Just received the first PCBs I made of my precharge Antispark. Will solder them and do some intensive testing next week this should be very nice.
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Nice. Love what I’m seeing here dude!
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I have a few more questions. Thank you in advance!
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Isn’t it better to print the battery/VESC case with TPU instead? It’s more durable and it can flex when the board flexes.
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I already have a 1000W 12V server PSU. Should I get a voltage booster like below and rely on BMS to balance charge the battery pack?
https://www.amazon.com/dp/B00E8D7XYG/?coliid=I3MVENO2EUVXXT&colid=2NAX0GX2GD9J1&psc=0&ref_=lv_ov_lig_dp_it
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Do I need to buy LONGBOARD SHOCKPAD RISERS 3MM ?
https:///products/longboard-shockpad-risers-3mm?variant=712549924887>
I’m totally building this board. I got more questions for you @Pryside . I wish you would update the post with more details. That would be nice to share the complete part list.
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Is 60 AMP enough for BMS? Should I buy one with higher or lower current?
I found a smaller version that supports 20A and found another with 100A.
https://www.lithiumbatterypcb.com/product/13s-48v-li-ion-battery-pcb-board-54-6v-lithium-bms-with-60a-discharge-current-for-electric-motorcycle-and-e-scooter-protection-2-2-3-2-2-2-2-2/
This question was answered and I went with the 60A BMS:
https://www.electric-skateboard.builders/t/noob-question-thread-ask-your-questions-here/9559/6937?u=farnamweb
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Are you using the following motor mount ? Is there a cheaper alternative?
https:///collections/electric-skateboard-motor-mounts/products/single-bolt-on-motor-mount-set-only-black
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What is the belt length? 265?
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I can buy LG HG2 for $3.5/cell. Same capacity and extra 5 AMPs ( 20A) . Should I get HG2 instead?
This was answered here: https://www.electric-skateboard.builders/t/noob-question-thread-ask-your-questions-here/9559/6950?u=farnamweb
Will buy 30Q
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Has anyone modified the code so it will work with the “TTGO LORA32 868/915Mhz ESP32” 128x64 screen? I’m trying to build the Firefly nano remote but I would love to have features like an Odometer and cruise control on it.
I’m using an I2C 128x64 Oled. Not ready to share yet tho. Never tested.
Can you send gerber files? Thanks (What is that 8 pin for? next to Q3…) I guess 3 pin Mosfet could be used right?
just use another wirewound resistor like r6, should be fine, with a quite high power rating. Dont really remember wich one I picked and on my PCB there will be some changes and a quite different precharge fet and resistor to save space.
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Will publish all Antispark stuff very soon
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Thanks man
I got this mount and belt . The mount has an idler which is interesting . The seller calculated the belt length for me. It’s 320
@matiller helped me find the resistor
https://www.mouser.com/ProductDetail/Ohmite/TUW5J1R0E?qs=sGAEpiMZZMtbXrIkmrvidMPY4i6h3AHP%2BV%2BE2e384xE%3D
I’m way to excited to finish the board. Do these changes affect the performance of the board or are they just saving space?
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What are your VESC settings for breaking?
putting a tvs so high up there will destroy its purpose, most transcients wont even reach the caps since you have some inductance from the wires. Put it directly on the pcb as in noi’s picture
-75Amps on the Phases and -10A on the battery are my max settings. May seem high but again pulsed this is perfectly acceptable. Safety is more important then getting 2 more cycles out of your battery.
is it possible to buy a anti spark from you? would love to build your board as well