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Weller Micro Soldering Kit and Filtration Unit - first test of desoldering tweezers

Jan Cumps

Testing the desoldering tweezers. I removed a set of SMD components from a multi-layer board:

  • rework with tweezer and conical tip: RTM 013 S MS:

    You can see that my hands aren't yet used to the connector and the tweezer iron.

  • I just did a new rework test. Remove 3 0402 resistors from a multilayer board, and replace them.

    The video above was done right after unpacking the kit. This time, I have a week of experience. You may notice that I'm more comfortable with the tweezers and iron than in video 1. They now feel natural.

    what was used from the kit:

    • the station, at 380° C. Both for tweezers and iron.
    • conical bent tip solder tweezers (RTWMS 004 C X)
    • bevel micro solder tip 0.4 mm (RTM 004 B MS)
    • micro solder iron
    • tweezers
    • auto tip cleaner (not in view)
    • fume extractor (partly in view)

  • in reply to Jan Cumps

    I've found that using smaller de-solder braid on smaller pads is worth the trouble of having several different sizes. The tiny bits you need for 0402 parts have trouble getting enough heat into the thicker braid.

    MK

  • in reply to michaelkellett

    I have smaller braid, just not handy while filming Slight smile. For some situations I clip off a piece and drag it over the pads with tweezers. I'm also a pre-heater fan.

    The micro solder iron hasn't got a lot of heat capacity. For anything sizeable (braid, large copper area), you notice a little delay before the solder melts. Unless you go real high temp. The irons are at their best with tiny components in tiny areas.

  • in reply to michaelkellett

      , the largest iron of this kit (the micro solder one) comes with tips that are at the small side of its range. (except for the gull wing - that's hefty, put specialised).

    I ordered one of the larger chisel tips of this line. One that I think has enough mass for some thermal buffer. 
    image

    I didn't buy the largest one. Once I'm into the larger SMD and through-hole realm, I have better suited options than Weller's WT line. But I expect that the tip I ordered will allow me to work on small size surface mount boards with the odd through hole pin. Or with FETs and ICs that have a ground plane area

  • in reply to Jan Cumps
    Jan Cumps said:
    I ordered one of the larger chisel tips of this line. One that I think has enough mass for some thermal buffer.

    It arrived today - this would not be the daily runner for this setup. But it 'll come handy when I'm working on an SMD design with large pads or through-hole component.

    image

  • More frantic test with the tweezers. A series of 0402 resistors and capacitors removed from a multi layer board.

    90% went very easy - in a second. Some had a pad on the ground layer, and that took a few seconds. For those, it would have been better if I put the board on the pre-heater.

    image

  • in reply to Jan Cumps

    So nice, I would love to have some tweezers!

  • Some more SMD work with blade style tweezers, and the largest tip I have for this set: Chisel 3.2 mm