DIY Boosted inspired electric longboard

Lightweight / Folding / Portable EVs - seats optional
randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 05 2015 11:57pm

How much thread was left on hangers with 6mm spacers?

Those motor mounts are the best i have seen here!, would sell very well ?

Are you going to try the VESC's

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 06 2015 4:16am

randyc1 wrote:How much thread was left on hangers with 6mm spacers?

Those motor mounts are the best i have seen here!, would sell very well ?

Are you going to try the VESC's
Let's say that just enough :P Axle nut plastic locking ring touches thread end and the end of axle is flush fitted with wheel nut. Also added thread locker to prevent it from getting loose, seems to work fine. I must admit that there is one problem with the mounts support bar, leaves tend to get stuck there (I left about 1mm clearance). I got few similar questions about mounts, but unfortunately for this moment I don't have time and resources to start any kind of production.

Two VESC should be on their way to me to be used in Electro-Trampa build.

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okp   100 kW

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by okp » Dec 06 2015 7:16am

Hey!

This one is for you :

Image

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 06 2015 7:50am

okp wrote:Hey!

This one is for you :

Image

AWWW YOU...! :lol: You're fast, I'm ordering silicon wires and connectors from HK at this moment... and waiting for more parts to come. How fast did You manage to go? :P

nowind   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by nowind » Dec 06 2015 10:47am

Nice Cedric.
Happy to see you driving ... wheeling (-;

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okp   100 kW

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by okp » Dec 06 2015 11:22am

I confirm that Jens has impressive thighs ... he makes it look so easy on video... even the lightest setup require significant muscles to make his tricks !

randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 13 2015 10:12pm

Can i ask Squad how you were able to get the the (Motor Mount + 15mm Pulley) to fit on Motor Shaft ?

How thick is the Motor Mount where motor is attached ?, ... how many mm where left for Pulley ??

...I Want to use a 15mm belt on a single motor skateboard, but i heard Sk3 6364 shaft is only 27mm long

Thanks!

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 14 2015 2:37am

randyc1 wrote:Can i ask Squad how you were able to get the the (Motor Mount + 15mm Pulley) to fit on Motor Shaft ?

How thick is the Motor Mount where motor is attached ?, ... how many mm where left for Pulley ??

...I Want to use a 15mm belt on a single motor skateboard, but i heard Sk3 6364 shaft is only 27mm long

Thanks!
Motor mounting plate is 3mm thick and made out hardened stainless steel, pulley for 15mm belt is about 20mm long so, as You can see it should fit on 27mm long shaft.
Last edited by Squad on Dec 15 2015 2:37pm, edited 1 time in total.

randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 14 2015 5:44pm

Squad wrote:
randyc1 wrote:Can i ask Squad how you were able to get the the (Motor Mount + 15mm Pulley) to fit on Motor Shaft ?

How thick is the Motor Mount where motor is attached ?, ... how many mm where left for Pulley ??

...I Want to use a 15mm belt on a single motor skateboard, but i heard Sk3 6364 shaft is only 27mm long

Thanks!
Motor mounting plate is 3mm thick and made out hardened stainless steel, pulley for 15mm bełt is about 20mm long so, as You can see it should fit on 27mm long shaft.[/quote

Thank you Squad !

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 15 2015 4:40pm

Motors arrived! 170 KV, 12S capable 80A max current.

Image
Last edited by Squad on Dec 15 2015 5:46pm, edited 1 time in total.

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okp   100 kW

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by okp » Dec 15 2015 4:52pm

great! which motor brand is this ? never seen it

you almost got everything ?

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 15 2015 5:24pm

okp wrote:great! which motor brand is this ? never seen it

you almost got everything ?
EMAX, I ordered from aliexpress. Almost everything :wink: Now I need to make draft of motor mount, I guess something similiar to Your E-TOXX mount would be awesome. I'm still waiting for VESCs, sprockets, chain and underwater kinetics cases. I think I'll start the project somewhere arround christmas.

randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 19 2015 10:18am

Hey squad!

Can you please tell me where you got your motor Gear?. I see it is hubless ,where are the set srews ?...under belt section ?

Motor shaft on Turnigy 6364 is only 27mm long ánd to fit a 15mm wide gear I need a hubless motor gear like yours .

Thank you !

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 19 2015 10:59am

randyc1 wrote:Hey squad!

Can you please tell me where you got your motor Gear?. I see it is hubless ,where are the set srews ?...under belt section ?

Motor shaft on Turnigy 6364 is only 27mm long ánd to fit a 15mm wide gear I need a hubless motor gear like yours .

Thank you !
Actually the motor pulley had hub but I turned it off on a lathe. , the set screw is located under belt section. I bought is as pre-component, so it had to be machined anyway. It looked like the one in the attachment before my modifications.
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randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 19 2015 11:57am

Thanks Squad I really appreciate !!

So you machined the Hub off , then you just drilled & threaded straight through the the pulley to put 2 m4 set screws,... 1 on each side?

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 19 2015 12:10pm

randyc1 wrote:Thanks Squad I really appreciate !!

