Silicon wire, hall sensors & terminated from delta to wye ‘‘mod’’ for my actual hub motors. Works like a charm but have a second one to do… sanding off the isulation from the motor wires sucks.
nice job looks very clean, I did the same solder joints as you, they are still holding up strong! [quote=“whitepony, post:40, topic:3061, full:true”] did the mod as well and very happy with it. had my doubts about the soldering connection … was really hard to get the coating off. but the connection is strong and the resistance through all phases is equally low.
added really thick shrink tube with glue inside that i sticked in really far into the motor. that stuff becomes really stiff once its cold and the glue additionally suppresses any movement.
[/quote]I sanded off the insulation but how did you check the resistance after? I just want to make sure I took most of it off.
I measured the phase wire resistance before and after the mod. probably doesnt mean much though. good test is probably to send a lot of current through the joint and check if it heats up more than the rest of the wires.
just did this exact mod a couple weeks ago on the AT build i just finished up:
I used heat shrink on the individual leads and then grouped them together with a wider piece as well.
These were probably the easiest motors to do this to so far.
Is it better to use 10 awg or 12 on sk3?
12 gauge is perfect. 10 might not be at easy. The cables get really close together.
agreed. 12 is ideal. I’ve used 10 before but its harder to match up the shrink tube. The beefier leads definitely add a muscular look though.
Are you using 12 gauge from batt to esc too?
I use 10 AWG. It has a higher current rating for obvious reasons… I’m future builds I will switch to 8 gauge though.
Here’s a chart.
http://www.westmarine.com/WestAdvisor/Marine-Wire-Size-And-Ampacity
Dont think that chart in entirely true. Looks like minimum run of cable is 10 feet we are looking at about 1 foot max. Maybe im reading it wrong but check out this site. http://www.solar-wind.co.uk/cable-sizing-DC-cables.html
I got this
got them from a german shop which is specialized in shrink tubes: http://schrumpfschlauch24.de/index.php?cat=c46_Schrumpfschlauch-MIT-Kleber-Schrumpfschlauch-MIT-Kleber.html
Yea, calculator is a better choice for determining the wire gauge.
This guy here is using NaOh to remove the enamel / insulation: https://www.youtube.com/watch?v=EbHFtX_KtbE
Might be worth a shot…
Though, have not tried to remove the coating… but perhaps someone finds this useful
I had trouble soldering the thick copper wires. My first attempt was straight-up ugly. Then I used this technique, and it worked perfectly
got a termination diagram? i’ve been temped to reterminate one of my broken sk3s…