First test piece tried out with bad luck. As you can see from the pictures i tried to meld the abs outside and it was -3 celsius. With that fire heater I was only able to melt about 400mm soft enough. So when I placed that plastic sheet to my vacuum forming table I did not get no suction because the abs did not touch the table. Also the "tool" was sucted inside with regular 1400 watt Volta vacuum cleaner.
DIY vacuum forming heater.JPG - Windows Live
Next stage is to build proper heating system that I will get that full abs sheet soft and try again...