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IndustryArena Forum > SignMaking > Portfolio Board > Here is a couple of signs
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  1. #21
    Join Date
    Oct 2010
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    0
    Sorry I misunderstood you. It's all in the software used to run it. I use vector art, but you can use grayscale bitmap images as well. It has to be a true black and white image the laser is pulsed on for black areas and off for white, and it runs like a printer back and forth across the image, and at the end of one line it will step up one line and repeat. When watching it, it looks like a giant inkjet printer. The machine uses a .mol file which I think is a machine operating language file. Probably similar to G-code.

  2. #22
    Join Date
    May 2009
    Posts
    1326
    Now I get it bpoulin, much appreciate your time

    I knew about the Lasers but I didn't know how they work and now I got it

    Thanks again
    Nicolas

  3. #23
    Join Date
    Oct 2010
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    No problem, any more questions drop me a line. [email protected]

  4. #24
    Join Date
    May 2006
    Posts
    202
    GLEN,

    Excellent work my friend.

    I always enjoy seeing your signs. Please keep posting.

    Joe Crumley
    Norman Sign Company, Norman, Oklahoma, SandBlasted Signs, Sign Painter, Redwood Signs
    Attached Thumbnails Attached Thumbnails Galyean2.jpg  

  5. #25
    Join Date
    Jan 2007
    Posts
    723
    A few more!

    Oops I posted a repeat!
    Attached Thumbnails Attached Thumbnails image-314369036.jpg   image-3486520517.jpg   image-2357222793.jpg  
    http://www.glenspeymillworks.com Techno LC4896 - 2.2Kw Water Cooled Spindle | Moving Table Mill from Omis 3 CMM, 500Lb granite base | Epilog Legend 32 Laser Engraver

  6. #26
    Join Date
    May 2006
    Posts
    202
    One of the big advantages for those of us with routers, we can pocket, mask, and paint as seperate pieces. I often us HP Vinyl letters, applied on panels. This also speeds up the finising process.
    Attached Thumbnails Attached Thumbnails Pecan Valley 2.jpg  

  7. #27
    Join Date
    May 2009
    Posts
    1326
    That's a beautiful job Joe

    What is HP Vinyl letters?
    Nicolas

  8. #28
    Join Date
    May 2006
    Posts
    202
    Nicolas,

    That is high performance vinyl which is cut in a plotter.

    If I was doing this job today I'd use Dibond or PVC for the letteering. But that was well over fifteen years ago and the materials weren't available. The major point being, with a router you aren't locked into having to paint the sign as a single piece. Most of my signs now are made in several pieces. Each being painted seperately and attached.

    Joe Crumley
    www.normansignco.com
    Attached Thumbnails Attached Thumbnails Pecan Village 3.jpg  

  9. #29
    Join Date
    Aug 2009
    Posts
    136
    what kind of wood are you using?
    kevin

  10. #30
    Join Date
    May 2009
    Posts
    1326
    Thank you Joe, you are a real artist. I looked at your site and that’s an excellent job you did.

    I will have a look in the stores and see what I can find. It will be an interesting experience
    Nicolas

  11. #31
    Join Date
    May 2009
    Posts
    1326
    My local store carries various thicknesses of self adhesive vinyl rolls

    I would cut the vinyl with my CNC router using 1/8”, 1/16” or 1/32” one flute bits.

    Is there any recommended vinyl thickness there?
    Nicolas

  12. #32
    Join Date
    Jan 2007
    Posts
    723
    Why not use a drag knife on your cnc? You could make or buy a holder easily and attach it to the spindle. Just don't turn the spindle on!
    http://www.glenspeymillworks.com Techno LC4896 - 2.2Kw Water Cooled Spindle | Moving Table Mill from Omis 3 CMM, 500Lb granite base | Epilog Legend 32 Laser Engraver

  13. #33
    Join Date
    May 2009
    Posts
    1326
    Quote Originally Posted by Pplug View Post
    Why not use a drag knife on your cnc? You could make or buy a holder easily and attach it to the spindle. Just don't turn the spindle on!
    That's an option I'm working on but I also read that some use the bit as a cutter.

