Connect with us

What do you call something...

Discussion in 'General Electronics Discussion' started by Doug3004, Apr 12, 2018.

Scroll to continue with content
  1. Doug3004

    Doug3004

    119
    23
    Sep 5, 2014
    ...that has no name?

    I want to buy plain circuit board... That is--with no holes, and no copper on it. I need it to mount some PC keyboard-style buttons to, that require odd hole spacing. But I want to be able to solder on the switch wires, and so I don't want copper-clad board, even if it's just clad on one side. And I don't want to etch the copper off a piece of copper-clad....

    I don't want perfboard, or breadboard, or bussboard, or veroboard, or copper-clad board.

    I started looking on aliexpress but have tried in google and can't turn anything up. I find 10,000 places selling little perfboards, and 10,000 places offering custom PCB services.

    If I look up 'phenoic board' most places, I get this red glossy-finish epoxy board that would work (the thinnest is usually 2mm, and you can get it up to 15 - 20+ mm thick) but they want like $25 a square foot for the 2mm thick. I don't need that much, nor do I want to pay that much. And it is a higher-grade material usually sourced from composite manufacturers, it's not the same lower-grade stuff that PCB's are made of.

    I know I've seen this stuff for sale but I can't recall where....?
     
  2. Robert_fay

    Robert_fay

    124
    34
    Jun 15, 2017
    Unclad non-perf board.

    Try this one [​IMG]
     
    davenn likes this.
  3. kellys_eye

    kellys_eye

    4,275
    1,147
    Jun 25, 2010
    Plastic.

    Wood.

    Fibre glass.

    Phenolic resin board.

    'anything' - as long as it's stiff, non-conductive.
     
  4. AnalogKid

    AnalogKid

    2,515
    718
    Jun 10, 2015
    Glastic

    Basically, sheets of fiberglas impregnated with resin, just like FR-4 pc board material. Glastic is both a brand name for a specific company's product line, and a generic name for similar products (like "Kleenex" for tissues).

    ak
     
  5. Doug3004

    Doug3004

    119
    23
    Sep 5, 2014
    Well yea but,,, when I searched anywhere for "composite sheet 2mm", the most-common kind of composite sheet I'm seeing is carbon-fiber panels.

    After a couple hours of looking on aliexpress, I did find a couple places selling it. One place calls it FR4 board, and another calls it "3240 sheet". They also have pieces smaller than a square foot.

    After pondering all this for a bit I may just decide to try making a square punch and get some regular plastic (polycarbonate) and try making some 14mm square holes instead, to hold the switches by the body. Fiberglass sheet would not punch as nicely, and I bought the (Gateron brand) "PCB-mount " switches but the footprint doesn't lay out on a .1" grid.
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,839
    Jan 21, 2010
    There are many different types of material used. Added to that, some are incorrectly labelled on sites like eBay and Ali express.
     
  7. WHONOES

    WHONOES

    1,170
    319
    May 20, 2017
    Try searching "Fibreglass sheet" on ebay. I got loads of hits.
     
  8. davenn

    davenn Moderator

    13,866
    1,958
    Sep 5, 2009
    did you not click on the image/link that @Robert_fay gave you in post #2 ??
    it takes you to the digi-key site
     
  9. Doug3004

    Doug3004

    119
    23
    Sep 5, 2014
    Yea I did, but there's two problems there:
    1--it is a square foot, and I kinda I didn't want that much. And also-
    2--it is fiberglass. For this use I'd much rather have cotton or paper phenolic because it won't destroy my saws and drill bits. And that fiberglass board is the only single item that DigiKey has for unclad board.

    The red "phenolic sheet" I mentioned earlier is usually cotton fiber:
    https://www.interstateplastics.com/...PHENC~~SH.php?thickness=0.250&dim2=12&dim3=12

    If I try the hole-stamping method, then I won't use any kind of resin board at all because it's too brittle. Making a square-hole punch with sharp edges is kind of a pain in the rear however. :>|
     
  10. LukeDupont

    LukeDupont

    19
    1
    Apr 15, 2018
    You could by thin, 1/4" wood, find a chisel with exactly the right dimensions as your squares, and mortise out the holes by hand -- if they aren't *too* close together. Wood splits along the grain and may not be sturdy enough if there are too many too close, though. Just a thought!
     
  11. Mamba Yang

    Mamba Yang

    1
    0
    May 17, 2018
    Does that call 94HB? But it seems that it should be etched by a board maker.​
     
  12. Minder

    Minder

    3,104
    664
    Apr 24, 2015
    What I use is Lamacoid, at any engraver, I draw up the panel in DWG format and send it to my guy and he cuts out all the shapes you need.
    Also comes in a choice of many colours if needed.
    If you need legends/labels, I get the reverse engraved type so that the surface is completely flat where the legends are.
    M.
     
  13. Minder

    Minder

    3,104
    664
    Apr 24, 2015
    There is also 2mm Plexiglass Acrylic on Ebay in different colours.
    M.
     
    Last edited: May 17, 2018
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-