I just kicked off the printer for my next rendition. As most of my changes were either fairly minor, or just repetitions of the same techniques with a slightly different artistic input, I opted to just do little overview and show off the major changes. first an over all view:
First, you will see I have heavily modified the contours of the grip to a more pleasing shape. I also cut a hard edge on the trigger well detail. I'm pretty torn about what that did to the contours from a 3d printing perspective. In a perfect world I would prefer that supports be optional, but for this print in my intended orientation, supports are mandatory. You may also notice I beefed up the under barrel detail as it was concerned that it was getting lost. I think most of that is based on my terrible phone camera.
What you can't see from that image is how I revamped the barrel registration. If I am going to make the parts smaller, the existing registration would basically get lost in the slicing, and I felt even at teh scale it is now, they are potentially flimsy. So I scrapped that and redesigned it like this:
These are much larger posts, the inner part is 4 mm across, so it should stand up to reduction without disappearing, unlike the 2 mm posts. (Side note - I use a .4 mm nozzle and with 2 shells, that means the smallest single feature can be .8mm in the XY plane.) I only used two, plus the wall teh inner barrel part sits on, but that's a total of 3 points, and three points define a plane for stability.
And my last changes are here:
The updated barrel is the closer one. I tried to choke down the muzzle a bit as was suggested, really accentuate the greeble on the underside, and I played with some of the chamfer which meant I had to resize the side detail. I am running all this on my printer again, and I will get some better pictures of the unscaled and the scaled for comparison. For the time being I am scaling the .STL files in the slicer, but once I have a finalized size i'm happy with, I will scale the .STL files themselves, as well as fix the rotation on the barrel detail piece so I don't have to keep rotating it so it sits flat on the build plate.
As those steps will be most likely done in something other than Fusion 360, I will show step by step instructions for those tasks.
Editing: because I left out how much I was scaling it down...
from the fleshy bit of my hand between the thumb and forefinger to the tip of my forefinger is about 4 inches. Measuring the unscaled pistol, the part of the handle that fits against that fleshy bit to a point a little on the other side of the trigger well is 5 inches. 4 inches is 80% of 5 inches, so I scaled it to 80 percent for the first try.