Advice on power supply wiring for the UK I've been looking at the Ender series and decided to take the plunge. But I'm unsure on electrical matters. The 110 or 220 volt switch, I assume goes to 220&nbsp;V as I live in the UK but my main question is, from what I've read they come with an EU plug and a uk adapter, is it safer to switch to a 'kettle lead' for it to have it's own fuse and be grounded or is the adapter it comes with fine? (I've never been a fan of adapter and I've read in different places that they're fine or that they are horrible.) 

Please help as if I need to buy a cable I'll do it the same time I buy the printer. Thank you all in advance for any help I get, hope to join this community properly as soon as the printers come back in stock anywhere.
The fuse may be academic, because there might be an integrated fuseholder in the PSU itself. That said, adding another fuse in the form of a proper UK plug certainly won't hurt. 

I'd certainly do this, too. Fuseless plugs have no place in my home/workplace

For the rest - yes, the 220V position for the switch is good. Grounding, again, certainly can't hurt, but the PSU is probably double-insulated, which doesn't require it.