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  • EEVblog #197 – RAW! Testing µCurrent’s, Keithley Current/Voltage Sources, DIY Pick And Place

    Posted on August 22nd, 2011 EEVblog 28 comments


    The first EEVblog “RAW” Dave was assembling and testing some µCurrent kits on UStream and decided to record it. There is talk about his Keithly Instruments Voltage & Current sources, engineering statistics, and an open source hardware DIY Pick And Place machine.
    http://www.eevblog.com/ucurrent
    The thermal video is here: http://www.youtube.com/watch?v=GkVRX3h_A30 Around the 8:30 mark

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    • Philly

      Dave,
      If a person felt inclined to use some commercially available parts to do the DIY Pick/Place, I see that one of the vendors of your inexpensive hot air station has all sorts of assembled boards for sale too. The one seller has a whole line of stepper motor drives that work with 3rd party software for controlling multi-axis. There’s 4 and 5 axis drives available. http://www.ebay.com/itm/CNC-TB6560AHQ-4-Axis-3-5A-Stepper-Motor-Driver-Board-/320732640254?pt=LH_DefaultDomain_0&hash=item4aad27b3fe

      I realize this isn’t exactly EE if you buy the parts, but, I think there’s plenty of work left to make this project consume lots of time.

      • Tom

        Hi,

        If you are interested there are several build logs for homemade pick and place machines on cnczone.com now.

    • http://joro.geodar.com/diary/ Georgi Todorov

      Hey Dave,

      These free-style videos are nice! Keep em coming. :)

      You’ve been doing quite a few videos where you’re not facing the camera while talking, It would be nice if you can use a lav mic for those since your voice gets lost. Even one of the cheap $25 ones will probably do a very good job.

      Cheers,
      Georgi

      • http://www.eevblog.com EEVblog

        Yes, I would use one if I knew I wasn’t facing the camera. Just didn’t think of it this time, as this video was spur of the moment.

    • Mav

      Hey your thinking of flying a quadcopter down a canyon, if ya got the pennies for a lidar unit or two you might want to check out SLAM.

      http://www.youtube.com/watch?v=WtjR–ClR3Y&feature=related

      I seen a couple of projects using the Kinect for SLAM but doubt that would be much use outdoors.

      Map that canyon , sure would be cool :)

    • William

      Hi Dave,
      What was the name of the other blogger you mentioned on #197?

      Bill Lee
      Northridge, Ca 91326

    • Lou Parsons

      How come the website says ‘out of stock,’ rats?

      @ 11:08 PST

    • http://www.otelo.or.at Georg

      Just have a look at:

      http://www.youtube.com/watch?v=fsWpC6L91qo

      The guys from the Ultimaker already have a suggestion …

    • Imnama

      Hi Dave,

      Quadcopter (or hex, or oct) is big in europe.
      Also flying solo with gps.
      Check out this german site
      http://www.mikrokopter.de/ucwiki/en/Mikro­Kopter.

    • chippy

      Says sold out on the uCurrent
      I want to order!!

    • Neil

      Hi Dave, am looking for a small touchscreen lcd any chance you can give the info on the one you were looking at for the Calc Watch.

      Cheers

    • Robert

      I say go ahead and make more of these. More content is always good and these types of random ramblings are always entertaining, it’s like a less structured drive time rant. I like it!

    • rfarrelly

      Dave,

      Can I recommend a great vblog I found lately, yes?

      It can be found at http://www.thesignalpath.com, if anybody likes your vbloggin they will like this content.

      Although there is little on here compared with your stuff, it is quality and the guys who run it have just really started.

      Cheers

      • http://www.eevblog.com EEVblog

        Yeah, it’s good stuff, recommended.
        I think they mentioned they were inspired by my blog(?)

        Dave.

    • mlaargh

      Hey!

      Enjoying the “raw” video (not watching live, however), actually prefer it to the chatroom centric shows… Keep ‘em coming!

    • Graham

      Would have been better if you could have faced the camera I’m sure the unit is much more interesting than your back for minutes on end.

    • http://hackedgadgets.com Alan Parekh

      Hey Dave your video was giving me carpal tunnel just watching you turn those screws by hand. :) One suggestion is to use a drill with a clutch set way low to either drive the screw just 90% into the plastic thread or all the way with some delicate adjustment. On some of the cheaper ones the clutch is hit and miss but on the medium priced drills like a Dewalt I was surprised how repeatable the clutch setting was on delicate items.

      • http://www.eevblog.com EEVblog

        Yeah, they are called electric screwdrivers. I’m not advanced enough to own one of those yet! Yet another damn thing I have to remember to recharge.

        • Robert

          Oh Dave, you just mod it! Make it run off the mains :) (Or just buy one that does that from the start but where’s the fun in that?)

    • http://open-roadster.com Weston Schmidt

      I enjoyed listening to you work while I am working on my various projects :). It’s like hanging out with a cooler & smarter version of me.

    • http://none Roland

      Hi Dave,

      I saw nice ready made pick and place machine.

      http://www.ntscope.com/PX3700.html

      Your could be made with the same way as it was.
      Also you could use any Open Project 3D printer

      Regards
      Roland

    • JRR

      Dave, I just came across this object on thingiverse.com and thought of you. Particularly interesting given the Makerbot VC post you just made too

      Open Pick-N-Place Tape Feeder by Erik

      http://www.thingiverse.com/thing:7291

      • JRR

        Also check the video link on that object, and that there are at least a few DIY/open source pick and place projects already started.

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    • kyndal

      what happens to all the lids??

      do they make their way.. through some
      wormholes in space’ to an entirely different planet?,

      and give in to the local inhabitants entirely more Biro life style?

      /Rune Kyndal

      • http://www.eevblog.com EEVblog

        Got a good idea for hundreds of UB5 Jiffy Box lids?