Motorized Sofa Chair aka Lazier Boy
Channel: Scott Blake
Date: 2017-07-01

I motorized a sofa chair! Let me show you how it works. So I don't know how to weld, and I was inspired by Colin Furze's is "no weld go kart." I bolted a bunch of 1 inch square tube together. I prefer electric motors so I got a MY1020 Unite motor. It's important that it's running clockwise. I didn't know this, but counterclockwise runs 23% slower. My chain kept slipping so I made a chain guard. I realized what was more important is to have the alignment between the two sprockets dead on. I've never worked with a #25 chain before, and I don't have the proper tools to break it. I used a center punch, a countersink, and a nail to push the pin out, and break the chain. Then I lost my master link, and was able to use a vise grip to put the pin back in the chain. Another part that I had to do some work on was the sprocket adapter. I had to drill holes on a 2-9/16 inch bolt center diameter to get these two parts to stick together. I got the controller and a lot of the electronics from Electric Scooter Parts. They've been super helpful, and their tech support is really great. This is a six terminal double pole double throw toggle switch for reverse. I think I got this at RadioShack. I got the axle, bearings, rims, and wheels from BMI Karts. An important thing is you got to get the tires mounted on a lawnmower service. This portable mini tire changer does not work. Cut out some custom wheel wells. Found the chair for free. Put some skateboard trucks on the back for wheelies and lowering the trike. I added the Hula doll the other day, and the horn is essential. One last thing is I made this giant headlock that goes through the steering tube. Instead of a star nut, I've actually broken some of those on another trike project. I put this giant rod through the fork basically, and then double nut it on both sides. I got the neon pink frame from Flatout Drift Trikes. Top speed is a little over 20 miles per hour. Perfect for getting around the neighborhood. The safety triangle really makes it safe.

48 Volt 1000 Watt Electric Scooter Motor With Mounting Bracket (MOT-481000B)
48V 1000W Electric Scooter Speed Controller (SPD-481000C)
13 Tooth 10mm Dual D-Bore Sprocket For #25 Chain (SPR-2513C)
80 Tooth Rear Sprocket For #25 Chain (SPR-2580)
Heavy Duty #25 Chain With Master Link (CHN-HD25132)
5" Douglas Polished Aluminum Wheel, 5'' x 2.5'' (675040)
Duro Excelerator Racing Slick HF242, 10 x 4.50 - 5 (AZ7060)
Lightened Aluminum Wheel Rear Hub, 1" Bore (K600230)
Cast Iron Pillow Block with 1'' Bearing (559720)   
Steel Multi-Patterned Sprocket / Brake Hub ,1" Bore (AZ2561)
1" Steel Live Axle 32'' (400032)
48 Volt 10 Amp Hour Lithium Battery

Motor Sprocket 13
Axle Sprocket 80
Miles Per Hour 22.9

Motor Sprocket 11
Axle Sprocket 65
Miles Per Hour 23.8

Motor Sprocket 11
Axle Sprocket 55
Miles Per Hour 28.2

Electric Scooter Parts - https://ElectricScooterParts.com
Flatout Drift Trikes - http://www.FlatoutDriftTrikes.com
BMI Karts - http://www.BMIKarts.com
EBikeKit - https://www.EBikeKit.com

Colin Furze's No Weld Go Kart
https://www.youtube.com/watch?v=vuRV-uXGy1w

Chair Lyf Electric Skateboard
https://www.youtube.com/watch?v=hdnVk2VddC8