3D Printing A Motorcyle Seat - is this possible? (Looking for ideas)

[curious aardvark]

you could print a working injection mould from PEEK.

don't think anyone is offering that service yet, but given the difference in cost - it will be a thing at some point.

If you had a suitable printer large enough you could print the seat in one or 2 pieces. PEEK would more than do the job.

Now it all depends what you intend to sell the seats for and what kind of profit you expect to make on each one.
The biggest printer I know of, fully capable of peek (and everythig else) is the mini-factory ultra: https://minifactory.fi/3d-printer/

Not knowing what a plastic base pan looks like - can't really make many other suggestions. Got any pictures ?

It's possible you could use one of the more engineering oriented filaments. ninjatech's armadillo comes to mind.
It's a rigid, lightweight polyurethane and the prints are phenomenal - way stronger than injection moulded abs - and any standard printer will print it easily.

So what sort of size are we looking at ?

[CSMonkey]

No you wouldn't, the cost would be uneconomical and the amount of post finishing to make a usable injection mould tool would negate any benefit.
Plus you then need an injection moulder that can handle a tool the size of a motorcycle seat.

If the output numbers are low, then direct manufacture via laser sintering in PA12 or similar would be the best option. Many service bureaus would be able to help with tweeking the design to make it fit for purpose and ready for small series production. Anything requiring moulds will have to be justified by the production numbers and the longevity of the moulding materials. Typical silicone moulding would use PU resins which will not last as a finished product.

My background- 20+ yrs in prototyping and Additive Manufacturing and riding motorbikes
(and I run the UK's only PEEK AM centre)