machining something big
cnc router: ShopBot 5' x 10'
cam: vCarve Pro
In pursuit of my final project, I made a chair to calibrate sitting position relative to my rudder pedals. I need several degrees of freedom (primarily chair tilt and back tilt relative to seat base). I went through several design iterations but ended up concerned about structural integrity for all of them, so I just settled on a normal, but short chair that I could block up on the front and the back.
The seat back I don't anticipate to require too much iteration, so it's attached with screws and can be adjusted by unscrewing and reattaching.
cuts complete
Here are the parts cut out on the ShopBot:
chip-out
A huge chunk separated from the OSB aggregate during cutting:
I didn't feel it affected structural integrity too much, so I didn't recut the part.
autotabs
I used autotabs in vCarve Pro, which made it easier to place my parts, but several of the tabs ended up in annoying spots:
It was relatively easy to cut these out with the corner of the oscillating saw.
complete
The fitment ended up quite good -- most of the joints are quite tight. I used an 0.1mm offset on each of the joints.