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  • EEVblog #573 – Mailbag

    Posted on January 28th, 2014 EEVblog 14 comments


    Mailbag Monday
    SMD Adapter PCBs
    NXP SMD Package Cheats:
    Leaded
    Non-Leaded
    HP 41 Calculator upgrade PCB
    OHARARP Lab Notebooks
    CNC-Design in Finland Laser Cut 3D Signs
    Hacked Microsoft Lifecam DIYINHK USB Microscope
    uARM 4-Axis Arduino Open Source Hardware Robotic Arm Kickstarter
    Forum HERE

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    • Michael

      Dave,

      It kills me to see you hacking the paper with that blunt object you call a knife. PLEASE! Take a lesson from Mic Dundee and get a “real knife.” :)

    • Chris

      I’ve got to stop following your twitter feed. It’s like reading the spoliers before watching the movie. :-)

    • MarkR

      Switched off the local analogue TV TX. The very same TX which is sitting behind you on the shelf! Time to dig it out and fire her up…

      • Worf

        That’s just an exciter, not a full transmitter…

        • MarkR

          300W of Exciter. Even if it was 300mw it would transmit across the lab on the lab on a dummy load.

    • Skye Sweeney

      That robot arm might be very nice for pick and placing large items like CD/DVDs for a home made disc duplicator or backup system.

      • huh

        If it can lift beer cans and scratch my cat’s back then I want one!:)

    • Chris 555

      Dave – regarding backlighting the sign – I see some good ideas on the forum, like an LCD diffuser or lighting from the side.

      I also came across something the other day that I’ve been wanting to try. They make some sort of etching cream to add a frosted effect to glass. Not sure if it would work for other materials, but it’s worth a shot. If it does, it could give you a nice even lighting effect. Available at hobby/craft type stores, Walmart, etc.

      I saw it mentioned here: http://www.eetimes.com/author.asp?section_id=36&doc_id=1320712

      • http://www.eevblog.com EEVblog

        I’ve tried a diffuser and it’s still quite poor.

    • http://www.pauljones.id.au Paul Jones

      Dave, are you using your new mic? The audio on this video sure sounds much more crisp than it usually does. The things you notice with studio monitors! :)

    • Bruno

      For back-lighting the sign, have you considered using EL panels? They’re evenly lit across their surface, and you can get them in quite a few colours.

    • electrolux

      Brilliant arm, but it’s open source so is there any where I can download the plans and programming code?

    • electrolux

      When is the robotic arm vid coming?

    • Eric B

      No word on where to get those cool lab notebooks? I’d love to have one of those Amp Hour notebooks with my name on the spine!