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Congrats Bean on your product listing at Sparkfun — Parallax Forums

Congrats Bean on your product listing at Sparkfun

Paul BakerPaul Baker Posts: 6,351
edited 2006-07-10 14:52 in General Discussion
I was checking out the new products at Sparkfun, and lo and behold I see your video module and LED module availible through them. Congrats!

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Life is one giant teacup ride.

Comments

  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2006-06-16 16:09
    Sparkfun has these very handy SPI Numeric LED modules for $3.95.
    I bought a bunch from Bean earlier as I had seen a competator in Nuts & Volts asking $20US a piece for similar devices!

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    "If you want more fiber, eat the package.· Not enough?· Eat the manual."········
    ···················· Tropical regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • BeanBean Posts: 8,129
    edited 2006-06-16 16:49
    Thanks guys,

    · By the way, I have a couple hundred displays that are scratched really bad (but still work fine), if anyone wants some, I will give you DOUBLE the quantity. Just order from www.hc4led.com ·and put a note that you want "double quantity of scratched displays".

    Terry Hitt
    Hitt Consulting

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    Cheap 4-digit LED display with driver IC·www.hc4led.com

    Low power SD Data Logger www.sddatalogger.com

    "I reject your reality, and substitute my own." Mythbusters


    Post Edited (Bean (Hitt Consulting)) : 6/16/2006 5:15:10 PM GMT
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-06-16 17:33
    Terry,

    ·· It might make it more worth it for some people if they knew that using a red filter lens should make the scratches disappear.· This could be just some Red translucent plexiglass.


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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • Ryan ClarkeRyan Clarke Posts: 738
    edited 2006-06-16 17:58
    And that there has already been a Propeller object written to drive these [noparse]:)[/noparse]

    Ryan

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    Ryan Clarke
    Parallax Tech Support

    RClarke@Parallax.com
  • MikeKMikeK Posts: 118
    edited 2006-06-16 20:53
    Chris,
    Do you have a source for inexpensive red plexiglass? I searched for it, but probably used the wrong keywords. I kept coming up with photo filters ($$$$).
    Mike
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-06-17 01:14
    There is a place locally (Sacramento) that has all kinds of platics.· You may need to see if there's one in your area.· One other option I used years ago in Audio Level meters was some craft stores sell a kinf of cellophane that is thicker than the normal stuff.· That could also work.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • ForrestForrest Posts: 1,341
    edited 2006-06-17 02:16
    Another possibility are red plastic folder tabs - which you'll find in office supply stores.
  • BeanBean Posts: 8,129
    edited 2006-06-17 03:09
    I wonder if you could print solid red on a transparency with an ink-jet printer ???
    Hmmmm, I may have to try that...
    Bean.

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    Cheap 4-digit LED display with driver IC·www.hc4led.com

    Low power SD Data Logger www.sddatalogger.com

    "I reject your reality, and substitute my own." Mythbusters
    ·
  • MikeKMikeK Posts: 118
    edited 2006-06-17 04:12
    The best I found locally w/o going to a plastics supplier (which isn't especially local) is pink cellophane wrapping paper. A couple of layers between two sheets of thin clear plastic are okay temporarily, but don't work well enough for any kind of "final" work.

    I'd thought of the transparency idea, but since most inkjet printers are CMYK, the red would have to be a mixture of colors. I wasn't sure how even it would end up That, and not having any transparency film kept me from trying it.

    Years ago, I remember buying report covers that had transparent red, blue, yellow? covers. I checked the usual office megastores and I can't find anything transparent except clear. That stuff was thick enough to work in this application, but thin enough that it could be cut with scissors.

    Is there such a thing as transparent paint?

    Also, I found a guy on e-bay selling transparent red plexiglass. The prices aren't too bad, but the shipping (Texas -> Maryland) is almost as much as the plastic.

    Mike
  • kjennejohnkjennejohn Posts: 171
    edited 2006-06-17 06:31
    I found the following auction of adhesive backed red plastic sheets on Ebay:

    cgi.ebay.com/ebaymotors/Transparent-Red-Plastic-with-adhesive-8-x-12-sheet_W0QQcmdZViewItemQQcategoryZ42613QQitemZ7983151282QQrdZ1QQsspagenameZWD1V

    This seems to be what you're looking for. Hope this helps.
    kenjj

    PS I can't STAND those d*mn dancing icons in the margin!!!!!!!!!!!!!!!!!
  • kjennejohnkjennejohn Posts: 171
    edited 2006-06-17 06:34
    Hmmm, I tried the link and got no pictures on the auction site?! Oh, well! I use "red plastic sheet" to search for this!
    kenjj
  • MikeKMikeK Posts: 118
    edited 2006-06-17 14:15
    Looks good, and inexpensive enough not to break the bank if it doesn't work out. Thanks.
  • SSteveSSteve Posts: 808
    edited 2006-06-17 22:07
    kjennejohn said...
    PS I can't STAND those d*mn dancing icons in the margin!!!!!!!!!!!!!!!!!
    Same here. See if your browser allows you to block specific images. The one I use (OmniWeb) does. If not, you can use Privoxy (www.privoxy.org/).

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    links:
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  • RDL2004RDL2004 Posts: 2,554
    edited 2006-06-17 22:25
    Those scratched displays could probably just be sanded and polished to remove the scratches.
    Might not be worth the cost of the sandpaper and polish though.

