With Melbourne having an unseasonably, soaking wet start to summer, I haven't been able to get the welder out. I have all the parts, apart from 56 of the right length spokes for the front wheels and the sheet steel needed for the seat shell, I just need favourable weather to be able to get the project into the only suitable welding workspace I have access to, the driveway. Can't take an electric MIG outside when it's raining, sigh.
So, to feel like I'm actually "proceeding", I've been 3D printing jigs and braces to help keep the frame true. That, up there ^, is the jig for starting the side seam on the head tube. Yes, the angle is _meant_ to be -45 degrees, it's a lean steer trike. It works like this schematic...
The hardest join in this style of trike is the the cross-member and steerer. I printed a clamping jig for that, too. See the earlier post about that here.