[TriEmbed] Large Format Laser Cutting Needed

[Adam Haile]

It's an option, white is preferred so that I loose as little light as
possible.
I just found a source of 32x40" sheets of foam core in white which I think
may work. 10 sheets for $40 and I need 4 at most. I realized that I could
probably design a 3D printed jig that would take care of the slot size and
spacing for me... I always make a jig if possible :)
My only complaint with the foam core method is that at 1/8" thick, there's
going to be more of a dark border around each pixel than I'd like, but I
could probably mitigate that by leaving a small gap between the top of the
dividers and the diffuser. There would then be a soft edge between each
pixel but they would still be basically square. I'll have to play with it.

On Sat, Jun 6, 2015 at 10:08 PM, The MacDougals <paulmacd at acm.org> wrote:

> Is corrugated cardboard an option?  Does it need to be white to reflect
> the light? Paint?
>
> A long time ago, I knew of a source of 5x8 sheets of the stuff at a
> reasonable price.
>
>
>
> ---> Paul
>
>
>
>
>
> *From:* adammhaile at gmail.com [mailto:adammhaile at gmail.com] *On Behalf Of *Adam
> Haile
> *Sent:* Saturday, June 06, 2015 9:18 PM
> *To:* Glen Smith
> *Cc:* Jon Wolfe; triembed at triembed.org; Shane Trent; The MacDougals
>
> *Subject:* Re: [TriEmbed] Large Format Laser Cutting Needed
>
>
>
> Hmm...both interesting options. I'll have to look into it... had not
> thought of either. Been looking into foam core, but having trouble finding
> anything bigger than 30" (I need 40", 1m) at least... even that seems to
> add up quick when I can find it :P
>
>
>
> On Sat, Jun 6, 2015 at 1:05 PM, Glen Smith <mrglenasmith at gmail.com> wrote:
>
> Adam,
>
> Have you looked into getting them die cut? I don't know what the setup
> costs would be.
>
> The other thought I had was making a negative mold around 50x50 cm, then
> casting them with something. Even using a can of Great Stuff spray foam
> might work if you can figure out a mold release method. Lowes has 4'x8'x2"
> thick insulating foam board for about $35 which could be used to make the
> mold by cutting appropriately angled slots centered every 40mm in both the
> X and Y. I think this method would be more sturdy than the paper/cardstock,
> and depending on how you assemble it, might be able to be dis-assembled for
> transport.
>
> Glen
>
>
>
> On Sat, Jun 6, 2015, 12:43 PM Adam Haile <email at adamhaile.net> wrote:
>
> John,
> I need 50 of the file attached file from the original message on white
> cardstock. Pololu quoted $450. Think I may have to go a diff route :P
>
> On Jun 6, 2015 12:26 PM, "Jon Wolfe" <jonjwolfe at anibit.com> wrote:
>
> Thanks Paul!
>
> Adam and I discussed this earlier. My cutting area is 20x12. I can also
> remove the bottom to fit larger pieces, but I can still only cut within the
> cutting area.
>
> My rates are a little bit lower than Pololu's, but depending on the
> complexity, the price can still add up. The laser tube has a limited life,
> like a lightbulb, so that is why rates are base on how much work the laser
> has to do.
>
> --Jon
>
>
>
> On 2015-06-05 20:56, The MacDougals via TriEmbed wrote:
>
> Anibit.com has a laser cutting service.
>
> https://anibit.com/content/laser-cutting-services
>
>
>
> You could probably get free delivery to Centennial Campus on the second
> Monday of the month J
>
>
>
> ---> Paul
>
>
>
>
>
>
>
>
>
> *From:* TriEmbed [mailto:triembed-bounces at triembed.org] *On Behalf Of *Glen
> Smith via TriEmbed
> *Sent:* Friday, June 05, 2015 8:52 AM
> *To:* Adam Haile; Shane Trent
> *Cc:* triembed at triembed.org
> *Subject:* Re: [TriEmbed] Large Format Laser Cutting Needed
>
>
>
> Would Touchstone 3D on Maynard have a larger format laser cutter? I can't
> remember the gentleman's name but he did a really cool talk at one of our
> meetings not too long ago.
>
> Glen
>
>
>
> On Fri, Jun 5, 2015 at 8:16 AM Adam Haile via TriEmbed <
> triembed at triembed.org> wrote:
>
> LOL... thanks, that's what I finally did. Just entered the desired (100lb
> cardstock) in their "other material" field. Will see what they say.
>
> My main concern is going to be price I think... they quote ~$2.50/min of
> cutting time and unless they've got some blazing fast lasers, I'm going to
> guess that I'll blow through my (already blown through) budget :P I may
> just have to break down and do what I've done with the rest of the
> project... spend many nights laboriously fabricating things by hand :P
>
>
>
> On Fri, Jun 5, 2015 at 8:12 AM, Shane Trent <shanedtrent at gmail.com> wrote:
>
> Now my turn!
>
>
>
> Adam,
>
>
>
> I just remembered that the RMS laser can open for sheet feeding so you can
> do long pieces but would still be limited to 35" width.  And you would have
> to index your stock between cuts but that is not much of a challenge. Let
> me know what you think of Pololu's service. I love those guys but have
> never used their laser service.
>
>
>
> Contact Pololu and ask them about card-stock or thin pressboard. I take it
> they are flexible about letting you drop-ship material to them or have them
> order it if you need a material they do not stock.
>
>
>
> Shane
>
>
>
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>
>
> --
>
> Jon Wolfe
>
> Anibit Technology LLC.
>
>
>
> https://anibit.com
>
>
>
>
>
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