So you machined the Hub off , then you just drilled & threaded straight through the the pulley to put 2 m4 set screws,... 1 on each side?
First I bored pulley to 8mm to fit nicely on the shaft, then machined keyway (motor shaft has also milled keyway), and drilled, tapped for one m4 set-screw (on the opposite side of keyway, motor shaft has also milled flat spot)

randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 19 2015 12:33pm

Squad wrote:
randyc1 wrote:Thanks Squad I really appreciate !!

So you machined the Hub off , then you just drilled & threaded straight through the the pulley to put 2 m4 set screws,... 1 on each side?
First I bored pulley to 8mm to fit nicely on the shaft, then machined keyway (motor shaft has also milled keyway), and drilled, tapped for one m4 set-screw (on the opposite side of keyway, motor shaft has also milled flat spot)

Thanks for helping me with your experience !!

Since i have no keyway , I think i will dremel 2 flat spots (1on each side),..drill straight through pulley, tap m4 and put 1 set screw on each side.

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 19 2015 2:11pm

randyc1 wrote:Since i have no keyway , I think i will dremel 2 flat spots (1on each side),..drill straight through pulley, tap m4 and put 1 set screw on each side.
I think that should do the trick, a lot of people on ES use only set screw + flat spot on shaft to mount pulley.

randyc1   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by randyc1 » Dec 20 2015 11:18am

Squad wrote:
randyc1 wrote:Since i have no keyway , I think i will dremel 2 flat spots (1on each side),..drill straight through pulley, tap m4 and put 1 set screw on each side.
I think that should do the trick, a lot of people on ES use only set screw + flat spot on shaft to mount pulley.
Thanks again!

loganrhyne   1 µW

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by loganrhyne » Dec 24 2015 11:52am

Could you post a bit of detail about the plug-in ports (sorry one of the things I don't know is what they're actually called!) that you used for the power and balance cables and how you wired them up? I haven't seen anybody else with such a clean look on their charging setup.

Lots of inspiration in your build for upping the quality of finish; thanks!

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 24 2015 5:32pm

loganrhyne wrote:Could you post a bit of detail about the plug-in ports (sorry one of the things I don't know is what they're actually called!) that you used for the power and balance cables and how you wired them up? I haven't seen anybody else with such a clean look on their charging setup.

Lots of inspiration in your build for upping the quality of finish; thanks!
First of all marry christmas, and thanks! Connectors and ports are Binder series 680. They're not cheap but I wanted something nice looking. Balancing cable is ended with normal JST balancing connector, charging one with normal bullet connectors.

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by loganrhyne » Dec 25 2015 11:20pm

Merry Christmas! And thanks for the details; never would have tracked those down. I'm completely new to working with electronics, so apologies for the follow-up questions; I expect they're obvious to those who have any kind of experience:

1) For the balance cable I imagine you need a 7-way plug and socket: http://www.ebay.com/itm/Binder-7-pin-Co ... dgeZdxMt_Q

2) What kind of cable is the single round cable for the charger -> balance plug? I assume it is a 7-way cable (i.e. seven separate internal wires) that you splice to a JST connector on the charger size, but I can't seem to find one?

3) For the power cable did you just use 2 of the connections on a 3-way 680 series plug/socket (seems like the 3-way is the fewest connections available): http://www.ebay.com/itm/Binder-3-pin-Co ... jwWpMNI6pg

4) Where did you find the screw-in caps/covers for the sockets?

Again, sorry for the ignorant questions, but I figure I'd like to learn to do the electronics cleanly and yours seems like a great example to work from.

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 26 2015 9:12am

For balancing if You plan to go 7S, like me, You need 8-way plug and socket (if 8S-> 9-way, etc...), so the balancing cable is 8-way cable too, the jst balancing connector is also 8 pin JST-HX female one. For charging I bought 2-way plug and socket, it was available when I ordered (http://www.distrelec.biz). The screw in caps were not right ones, the thread was different, caps had m16x1,5 thread, the socket M16x0,75, I lost one riding and don't use caps any more, BUT if You'll look at binder offer, they have protective caps, screw in or just plug ones.

Good luck!

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by kenf4345 » Dec 27 2015 2:49pm

I like the idea of onboard charging. I'm planning on running a 6S set up with total of 4 x 3S 5000mAh packs (2in series x 2 and then running the packs in parallel. Hard to explain. The result is 10000Mah and 6S voltage. ) My questions is, if i want to have on board charging and all the battery packs spliced into a parallel charging and balancing board, will the fact that half the packs are in series mess this idea up. Squad how did you wire yours?

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Squad   100 W

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Re: DIY Electro-Trampa and boosted inspired electric longboa

Post by Squad » Dec 27 2015 7:08pm

kenf4345 wrote:I like the idea of onboard charging. I'm planning on running a 6S set up with total of 4 x 3S 5000mAh packs (2in series x 2 and then running the packs in parallel. Hard to explain. The result is 10000Mah and 6S voltage. ) My questions is, if i want to have on board charging and all the battery packs spliced into a parallel charging and balancing board, will the fact that half the packs are in series mess this idea up. Squad how did you wire yours?
You'll get 6S2P battery pack config, check this up ->http://scriptasylum.com/rc_speed/lipo.html I think it will explain everything.

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