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This is an Instructable on how to build an electric longboard/skateboard out of 3D-printed components as well as off-the-shelf RC components & open source software/hardware.

The drivetrain (motor mount and idler system) is fully 3D-printed and uses various screws, bearings, nuts and bolts to ensure that there is no flex in the plastic components.

This board can reach speeds of up to 42 km/h and has a range of over 16 km. The average pace of daily rides is around 15 - 20 km/h. It weighs around 8 kgs.

I have designed the idler system so that there will be no belt skipping even during hard braking, which is important for safety. Speaking of safety, remember to use Loctite 243 on ALL screws as well as Nylock nuts to prevent anything from coming loose due to vibrations. Also, ALWAYS wear a helmet while riding and use common sense while on the road.

There are a lot of ways to build an electric longboard/skateboard, different trucks, wheel size, gear ratios, motor sizes, speed controllers etc. but I will only be covering what I used for my build. All of the components were designed using Fusion 360.

Step 1: What You'll Need

Let's start with the tools:

  1. Variable Wrench
  2. Pliers
  3. Hex Wrenches
  4. Wire Cutter
  5. Wire Stripper/ Knife
  6. Skateboard T-tool
  7. Phillips Screwdriver
  8. Hammer/ Rubber Mallet
  9. Soldering Iron

Let's break the components down into three groups

Longboard Components:

  1. Top Mount Deck - Has more clearance
  2. Trucks - I used RAM Trucks, the motor mount is designed specifically for these trucks
  3. 90mm 78a ABEC Flywheels or clones
  4. Riser Pads - Increases clearance for the large wheels and motor

Mechanical Components:

  1. 4 x M8 x 20 mm Set Screws
  2. 4 x M8 Nylock Nuts
  3. 4 x M5 Washers with an outer diameter <= 20 mm
  4. 1x M4 x 16 mm Machine Screw
  5. 3 x M4 x 20 mm Machine Screws
  6. 2 x M10 x 130 mm Hex Bolts
  7. 2 x M10 Nylock Nuts
  8. 2 x M5 x 34 mm Hex Bolts
  9. 6 x M5 x 73 mm Socket Screws
  10. 8 x M5 Nylock Nuts
  11. 4 x 5X11X5ZZ (685ZZ) Bearings
  12. 3 x M5 x 16 mm Machine Screws
  13. HTD Pitch 5, 9 mm wide, 275 mm long Timing Belt
  14. HTD Pitch 5, 9 mm wide 20 Teeth Steel Pulley
  15. 2-Component Epoxy
  16. Industrial Grade Velcro with Double Sided Tape
  17. Loctite 248 for Screws
  18. Optional: Loctite 648 for Pulley (Keyway at pulley is recommended)
  19. 3D-Printed Motor Mount (File)
  20. 3D-Printed Motor Mount Support (File)
  21. 3D-Printed Idler System (File)
  22. 3D-Printed Wheel Gear (File)
  23. Optional: 3D-Printed Component Housing (File)
  24. Optional: 3D-Printed Headlight Mount (File)

Electrical Components:

  1. 2 x 4S 30C 5000 mAh Lithium-Polymer Batteries - Any battery from 4S to 10S will do, rule of thumb is 10 Wh per km range
  2. 190 kV 6374 Brushless DC Motor - 63 mm in diameter, 74 mm long
  3. Vedder's ESC
  4. 2 Channel 2.4 GHz Transmitter, Receiver
  5. 1 meter 10 AWG Wires
  6. 4 x XT90 Male and Female Connectors
  7. Heat Shrink
<p>What other ESC would you use besides the Vedder's ESC?</p><p>Good Instructable BTW.</p>
<p>Thanks. I can't recommend any specific ESCs here because I do not have much riding experiance with them. RC ESCs were mostly built for RC cars so there might be some limitations. I would recommend the forum http://www.electric-skateboard.builders to look for reports from people who have actually used RC ESCs. Good luck.</p>
<p>Very nice instructable and it is well written to.</p><p>I don't have access to 3d printing and many stuffs you describe here, but love to read it. keep it up man. n thanks for sharing.</p>
<p>Thank you for your kind words. If you do not have a 3D-printer you could try using 3dHubs to look for printers near your area. I see that there are a lot of hubs in India and the nearest hub to your city is around 200 km away. They would then send you your parts by post. Check out the prices to see if it fits your budget. Other than that you could look into some Prusa clones which are quite affordable. A well built DIY printer would cost around 300 USD using open source firmware.</p>
Do you have video of this in use?
<p>There is a very short ride video posted above (It's difficult to hold a camera with the remote in the other hand). But I am planning to shoot some clips with a friend. Will post it here then.</p>
<p>Can you estimate the cost to build that thing? Thank you!!!</p>
<p>I get this question a lot and always need to do a little explaination. The three most expensive components, is the BLDC motor, VESC and battery. I spent around 400 Euros on those parts. 3.3 kW motor, VESC, 2*super flat 4S LiPos. The price range for each of those components varies significantly if you choose a 1.2 kW motor, normal RC ESC, single 4S 5000 mAh battery, it can be well under 200 Euros.</p>
<p>Love it! I'll be adding those stls to my to-print list. Keep up the awesome work!</p>
<p>Thanks for the support.</p>
<p>Nice job! I hope ti do something like this one day.. What about distance and speed? In case of no battery can it ride as normally? Thanks</p>
<p>This board can reach speeds of up to 42 km/h and has a range of over 16 km. The average pace of daily rides is around 15 - 20 km/h.</p><p>In the case of an empty battery, you can still push the board but of course there is some resistance from the motor.</p>
<p>Excellent Instructable, keep up!</p>
<p>Thank you very much, I will!</p>
<p>That looks like it would be so much fun to have. Thank you so much for sharing the design. </p>
<p>Thank you very much! It is incredibly fun and is now my main mode of transportation around the city.</p>

About This Instructable

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Bio: DIY enthusiast and thankful for all things open source.
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