Ok, so whats wrong?

[Davek0974]

Yes it has a fan, this is the head...

The hot end has a short gap between it and the support/cold end about 10mm, the cold end is about 15x10x45mm and supports the fan which blows into the feed cavity. This end does not get hot really, very easy to touch even after some time.

The major difference I can see is that it has no PTFE liner at all??

I got it working for part of one print and made this.

Ok, its not too pretty, the bottom 4 or 5 layers are missing as i was fiddling about trying to get the plastic flowing, once working it went ok, but 10 seconds after the print finished it was blocked again, turned it off and gave up as there is no point trying if it wont feed reliably.

I have asked the seller for a refund on the grounds that it does not work.

Seriously thinking about buying an RS-Ormerod printer kit now.