sdtripper2 wrote:
Doug A novice for sure could use that information so as not to make a heck of a
mess on all that aluminum.
Recap of your process:It does take two to be there one blowing and the other cutting.
It is a driveway with and insulation ride and blankets and ply on top for
knees.
Taping the line so as not to have scratches while cutting with a carbide
blade in a circular saw.
Sounds like a bit of work but if it saves you the 1.5 times the price of a
5'x12' stock sheets and you would have had to bought two.
Now one more question... if you please: What was the different treatment on the surface, which covered up any
scratches/gouges that you used

Steve....I've done it by myself, just carry the blower in the left hand when you cut. It didn't take all that long to do, probably 30 min. But some of the materials I have on hand all the time. I use a thick sheet of foam all the time to flop materials on when I cut them out. I don't have to leave them hanging out in the open, unsupported. I can rout, run a circular saw, jig etc...without cutting into the table, just adjust the depth accordingly. For a jig saw, I put the blade in the vice and break off 3/4 of an inch, grind it clean and it won't go all the way through the foam. I work by myself all the time, so have to figure out ways to do stuff.
On the exterior treatment. I used 220 grit on a DA sander on the first tear, I used the same grit on a polisher on the 2nd one. It was a variable speed, didn't suck up air like the DA, as it was electric. I just used 1 edge and scuffed it and overlapped them in a fairly consistant pattern. Just do it so that every sq. in. of material is scuffed and overlapping. You need to work your way down the panel, can't go back and touch up without it showing. If you do, it'll show as an additional layer in that spot. Again, I laid the panel on the foam, covered the working side with a blanket and a sheet of ply so I wouldn't dent it, and just worked my way down the panel. It's not easy stuff to do, but if you want the look, short of coughing up the dough for it, It's an easy way to make something different. The DA sander took about 3 hours to do it all. Of course time was taken out for "shoulder and knee" breaks. The polisher took about 1 hour for approximately the same area. The following photo shows how I cut it, blower is in left hand. doug
