Low Budget Board Build Advice

[tshong]

[Edit: Thanks for all the feedback so far. I'll keep updating the post! 11/20/2015]

Let me start by saying I’m new, but I’ve been reading a ton on this board. Thank you all for your contribution to the community. Thanks to you, I already have a board on order with Ollin and hub motors from Carvon! The lead time (and budget) is high, but i'ts gonna be a beast of a ride.

In the meantime, I wanted to make something on the side to keep myself busy. :wink: As a side project, I wanted to hear the community’s advice on a parts list for a very low budget board. It’s nothing fancy, but I hope my post can introduce the e-skate hobby to a wider audience by keeping the price low. I’d like to make a video, tutorial, and a parts list of where to purchase the parts once it’s all done. It doesn’t have to go fast or far. The goal is just a slow casual ride (no need for 30 mph) and short distance (no need for 15 miles distance).

Here’s what I have so far (click on each item's hyperlink and it'll take you to the actual product):
https://docs.google.com/spreadsheets/d/17jNv-SULDLiPPVIIIF_QkuXGzYnqryrmSLqJPzqTm0g/edit?usp=sharing

Some notes:

- General Range = 4.5 miles
I heard from Chaka (from Ollin) that you can divide the Wh by 10 and that’s approximately the distance by km range. The battery is 5000 mah at 14.8 volts. According to online calculator, this should net 74 Wh. (https://milliamps-watts.appspot.com/). So, according to estimates, approximately 7.4 km or 4.5 miles range right? I’m not looking for anything precise. Just a general guess.

- General Speed = 13.4 mph
According to kkEdlund calculator (https://docs.google.com/spreadsheets/d/1E2IwhmAP52gG5xovH7WG8sp5qsey3iLWZwv_bIKaYUQ/edit#gid=0), a 280Kv motor with 12/36 gear ratio should be able to achieve 13.4 mph.

- General Torque = ???
I can’t find a clear answer to this. I’ve seen someone say low gear ratio means higher torque? If so, then I should choose 12/36 over 16/36 if I want more torque in exchange for lower speed? (BTW, I weigh 150 lbs)

- 60 AMP 12-24 DC Fuse / Switch
I read someone used this as a switch to disconnect the power and also protect the ESC. Seemed like a cheap solution with added safety.

- Voltmeter Panel
Same thing. Saw someone use this as a way to read their battery status. Cheap solution with added utility.

- Save More?
Does anyone see anywhere else I can lower the budget even more?

- Correct More?
Does anyone see a problem? I love wisdom through correction.

 

[lox897]

Those motors have a 40amp esc in them and they are meant for drones not human weight. Others can chime in with this comment. Also you will have to push a bit to get started.

 

[tshong]

Thanks for helping me with feedback!

Yup, I figured I would push. I saw a few builds where they had to do that with weaker motors.

Sorry for my ignorance, but aren't all these RC motors made for small drones, planes, and cars? How much amps do you need for human weight? (I'm not antagonizing btw, I just want to learn and help more people in the future)

Those motors have a 40amp esc in them and they are meant for drones not human weight. Others can chime in with this comment. Also you will have to push a bit to get started.

 

[serg10]

Those motors have a 40amp esc in them and they are meant for drones not human weight. Others can chime in with this comment. Also you will have to push a bit to get started.

Hes right, this motor is rated at 300 Watts. Most motors we use for the boards are about 1,500 Watts.

One like this works well:
http://www.hobbyking.com/hobbyking/store/__18175__Turnigy_Aerodrive_SK3_5055_280kv_Brushless_Outrunner_Motor.html

 

[tshong]

I see... I'll do some editing now. Thanks for the feedback!!!

Those motors have a 40amp esc in them and they are meant for drones not human weight. Others can chime in with this comment. Also you will have to push a bit to get started.

Hes right, this motor is rated at 300 Watts. Most motors we use for the boards are about 1,500 Watts.

One like this works well:
http://www.hobbyking.com/hobbyking/store/__18175__Turnigy_Aerodrive_SK3_5055_280kv_Brushless_Outrunner_Motor.html

 

[mccloed]

Also looks like your missing a charger from your list.

 

[Vulthor]

Hi! From my own experience my advice for make a reliable and on a budget board.

Save money on the deck, the wheels and the trucks, second hand for the trucks, no brand/clones for deck and wheels, but you can also go to a local skateshop for price estimation and compare to second hand with ship.
Go on single setup obviously, but go with good product and all from the same place and as plug and play as possible because tools add price.

Save some money other months for better product instead go speed and cheap.

Go with all in one battery/powerswitch/BMS (like space cell Enertion), more user friendly for charging, and price is near the same as if you buy separately considering the tools, the charger and connector, and finally the cost of separated ship.

At the moment if you live in Australia take a look at Enertion for a single setup with space cell and Vesc on 63mm motors.

If you live in US, wait a bit for torqueboards new battery pack,new 63mm motor, and modified motormount, and go Vesc from Chaka (ollinboard).

If you live in Europe you can go with a combo aliendrive (new products incoming), alien power for battery and motors, Vesc is a bit harder to say, there is a new seller from Germany but didn't know about quality at this moment.

Contact those sellers by mail for any advice, most of them are really responsive and helpful.

That's all for me

 

[tshong]

Hi! From my own experience my advice for make a reliable and on a budget board.

Save money on the deck, the wheels and the trucks, second hand for the trucks, no brand/clones for deck and wheels, but you can also go to a local skateshop for price estimation and compare to second hand with ship.
Go on single setup obviously, but go with good product and all from the same place and as plug and play as possible because tools add price.

Save some money other months for better product instead go speed and cheap.

Go with all in one battery/powerswitch/BMS (like space cell Enertion), more user friendly for charging, and price is near the same as if you buy separately considering the tools, the charger and connector, and finally the cost of separated ship.

At the moment if you live in Australia take a look at Enertion for a single setup with space cell and Vesc on 63mm motors.

If you live in US, wait a bit for torqueboards new battery pack,new 63mm motor, and modified motormount, and go Vesc from Chaka (ollinboard).

If you live in Europe you can go with a combo aliendrive (new products incoming), alien power for battery and motors, Vesc is a bit harder to say, there is a new seller from Germany but didn't know about quality at this moment.

Contact those sellers by mail for any advice, most of them are really responsive and helpful.

That's all for me

Yah. As I was pricing it out myself, maybe you are right. I should lean towards building one with "chunks" of packages from each vendor. I'll modify my link when I get the chance again. Thanks.