I just did my maiden run on my first board, built more or less from scratch. Wow, these things are fun! On flat ground, I’ve gotten it to 18 mph and it had more to go. I’m heavy and live on a hill so it’s geared low. With 6s 10Ah batt, it weighs 17 lbs. I still need a component enclosure, a spark-less switch, battery alarms, and to do some better wire routing, but so far I’m very happy with it. Using a lipo charger I already had and some scrap metal and hardware I already had, I spent less than $600. I’m sure some of my components will need to be upgraded to better ones, but I felt like these were good to get me started. I used mostly hand tools to make it (except for a drill press and a porta-band saw–converted to upright). One of the other issues I realized is that the rc car ESCs I’m using are quite loud, especially when braking. I have a question as to whether the VESC is quieter than a hobby ESC? I know it’s better in many other ways and look forward to upgrading soon, but noise definitely affects quality of the ride.
Thanks for checking it out. Details bellow. Joren
On an ebay 42" longboard with 90mm knockoff flywheels, it’s dual diagonal motors. Turnigy Aerodrive SK3 - 5065-275kv with trackstar2 150a ESCs. 2x 6s 5Ah Lipos and a Wiiciever powering it.
The gears are HTD 5m 12T smaller pulley from robotdigg and a polycarbonate 50T large pulley from sdpsi. A couple cheap skate bearings work as an idler bearing so more teeth grab on the small pulley as well as tensioning the belt. Belts from polybelts.
The motor mount is DIY’d with scraps of aluminum from the shop (1/2" for the clamp, 1/8" for the motor and idler bearing mount). It needs to be cleaned up and painted or anodized, but I couldn’t wait to try it out. It feels pretty solid, although I will probably go to welded mounts next time, now that I better understand what angle they need to be welded.
This is how I clamped the truck: Using a bi-metal hole saw, I rounded the truck for the mount to clamp. I added 2 set-screws to the clamp to prevent turning. Unfortunately, the clamp was a little too big so I used a small strip of sticky backed sandpaper wrapped around the truck to allow the motor mount to clamp properly. So far it’s rock solid, but I’m keeping a close eye on it.
Links to the major components: batt https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16207 motor https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18176 esc https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=60530 small pulley http://www.robotdigg.com/product/527 belt http://shop.polybelt.com/260-5m-09-Rubber-Timing-Belt-52-Tooth-B260-5M-09BNG.htm large pulley http://www.sdp-si.com/eStore/Catalog/PartNumber/A%206L25M050SF0908 board and trucks http://www.ebay.com/itm/New-professional-Through-9-X-42-Longboard-THRU-Skateboard-Complete-free-/171634924137?hash=item27f63d1a69 90mm Wheels http://www.ebay.com/itm/Blank-Pro-90mm-Multiple-Color-Longboard-Flywheels-ABEC-7-Bearing-Spacers-/141727706244?var=&hash=item20ffa12c84 WIIceiver Controller http://austindavid.com/jm3/index.php/hardware/3-wiiceiver wireless nunchuck http://www.amazon.com/Wii-Kama-Wireless-Controller-Colours-Nintendo/dp/B0012R58LG/ref=sr_1_1?ie=UTF8&qid=1443984640&sr=8-1&keywords=wireless+nunchuck