I have been lurking around here for some time now and I finally decided to do my very first engine build. I was greatly encouraged by attending the N.A.M.E.S. show near Detroit last month. Meeting Steve, George, and many other HMEM members really encouraged me to get started on my first build. I decided to build a simple Rocker and downloaded the prints from a HMEM post. After about 15 hours of shop time I have a RUNNING ROCKER! How exciting to see my very first engine come to life! I started with a block of brass for the cylinder. Trued it up with my home brew mill. Then using CamBam, I drew the cylinder end cutout and the cylinder bore and produced the G-Code for Mach3. Doing that successfully, I then repeated the process for the flywheel. Both really came out great, for my very first try! Here is a pictures of the finished Rocker: The picture below shows the parts that I built. As I did a few things differently then shown in the print, I though I would give you a blow by blow description of what I did a bit differently along the way. At the left you see the finished cylinder block. I press fitted the shaft bearing in place. The base is at the top, the flywheel at the bottom. I decided to tap the flywheel mounting hole to 6-32 and thread the drive shaft. When doing the final assembly I will use a dab of Loctite to hold it in place. On the right of the picture, the first item is the air line adapter. It is threaded 10-32 as shown in the print and I machined a hose barb on the end of it. Below that is the piston and to the right of it the cam assembly. I drilled the connecting rod end of the piston to clear a 2-56 screw. I then drilled and threaded the cam rod hole 2-56. I also threaded the cam mounting hole to 2-56 as well. The last piece is the drive shaft. I threaded the flywheel end 6-32 and tapped the other end 2-56 to screw the cam to. When assembled, it really makes a nice assembly. In final assemble all the threads will have Loctite to hold the screws in place. So there it is, my very first build, AND IT RUNS! Wow, I am so pleased!