Crawler Tube Chassis - In Depth How-to
Bender I use: http://amzn.to/2mAXQqX
Cheap Jewelers Torch: http://amzn.to/2lPWIkZ
Nicer Jewelers Torch: http://amzn.to/2m3wYCc
TIG Welder: http://amzn.to/2m3xwIg
This video give you a look into the full process involved in how I make a custom chassis for one of my crawlers. I also go into the difference in construction styles.