FOCBOX UNITY $299 | R-SPEC DRIVE KIT $588

Daily | globe catalina | sk3 | custom mount | 6s lipo


#1

Hello,

I’m a student Engineering in Ghent, Belgium. To get to school everyday i wanted to try something different. I decided to build an E-board. The idea came long ago and did some testing but never really worked it out. But this week I don’t have class and decided to start the build. First off, the specs:

SPECS/PARTS

  • sk3 6354 245kV motor
  • 5000 mAh 6S lipo
  • ezrun PRO 150A

DRIVE TRAIN

In the local shop they didn’t have any HTD belts/pulleys in stock so i went with XL-type belts and pulleys 9mm width. They didn’t have aluminum ones so i will order some online. The setup is 15T-36T. The wheels are 69mm but plan on getting ABEC clones 90 (?) mm. A friend of mine had a lathe which i could use to widen the pulley hole. I used my drill press as a lathe to get the truck completely round at 15mm.

I’m planning to CNC a custom motor mount at school, but for now i made a quick custom one with aluminum scraps.

FUTURE PLANS

  • Enclosure: i’m thinking about custom fibreglass or maybe vaccuum formed one
  • Charing: adding GX16 plugs for easy charging without opening the case
  • Motor mount: custom CNC aluminum mount at school
  • Pulley: ordering new pulley in aluminum. Has anyone got a CAD model for the ABEC wheels? I want to make spacers and drill holes very precisely at school for a custom sprocketmount, like the diyelectricskateboard style
  • Wheels: ABEC wheels
  • I might go for onboard charing, boosted board style

I’ll probably make a complete new set up, this was some prototyping. I want to make a real clean board

Has anyone used the EZRUN without a fan? I plan on integrating it in the enclosure with the heatsink mounted to the outside, it would work i guess?


Removing FVT 120A ESC Fan?
#2

“Custom Lathe”


#3

Temporary mount, planning on making one with cnc


#4

2 posts were merged into an existing topic: Removing FVT 120A ESC Fan?


#5

https://grabcad.com/library/longboard-wheel

Don’t forget that the core is molded, you can’t have your tolerances to tight.

This is not my drawing, but the description states abec 11


#8

Used a temporary case and make the cable look nice and tidy



#9

On the ezrun i have 8 possibilities for motor timing. What is the effect of low-high timing?


#10

Made a new mount. Only using jigsaw and files


#11

thats a pretty fukin good job for hand tools.
top notch!


#12

I also like your multi purpose drill press. it’s a lathe, its a mill, its a drill press, call now…steak knives!


#13

Really looking to buy a small Mill or lathe :slight_smile:


#14

amazing!! where can i get a tool like that


#15

Just a regular drill press. Bought a milling bit On eBay for 3$


#16

New charger on its way. Just one for my backpack for on the go charging.
http://www.aliexpress.com/item/21-6V-22-2-Li-ion-LiPo-Battery-Charger-25-2V-2-5A-Auto-Stop-Intelligent/32303417016.html


#17

New motor in the post office, TACON 160, will get it tomorrow. Big thanks to @Hummie! He really helped me out on this!


#18

Bought a new deck and got the orangatan kegels. Right now i started On a fiberglass enclosure.

I’m running 6s right now but want to go up. Would adding 3s be good? Or is running uneven Numbers not recommanded. Am i correct to say with higher voltage i use less amps and get a bigger range at the same mAh than with a lower voltage?


#19

Yeah, your right. You should just go 10S or 12S. 2x5S or 2x6S.


#20

@Mathieu That’s right, and you also get more “punch” in acceleration if you need it, and a higher top speed. I use 8S and I my build eats hills. 10S or 12S are more common though.


#21

So 9S is not a good idea? Or will it work just as good


#22

We’ll for 9S. You’ll need odd packs together to get 9S and/or (3) 3S packs for 9S.

It’s easier to unplug only 2 packs so it’s better to go in pairs of 2x cells in series. 4S,6S,8S,10S,12S which would be 2x2S, 2x3S, 2x4S, 2x5S, 2x6S.