First up, the choke part. It's a bit grubbier, but there are no obvious signs of ageing - the holes don't appear to have ovaled, and there's no yellowing, cracking or other signs of deformation that I can see.
The throttle part seems fine too. There's a nice well-defined wear line where it rides on the throttle cam, and it appears to be in about the same place as the wear line on an original part. The 3D printed part is made of Nylon, which is somewhat self-lubricating, so I deliberately did not oil the cam when I fitted the part - oil would tend to attract dust and increase the wear I suspect.
Again, no other signs of ageing. The DIY spindle, made from a flat headed rivet and a spacer tube, is still holding the part firmly while allowing it to rotate freely, and the part itself seems no different from when it was fitted.
I've had a steady trickle of interest in these parts (several images from this thread show up on the first page if you Google for images of 'Pierburg choke' for instance), but there are still plenty available. For the benefit of anyone who hasn't seen this thread before, I sell these parts more or less 'at cost': the choke part is £1, and the throttle part (including the spacer and some rivets) is £1.50, plus £1 postage to cover 'several' of these parts (I've not yet had an order for enough to take the postage over £1).