    Parts Express has some colored gels for stage lighting that might work as a display filter.

    www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=244-106


    - Rick
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2006-06-18 11:10
    Sandpaper [noparse][[/noparse]even 440 or 880 grit is way too rough].

    Automotive shops provide at least two grades of polishing compound for removing scratches from your painted exterior.
    There are a fine and a course. I believe that the red is the Fine and will polish acrylic plastic quite nicely.
    Ask for Dupont Polishing Compound.

    You can even burnish areas with a Q-tip.

    There is a lot of translucent 'Smoke colored' plexiglass available that will do as well or better than the Red gel stuff as it is quite thick and stiff. It won't wrinkle or move around on you. Just glue or bolt in place. Google 'smoke colored transparent plastic'

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    "If you want more fiber, eat the package.· Not enough?· Eat the manual."········
    ···················· Tropical regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • RDL2004RDL2004 Posts: 2,554
    edited 2006-06-18 14:28
    Well, you have to start with a grade of sandpaper that will take out the existing scratches and work your way up to the finer grits and polishes in stages.

    I formulate OEM wood finishes for a living and some of these are nitrocellulose based lacquers that are used on furniture, musical instruments and such that must be rubbed to a smooth, high gloss appearance.

    Typically the first "cut" is with 400-600 grit paper used with a lubricant (often just water), this is to even out the normal "orange peel" look you get with spray applied finishes.

    Anyway, its probably not worth the effort, a red or smoke tinted filter will hide the scratches just fine.

    BTW, that Ebay seller with the red vinyl sheets also has them without the adhesive in their Ebay store.

    I'm not sure the adhesive backed type is what you want for this application.

    - Rick
  • Robert KubichekRobert Kubichek Posts: 343
    edited 2006-06-18 17:12
    Bean (Hitt Consulting) said...
    Thanks guys,

    By the way, I have a couple hundred displays that are scratched really bad (but still work fine), if anyone wants some, I will give you DOUBLE the quantity. Just order from www.hc4led.com and put a note that you want "double quantity of scratched displays".



    Terry Hitt
    Hitt Consulting

    Heh Bean, did you ever try to use the liquid scratch repair for Cd's, or plastic lens glasses???

    I'll bet the cd repair liquid would fix em real good....smilewinkgrin.gif

    I have picked up on EBay several different colors/shades/thicjnesses of plexiglass sheets for making filters on flashlights, REAL cheaply too!!yeah.gif
    Also, an application of liquid superglue left on to dry should fill in the cracks, but I would try 1st....

    Bob scool.gif
  • metron9metron9 Posts: 1,100
    edited 2006-06-19 14:05
    Hey, I have a nice HP Indigo printing press see www.ccspecial.com for picture of press.
    It is a digital litho press that works like a laser printer.


    It uses plastic ink and prints perfect translucent C M Y K on Lexan, and clear polycarb materials up to 60mm thickness.

    I can even have a full color picture backed with white in 230 line screen resolution on the part.

    So let me know if you want free samples of an Idea you have. Maximum size is 12 x 18 inches.

    Price about $3.00 per 12 x 18 inch in small quantitys.

    We can die cut to shape, as well as place pressure sensitive adheasive.


    Question for Bean, Have you sourced the 1W Luxeon LED. (Clones) I am looking for quantitys in the hundreds. I have bought from http://www.hebeiltd.com.cn/?p=z.pricelist.led.diode

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    Think outside the BOX!
  • StarManStarMan Posts: 306
    edited 2006-06-19 23:20
    metron9,

    Have you looked at buying the actual Luxeons from the Future Electronics web site (http://www.lumileds.com/products/rd_order.cfm)?· It looks to me that their pricing is better.


    Chris I.
  • RacerXRacerX Posts: 6
    edited 2006-06-19 23:43
    In the non digital age printing industry, we use a product called Rubylith which is great for masking LED displays.

    http://www.misterart.com/store/view.cfm?store=001&group_id=656

    About $8 for a 30"x40" sheet.

    Rubylith® is a red masking film, which is suited for use with orthochromatic films. Rubylith® is safe for use with camera speed darkroom films as well as indirect gelatin stencil films and diazo, diazo acrylic, or SBQ sensitized stencil films or emulsions. Rubylith® is primarily used in the camera and plate making operations for offset lithography, flexography, gravure, and screen processes where orthochromatic films and plates are used.

    Rubylith® RM3 is a high tack ruby film coated onto 300-gauge polyester.
  • mediaprefectmediaprefect Posts: 31
    edited 2006-07-09 01:39
    If you just want a clear red smooth overlay, you might consider using theatrical color filters e.g. Roscolux #26 see: http://www.rosco.com/us/filters/roscolux.asp

    It's thin but strong and available from dealers all over the country.
  • MikeKMikeK Posts: 118
    edited 2006-07-09 15:02
    I found some inexpensive red plastic boxes at the Container Store the other day. Search for "amac" at www.containerstore.com.
    I just mounted my project inside one of these, but I suppose they could be cut up to make filters.

    Mike
  • bsparkybsparky Posts: 52
    edited 2006-07-10 14:52
    I went to the local plate glass supplier and bought 1/16" red plexaglass a 12" x12" piece cost me $ 10.00. Works great!
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