EZRUN 6S Build log

[Mathieu]

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

Currently i'm using my quadcopter's remote but i plan on getting the pistol grip from hobbyking (http://www.hobbyking.com/hobbyking/store/__44693__Quanum_2_4Ghz_3ch_Pistol_Grip_Tx_Rx_System.html) any experience on this?

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

- Getting a new, smaller remote
- 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

 

[Mathieu]

I set everything up today, programmed the ESC and went for a run. Too bad it was raining all day long. With the bad weather i didn't for full throttle but it has a good amount of power. The belt slips a little when braking hard, i think due to the fact i'm using 9mm width. Maybe i'll go for 15mm.

 

[WeeChumlee]

Hi Mathieu

True DIY, gotta respect that.
I like your "lathe". What did you use to actually remove the metal? Just a file?
Am going to do just the same to my Paris 195 trucks that are just a tad to wide for my mounts. They fit but an extra mm or two off and a perfect round shape will be better.

 

[Mathieu]

Yes u used a file to get to 15,1mm. Then with a belt of 220 grid sand paper i sanded the grooves out and for a smooth finish i ended with a strip of 600 grind sandpaper

 

[Mathieu]

Got up to 30kph for a quick run

Any thoughts on removing the fan from the ezrun 150A esc?

 

[RogerD]

The fan packed up on a friends EZrun and it's made no difference. Esc is mounted outside.