Electric Wheelbarrow - Amazing!

Read all this before starting, check out all links, watch all videos, and see if its a good fit as a project for you!
DISCLAIMER: We tried our best to document as thoroughly as possible. That said, expect gaps in detail, problem solving you'll need to do on your own, etc. Consider this a framework and inspiration. You'll need to do the hard work! Don't order parts or start the build until you read/watch/think it all through and feel confident about your abilities...
   • Electric Wheelbarrow - Amazing!   - Overview Video
   • Electric Wheelbarrow - Build part 1 - Intr...   - Intro to build, parts, and work flow
   • Electric Wheelbarrow - Build part 2 - Modi...   - Modifying charger and wiring
   • Electric Wheelbarrow - Build part 3 - Moun...   - Mounting chainring and motor

https://electricbike-blog.com/2018/09...
Article Karl put together that documents his whole build. Important to read all through this to understand the main points of building. Technical questions and discussions should be posted on this forum

   / @electric-fatbike   - Electric Bike Blog youtube channel. Karl documents and shares his experiments on this youtube channel. Definitely worth subscribing!!!

Parts/resources used in the build (you will need additional bits here or there, like tap screws, wire ties, tapes, etc… Consider this list as some core/specific elements to be sure you have and expect to need to track down some other bits as you go):

Bolts/nuts for mounting chain ring onto wheel and mounting motor onto wheelbarrow frame:
Zinc 4" long 3/8" bolts qty 7 (get 10 to be on the safe side!)
These are to mount the chainring to wheel
Zinc 3.5” long 3/8” bolts qty 2 - These are to mount motor to wheelbarrow frame
3/8” Nylon locknut Zinc qty 10
3/8” Fender washer zinc qty 10-20
You may need more as spacers here or there, but 10 is bare minimum
Steel tube that can slide over the bolts with very little play (18” long or longer, it will be cut down later. Bring bolts to the tube and test fit for snug fit with a tiny bit of play)

Electric Bike Kit Motor we used:
https://lunacycle.com/cyclone-mid-dri...
This is insanely powerful, you can quite possibly use smaller/used/alternative kits if you don’t plan on having incredible demands on the wheelbarrow
You can choose basic/default options, and Standard Square Tapered 100mm BB
We went with the ‘ORO right thumb throttle’ option for $20 for throttle, feels nicer…

Wheelbarrow used:
https://www.homedepot.com/p/True-Temp...
Using a new wheelbarrow seems to make sense for this build, and a flat free tire and very sturdy frame is worth it! A single wheel design is the way to go.

Battery/Charger:
We used the Greenworks 80V 2AH battery and charger as our power source (because I had it already and an extra charger). Karl recommends using EGO 56V systems. You’ll want a working battery, one working charger, and another ‘sacrificial’ charger to take apart and mount on the wheelbarrow (can be a broken charger).

Additional resources:
Having multiple options of chainring can be helpful. We ended up using a 5 hole chainring that fit our situation well. Connecting with a bike shop or bike person to see what they have could be good.
Chain for bike and tools to modify chain
Torx security bits for charger modification
Electrical tools/multimeter/soldering iron/heat shrink tubing/etc…
Drill/bits/drivers, screwdrivers, pliers, vice grips… A nice assortment of all the basic shop tools…

NOTE:
Consider all these resources as a framework and place to start on your own build. We missed some parts of the filming, we made some mistakes we adjusted on our own, etc. We tried our best to share as much of the build as possible but you need to fill in your own blanks and do your own problem solving here or there.
If you don't feel 100% confident in how you may approach this project or if it feels safe, reasonable, within your scope... don't do it! OR, share all this with someone who has deeper experience and make it a team project, even better!
We cannot be held accountable for damaged materials, tools, bodies for those who attempt this. Don't try this at home!