so i needed to bend some .188 wall DOM. i asked here a month or so ago if anyone had any sugestions on how to bend heavy wall and got no replies. I have a M-TECH model NE5 manual bender. when i called M-TECH SUPPLY to ask if it would bend .188 wal DOM, the guy said "dude, do you know the tensil strength of DOM? that stuff is very strong. and .188 wall, thats thick stuff." so I asked what was the max wall? he said .154 max. and thats going to be tough and you still might cause some damage to the drive pins. said i could use stronger pins but then the bending arms might start bending. then the guy suggested putting some heat to the tube. so that is the route I took. my bud and I heated the tube to what we thought was hot enough and nothing, could not budge it. i could tell the bender was under alot of load. so we re-heated the tube to where it just started to turn red, then we went for it. got about 25 deg worth of bend and it was going easy. then my bud shouts "THE FOLLOWER BLOCK IS MELTING!" the aluminum inserts on the follower block melted and were dripping hot aluminum on the garage floor. so that killed our progress dead in our tracks. i had to order a new set so i had good dimentions to copy from. so i came up with machining 4140 cromoly follower blocks that im gonna heat treat, then titanium nitride coat them. this will aid in minimizing the friction and allow the tube to slide through the follower blocks much easier. i just have to machine the second blocks 2.0 radius them heat treat them. here are the blocks, we will see how they work when im done.