600W Electric Trike

Step 4 Welding the motor mounts to the main frame

For this disassemble the lovely chain drivetrain you've created.

For this you need:
- MIG welder
- Bench vice
- Right angled jig, this is comprised of two angle iron pieces fixed at a right angle
- G Clamps
- Combination Square

1. Position the main frame and drivetrain mount into the bench vice with the right angled welding jig, use the G clamps for clamping the jig to the frame and motor mounts.
2. Check for squareness with combination square
3. Tack weld the drivetrain mount then check for squareness with combination square. If not square use large hammer to correct
4. Fully weld each drivetrain mount (weld on the inside of the frame and the outside but not the top
5. After welding check again with the combination square. You'll notice that because of the heating process of the welding each motor mount will bend inwards by about 3-5 degrees. You can just get a nylon mallet and hit the motor mounts until they are square!

So check, check, check is what I say!

I'm sorry there are no pics for this stage, I had little time to do each stage as it was in school time with classes going on at the same time at some points!