Popular Post RagingGrandpa Posted November 29, 2021 Popular Post Share Posted November 29, 2021 (edited) Pt1 (weights and exterior):https://ecodrift-ru.translate.goog/2021/11/29/veteran-abrams-vneshnij-vid/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=nui Pt2 (internal):https://ecodrift-ru.translate.goog/2021/11/30/veteran-abrams-razbiraem/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=nui Edited November 30, 2021 by RagingGrandpa 4 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted November 29, 2021 Share Posted November 29, 2021 9 minutes ago, RagingGrandpa said: Pt2 (internal): [pending] Hnnnng can't wait to see that! 1 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted November 30, 2021 Author Share Posted November 30, 2021 (edited) It's heeeere There was a full pound of dried-up sealant in the tubeless tire?! Such an imbalance would have been hilariously terrible to ride at high speed... almost a shame ecodrift removed it before having a ride. What an awful state to ship an EUC in! I hope it was a rare fluke, as most owners cannot service tires themselves. Tire-change sounds like the shell-split method, instead of the motor-drop method. But that means we only need to unplug perhaps one battery connector, and the difficult motor screws remain in place, OK. "Hollowcore"-type bearing looks excellent for durability, serviceability, and contamination resistance. Quite similar to Gotway's Gen2 small-bearing hollowcore, which has been well received. TONS of copper in the motor windings (a high-speed, 3-turn winding). The motor will not be the weak link when high current is considered. But isn't the bottleneck the controller and phase wires (which are only slightly larger)... copper is heavy! Axle is keyed but not welded? At least the radius is 3x that of old-style stub axles... hope it doesn't develop slop. It makes me wonder if vibration here could be contributing to the "loud motor sounds" Abrams exhibits. Samsung 21700 50E cells, seems good. No Nickel-Cobalt cell should be treated as "safe," of course... Board using external copper 'bus bars' for the high-current path, might help keep the PCB cooler, OK. The two charging ports are double-pinned, as they should be. .02 Edited November 30, 2021 by RagingGrandpa 3 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted November 30, 2021 Share Posted November 30, 2021 Hmm, not perfect (and heavy!), but a nicely done construction, full of new ideas. Thumbs up Veteran people I like how the connectors (motor and batteries) have their own sealed compartments. Samsung 50E - no fire concerns! They left a little "fun" extra in the tire - it is a Chinese EUC manufacturer after all... The motor has a solid axle, but it's very thick. This is neat, but a hollow construction would offer more space for the motor cable, which is bent a little sharply. But they can improve that with a simple semi-rigid protective sleeve for the cable. 3 Quote Link to comment Share on other sites More sharing options...
Kekafuch Posted December 2, 2021 Share Posted December 2, 2021 The bar connecting the pedal hangers to the roll bars was magnetic in the ERides video but in the Ecodrift is an alloy. Quote Link to comment Share on other sites More sharing options...
DavidB Posted December 3, 2021 Share Posted December 3, 2021 On 12/2/2021 at 10:19 AM, Kekafuch said: The bar connecting the pedal hangers to the roll bars was magnetic in the ERides video but in the Ecodrift is an alloy. Afeez/Kevin had the first one out of China. My guess it was a preproduction prototype with the steel plate cross beam and they were still sorting the cast alloy ones from the foundry. 1 Quote Link to comment Share on other sites More sharing options...
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