I am hoping to get away without a fan for now, the heatsink on it currently is pretty beefy just gets a little warm. Its rated for 1200W and Iām only using ~330W. Also with only a few volts difference between input/output it is fairly efficient.
I have in my metr logs from my trampa (my ride) our rides max out at around 11.85 miles before the lipos in the other board hit the 3.5v cut off. He weighs around 185lbs. The board is dual 5055 geared for 22.5 mph with 45A total batt max running 2x Zippy 5s 5Ah lipos. The area is mostly flat which definitely helps. I believe it was getting around 16Wh/mi when he rides it and around 12Wh/mi when my sister(significantly lighter) rides it. Maybe its that hard as a rock urethaneā¦
it looks like they are using the cheap welder tips not the nice Kweld ones. Wonder if that is for good reason or what.
if I did this I would try to use them but perhaps they are too large/the rounded ends need to be rotated because they donāt get obliterated like the smaller ones and more need resurfacing than replacement.
Maybe the benefit is consistency since the tips are cylindrical rather than conical, they would keep roughly the same cross section as they are used. Keep a few on hand and treat them as consumables.
yeah thatās pretty much what I thought. Iām sure with perfectly even pressure you are less likely to get sparks and wear down the electrodes maybe.
Iām sure it works fine the Kweld tips are meant more for using by hand anyways
Exactly. I had played with tip shapes, and a soft rounding achieved the best electrical contact considering that the material softens and dents during the pulse. The other reason of having a conical shape is better electrical conductivity of the thicker copper rod, and less heat generation when compared to thinner tips.
Got used to it 