machining something big

2023-11-01

design files

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.