A good bit of progress over the past few days. It's on hold until a new TIG torch handle comes in. They're somewhat consumable and didn't realize I was out of them.
This is what the actuator connects to for the tilt. The seat base mounts on it. The two holes are for tuning the center of gravity. Combined with the three positions in the frame and there's six positions to choose from.
Opposite side. Same thing just no actuator provision. Phosphorous bronze bushings press in. I decided against needle bearings. No need.
Crossbar for the uprights getting drilled for the armrest mounts.
Caster spacers. Simple stuff like these can eat up a lot of time.
Spot drilling the footrest. Too big for my machine. Had to do part and rotate.
Yes, that was fun to figure out how to hold. Doing the swiss cheese routine to 1) make it lighter, although it probably makes no functional difference, 2) So stuff falls out. Mine stay full of metal chips, and 3) it looks neat.
Fitup to weld. Torch handle bit the dust right after this. It's still half done waiting.
Part of the swingaway joystick mount.
The joystick housing mounts on the bigger piece to the right. This setup is similar to the one I made for W2. This one will use disc springs (something like belleville washers) to set the tension. The W2 uses plastic discs I 3d printed. It works great but is finicky to adjust the tension just right. The square hole is for the tilt switch.
This is how the crossbar mounts. The posts sticking out of the end are for the armrests. They swing up for transferring. Same design as W2.
This adjusts the backrest angle/recline/whatever it's called. I can actually make pretty welds when I can get to it.
I did the welds on the top of the seat base extra hot to melt them flush so no grinding would be needed. Quad hands + hand grinder = ER visit. I'm not man enough to bench grind it.
It's beginning to look like a chair.
I did source some more shock springs that fit. Barely. I still think they're as bit too stiff for the front. I'll just have to try them.