That's wonderful news, John, and it saves me the effort of finshing my own set of CAD drawings of the Ares. Several years ago I started a set I was going to give Bob Holman for laser cutting, but they got set to the back of a list of other drawings for free flight and R/C subjects (my Civy Boy 61 drawings alone took me six months to get right), and I never finished them.
I do have a few observations about laser cutting an I-beamer that you have probably already thought about. First, laser cutting allows the tip-rib/jig-plate to be cut precisely to the same height dimension as the fuselage sides and doublers. Since the doublers will be laminated to the sides before wing assembly to the fuselage, it is important that the finished side/doubler edges not be heavily sanded after laminating (to sand away glue squeezeout), or the height dimension will no longer be the same as the tip jig.
The wing spar webs often won't come out straight after cutting them from a sheet, whether you slice or saw them out, so it wouldn't surprise me if many of them deform after laser cutting them too. The great advantage of laser cutting them is that the slots for the bellcrank in the webs, doublers and triplers, and for the front leadout in the inboard web, will all be perfectly cut. Since the webs often warp after separation from the sheet material, I hope John will be willing to only use the straight ones. Some laser cutters can etch a dark line onto the wood surface, and a centerline down each spar web would be a great building asset. Also, marks for the rib locations on the spar would be a great help. Precut holes for the landing gear would also be useful, because if they aren't drilled perfectly the legs will not exit exactly centered between the ribs.
One of the things that I was looking forward to with my own laser cut Ares was to have all of those ribs cut perfectly without having to hand slice them. Slicing by hand is no great bother, but the laser cut ribs will be more consistently accurate. For my Ares I made the CAD ribs all the same length, like the original model, to be cut to final length during assembly as per traditional I-beam technique.
A feature I did on my own drawings was to incorporate small locating notches for the ribs in the stab and elevator. Getting rib alignment straight the traditional way is no great bother either, but the notches make perfect alignment sooo much easier.
I realize that you have probably foreseen all of these issues. I just wanted to let you know that I am glad someone as thorough and competent as you is going to make these drawings. What a wondeful kit this is going to be!
Bill Groman
Bill Groman