coloured delrin/acetal uk suppliers?

[Jonathan]

I'm interested in the Tufnol can this item be tapped to use as a bed ?

Yes, I think so, but if you compare the price of Tufnol from that site to aluminium in reasonable quantities, then it's only about 20-25% cheaper than aluminium so I'd stick with the latter. One not so obvious advantage of using aluminium for the bed is if the part is clamped directly to the bed, the aluminium will conduct the heat out of it quite well - not the case for plastics.