Trampa 75/300 VESC for Tow Boogie

efoils – Electric Hydrofoil Surfboards
1

Cheers everyone,
I’m following Valhalla’s tow boogie build. Such a cool guy who has helped me understand so much. I have also been combing over flight junkie’s build info. The more I read the more questions pop up. So sorry if they are minuscule.

  1. The closed loop connector on the VESC. Did I screw up and miss seeing it in the box from Trampaboards? What exactly is it called? Flight junkie
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    mentioned that you need to buy JST 2.0 connectors back when he first got his. Is it used only when programming the VESC on a laptop?
  2. I’ve tried to educate myself on soldering so I can connect the battery and phase wires up. What exactly does the soldering job look like under the heat shrink in Valhalla’s and Flightjunkies aluminum box setup?
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    I could only find one photo in my search that shows phase wires soldered.
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Thanks so much! Hope I don’t blow myself up with those LIPO batteries!

2

So that closed loop should be in the box. If not you can make your own. For what is under that heat shrink its all 4 wires soldered together. So as for how I did it;

  1. Take the 8awg wire and strip about 3/4 of an inch of insulation off.
  2. Do the same for the 3 phase wires.
  3. Tape the 3 Phase wires together so its like a Triangle.
  4. Put the 8 awg wire in the middle of the triangle. A clamp is very useful to hold it all together.
  5. Solder one side at a time rotating as you go. Make sure it the end of the phase wire at the VESC end doesn’t get exorbitantly hot. Its helpful to have a good solder iron or even a small torch. If its too much heat just let it cool for a bit.
  6. Rotate the 4 wires and keep soldering as you go. Keep it clean and make sure all three phase wires have a good connection to the 8 awg wire. If not, redo it.
  7. Let it cool and add conformal coating’s. 2-3 applications
  8. Cover with insulation.
3

Thanks! I finally found the closed loop…on the Trampa website for 1 euro …but 76 euros to ship! I’ll have to make one. Are these the connectors to use?

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4

Yep those are the ones. Here is a kit.

750 Pcs 2.0mm JST-PHR Connector Kit with 2.0mm Female Pin Header and 2/3/4 Pin Housing Connector Adapter Plug (JST Connector Kit) Amazon.com