January 9, 2012 2:35:05 PM
> Subject: Re: [KwartzLab] Laser Party! Tues, Jan 10
>
> It's going to be interesting to see how well it does on aluminum; I was
> talking with James, and he thinks it will just ablate the aluminum oxide
> layer, and will not be successful in marking the underlying pure aluminum.
> I'd be happy to try just in the name of "science" (wherein "science" is a
> word we use to refer to the act of "checking to see if James is right
> again").
>
> James went on to say that there are "marking compounds", which small etching
> shops and whatnot use, in which they paint the compound onto the area to be
> laser etched.  My assumption is that the compound comprises a ready supply
> of atoms that require a relatively modest amount of power to drive into a
> chemical bond with the underlying metal, so when you hit them with a
> relatively small laser, you get an effective permanent chemically bonded
> mark.
>
> Interestingly enough, apparently Yag lasers are far more effective on metal
> than CO2 (we have a CO2 at the lab), but are less popular on account of
> being completely ineffective against organics (such as paper, leather, wood,
> etc).  Word has it that there are dual tube units in the world that have
> both a CO2 and Yag source able to supply the beam line, and able to be
> electronically switched.
>
> -Cedric
>
>
> On 2012-01-09, at 2:13 PM, Jeff Schmidt wrote:
>
>> Cool, thanks.
>>
>> In the mean time, do any members want to laser my panels for me?  I'll buy
>> you some pizza at Pepi's in exchange.  :)
>>
>> - Jeff
>>
>> From: Darcy Casselman <dscassel at gmail.com>
>> To: Jeff Schmidt <digitalfalcon at rogers.com>; KwartzLab Public Discussion
>> List <discuss at kwartzlab.ca>
>> Sent: Monday, January 9, 2012 1:27:05 PM
>> Subject: Re: [KwartzLab] Laser Party! Tues, Jan 10
>>
>> We don't know yet.  Non-member laser use policy is up for discussion
>> at the next board meeting.  We'll let you know!
>>
>> Darcy.
>>
>> On Mon, Jan 9, 2012 at 11:57 AM, Jeff Schmidt <digitalfalcon at rogers.com>
>> wrote:
>> > I'm sad I won't be able to attend.  I've got some aluminum panels that
>> > I'd
>> > love to have engraved.  Perhaps next week!  What's the cost to use it
>> > for
>> > non-members?
>> >
>> > - Jeff
>> >
>> > ________________________________
>> > From: Darcy Casselman <dscassel at gmail.com>
>> > To: KwartzLab Public Discussion List <discuss at kwartzlab.ca>
>> > Sent: Monday, January 9, 2012 10:49:03 AM
>> > Subject: [KwartzLab] Laser Party! Tues, Jan 10
>> >
>> > That's tomorrow,
>> >
>> > Sorry for the short notice. It's been discussed in person, but not so
>> > much
>> > on the list.
>> >
>> > Our official laser cutter ribbon cutting will happen tomorrow night
>> > during
>> > TON.  We'll have talks and demos and it'll be awesome.
>> >
>> > (It is my hope that we can get the laser cutter to cut its own ribbon,
>> > but
>> > as I'm not a trained laser cutter operator, I can't make that
>> > promise...)
>> >
>> > Darcy.
>> >
>> > _______________________________________________
>> > Discuss mailing list
>> > Discuss at kwartzlab.ca
>> > http://kwartzlab.ca/mailman/listinfo/discuss_kwartzlab.ca
>> >
>> >
>> >
>> > _______________________________________________
>> > Discuss mailing list
>> > Discuss at kwartzlab.ca
>> > http://kwartzlab.ca/mailman/listinfo/discuss_kwartzlab.ca
>> >
>>
>>
>> _______________________________________________
>> Discuss mailing list
>> Discuss at kwartzlab.ca
>> http://kwartzlab.ca/mailman/listinfo/discuss_kwartzlab.ca
>
> |  CCj/ClearLine - Unix/NT Administration and TCP/IP Network Services
> |  118 Louisa Street, Kitchener, Ontario, N2H 5M3, 519-489-0478
> \________________________________________________________
>   Cedric Puddy, IS Director            cedric at thinkers.org
>     PGP Key Available at:              http://www.thinkers.org/cedric
>
>
>
>
>
>
> _______________________________________________
> Discuss mailing list
> Discuss at kwartzlab.ca
> http://kwartzlab.ca/mailman/listinfo/discuss_kwartzlab.ca
>
>
>
> --
> Chris Bruner
>
>
> _______________________________________________
> Discuss mailing list
> Discuss at kwartzlab.ca
> http://kwartzlab.ca/mailman/listinfo/discuss_kwartzlab.ca
>