champ_49

Glenn West, on 14 Jan 2015 - 11:33 AM, said:

Can't look at bridges and compare to chassis. Bridges you refer to are arched. The arched concept makes it rigid and rigid means strength. The holes is to loose weight. A straight beam with holes loose strength. You will never see a straight support beam with anything larger than a 1/4" threaded hole with a bolt in it. An open hole will be reinforced, the hole weakens the beam.

Thanks for clearing that up Glenn. I worked with mostly round tubing with very little rectangular tubing. I built race cars and that is the limit of my understanding. Why I said, I don't quit grasp that.

Dave

I will state that I have a Heartland Bighorn and had the frame flex issue on it. The warranty was up and I spoke with the company on it and they said bring it in on a Monday by 8:00 am and you will have it back in your hands sometime Friday of that same week and it will be repaired at no cost to you. I set up a date on it and dropped it off on that Monday and I was driving away with it that Friday, at NO cost to me other than getting the trailer to them.

Great service for a non warranty issue as it had expired. Great company to deal with and I also agree on the Lippert thing. I am also a welder and built oval track race cars from the ground up. I would say that they need to figure out ways to start as we call it in the racing industry Xing your frames as that is the most sturdy way to build with steel. Another I also wonder about and we use this also in building race cars is cutting holes in the steel make it stronger. I find that one hard to grasp myself but the concept is stronger steel and lighter weight. Race cars are built the lightest materials possible but yet the strongest way possible. The way I can explain this is look at some bridges on the highways. There is always cut outs in the steel. They do this because its stronger and lighter.

Just my 2 cents worth.

Dave