Crumping and welding front parts Failur version

I crumped them on the drawing on paper.

They are bended to fit the drawing.
Then tac welding !

more one.

It's too hard to weld rod and recutanglars.
I had many mistakes.

 Welding.

So so. I need having more practices.
The tac welding is broken. I tried it again.

 However, These tac welding were broken, too. I welded each parts.

 How difficult. It's easy to make hole.

I can't weld well. Unrotunately, after welding, I noticed the Angle of each parts were smaller. I did griding too much then the thickness is thinner.
So I need making new one.