    So the question remains: is there a specific vinyl thickness guide line for cutting either with a knife or a bit
    Nicolas

  14. #34
    Join Date
    Jan 2007
    Posts
    723
    You should ask that in the right forum. This one gets buried and fewer people see it. I think my knives can dig about 1/16" on my cnc. I haven't tried it yet.
    http://www.glenspeymillworks.com Techno LC4896 - 2.2Kw Water Cooled Spindle | Moving Table Mill from Omis 3 CMM, 500Lb granite base | Epilog Legend 32 Laser Engraver

  15. #35
    Join Date
    May 2009
    Posts
    1326
    Quote Originally Posted by Pplug View Post
    You should ask that in the right forum. This one gets buried and fewer people see it. I think my knives can dig about 1/16" on my cnc. I haven't tried it yet.
    No problem Pplug, dont know which one is the right forum so I will experiment and find out which vinyl gives the best results. I guess there must be other variables involved besides the vinyl thickness like plunge speed, router RPM, feed rate etc.
    Nicolas

  16. #36
    Join Date
    Oct 2010
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    0
    When you say vinyl, do you mean like peel off vinyl we normally run through a plotter? Because I can't see a rotating bit working on that it will wrap up and gum up a bit quickly. A drag knife really is the right way to do that on a flat bed CNC machine.

  17. #37
    Join Date
    May 2009
    Posts
    1326
    I read somewhere that you first paint the material and then cover it with vinyl sheet and let the CNC cut through the vinyl. After you spray paint the cut and then you peel off the vinyl. Perhaps I misunderstood but it sounds a good way of achieving a good finished product with 2 or more colours.

    Yes the vinyl sheet I got is with peel off backing. It looks like that the peel off is much thicker than the vinyl but never tried this process and don’t know what is right / wrong.

    I plan to use a hand held router to try a sample and see if it works or not
    Nicolas

  18. #38
    Join Date
    May 2006
    Posts
    202
    OK boys, here is one artists take on vinyl marking films.

    The only vinyl I use are the ones made for the sign industry. The High Performance will last for up to seven years and maintains good colors. These plotters are dead on accurate. My oldest, a "Gerber HS 15 plus" is twenty years old. I keep it to cut sandblast mask and vinyl as per the photo.

    Joe Crumley
    Norman Sign Company, Norman, Oklahoma, SandBlasted Signs, Sign Painter, Redwood Signs
    Attached Thumbnails Attached Thumbnails Dump-267copy.jpg  

  19. #39
    Join Date
    Oct 2010
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    0
    Quote Originally Posted by kolias View Post
    I read somewhere that you first paint the material and then cover it with vinyl sheet and let the CNC cut through the vinyl. After you spray paint the cut and then you peel off the vinyl. Perhaps I misunderstood but it sounds a good way of achieving a good finished product with 2 or more colours.

    Yes the vinyl sheet I got is with peel off backing. It looks like that the peel off is much thicker than the vinyl but never tried this process and don’t know what is right / wrong.

    I plan to use a hand held router to try a sample and see if it works or not
    This may work, I misunderstood what you were saying, I thought you were just trying to cut vinyl only. I would probably go with a paint mask in your situation. Vinyl is normally made to have a permenant adhesive, it may not want to come off your surface clean, and it may take the paint up with it. There are temporary vinyls, and paint mask that will probably work better for what you're doing.

  20. #40
    Join Date
    May 2006
    Posts
    202
    The way to make money is the shortest and ceanest process.

    My photo was showing sandblast mask applied over the whole panel, then using a small brad point round over bit to score the mask. After that I hog out the background to -.40. Now she's ready for sandblasting. I paint the background with the sb mask in positition. When the mask is removed there will be lots of adhesive left behing. I use a big disk sander with 100p to clean it all off. Now were ready for the finish coat. The black & white letters are High Performance vinyl for the lettering.

    Joe
    Attached Thumbnails Attached Thumbnails Dump 264.jpg  

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