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Member Since: June 30, 2010

Country: United States



Technical support

Spoken Languages

English Sarcasm Engineering

Programming Languages

C/C++ ASM PIC C Basic


No none good ones



  • Very nice motor. The label on the motor I received said “Robotzone”, so I guess that’s who makes this assembly. The motor specs listed are pretty close to the characteristics of the motor I received. I don’t have a way to test max torque, but stall current was about 1A.

    A couple of notes:

    1. There are 6 blind threaded mounting holes, not 3. All 6 mounting holes in my motor are the same thread (as listed on the print), and approx same depth.

    2. Depth of the mounting holes is not listed on the print. (I measured about 3-4mm)

    3. You have to make EXTREMELY sure that the screws that you use to mount the motor do not bottom out in the mounting holes. If they do, they will push the gearbox apart.

    4. A few of the dimensions of the motor I received were outside the dimensions listed in the print. Nothing critical for what I am doing, but something to be aware of if you’re planning on putting this motor in a very tight space. The mounting holes, shaft, and shaft location were all to print, which is what mattered to me.

  • These are THE tweezers for SMD work. I got the straight and curved tweezers, and LOVE my curved ones.
    TSSOP-10, 0805, 3216, these tweezers are perfect for those packages, and larger packages.

  • I don’t know that they do use lead-free solder, and I don’t know that they don’t. I suspect they do use ROHS solder since it is popular.
    As long as the kids don’t have extended exposure to lead, no harm done. An afternoon spent making a dozen solder joints or so isn’t going to have enough lead in it to harm anyone unless they sit and chew on the solder. There is more exposure to lead by falling and skinning a knee on the road (lead wheel weights) than soldering.

  • I am very impressed. Setup was about as easy as it could possibly be, and I was up and running in less time than it takes me to get dressed in the morning (which is really saying something)!
    I bought this because I was having trouble with SPI, and within 15 minutes of receiving it I had the problem located and fixed.
    I also used this to analyze some PWM measurement issues I was having (inconsistent PWM freq & duty cycle) that the benchtop ‘scope didn’t show very well. Exporting Logic data to CSV and using some VB code in excel, I found a fairly easy solution in a short time. It would have taken me for-bloody-ever otherwise.

  • This cable is good for fairly slow speed signals. Starting at about 20khz it introduces a ring into the signal you are probing. About 0.75 volts peak to peak on a 0-5v square wave.
    By 40mHz, this probe is worthless: An oscillator triangle wave (not sawtooth) looks more like a bad DAC sinewave on the oscilloscope.
    Also, check the soldering at the hook ends. Mine had a cold solder joint on one hook that was causing some trouble with the signal.
    A decent probe for the money, but it won’t replace the normal oscilloscope probe.

  • This is a great iron. I have been making do with a Weller SP12 (not a bad unit, but still not temperature controlled, and only 12 watts), but this iron is awesome.
    I was quite pleased that the tips slid in and out rather than screwing on, and the heating element is inside the tip, not the handle. This makes it much less likely for the tip to work it’s way into the handle due to heat cycling (like the SP12 does after a few months of constant use).
    For those ordering extra tips, this iron (70W digital) is an Aoyue Int 2900.
    The plastic tube with removable caps is the axle to hold the solder spool on the soldering iron stand.
    Also, you will need to keep the base unit at least a foot away from an oscilloscope if you have one. The base unit can emit enough EMI/EFI to make the scope show weird stuff as it is heating and maintaining.

No public wish lists :(