Yeah, I've seen that video.
It's OK, ... with perhaps certain reservations of choices and equipment / methods used
He does mention a great older Flux, known previously as "
DUZALL", which he suggests was made in New Zealand but the 'Recipe', was Licensed for a number of people to make, (Ages ago I went searching to find the flux Hutcho' recommended, being
DUZAL and eventually got to speak with the original creator of
DUZALL,... a lovely old guy, who was very helpful).
I can only heartily recommend it's continued use, as it IS still available and is a liquid
Zinc Chloride Acid Flux.
It is a
particularly aggressive flux that requires Extremely Good Clean Up after use !!! Omit, at your Peril
It was formulated for use when soldering copper, brass, bronze, stainless steel, monel & nickel chromium.
It can be purchased in New Zealand, from
DLM Wallace and Locally, it can be purchased as
CA Fluid 801 from a variety of places like places. I originally purchased it as "
EZI-Weld Fluid 801"
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It can be purchased from Blackwoods, National Welding Supplies and, ofcourse, ... eBay
Personally, I'm not to Keen on the Motor mount used in that video, I think there are better alternatives out there, Without having to Add a convoluted Piano Wire brace as shown in the video.
The AB Slot Sports unit comes to mind, as it is easily modified and provides a great Sturdy Location using the existing Bearing upright, as a convenient 'Brace'
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I note he also utilizes some 'Kapton' or Polyimide tape (to help prevent Shorts and Aid in the Easy removal of the Double Sided Foam tape
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).
I'm not so sure the use of such a Large and perhaps Hot Iron is well advised, (without suitable temperature control), as it is best practice to Not transmit overdue Heat to the board and components.
As far as the Wiring is concerned,... one has to understand that in much the same fashion as a 3 x Pole Brushed motor, the poles are wound with (in effect) one complete piece of copper wire.
With a 9 x Pole Brushless motor, the same scenario is simply multiplied by 3 and is in effect three continuous pieces of copper wire wound around each grouping of 3 Poles.
It does Not really make a discernible difference Where the 3 x wires are attached to the E-Comm / ESC and if the motor runs in the wrong direction after connection, ANY 2 x wires can be changed to reverse the direction.
Many people seem to place the Middle Wire on the Middle Solder Tab but there is NO specific 'Middle' Motor Wire, it is simply the connection to 3 x Poles of the Motor.
The wire really doesn't Weigh THAT much but dressing it well and/or shortening it probably cant hurt, as long as some flexible 'Strain-Relief' is retained
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