http://cpc.farnell.com/velleman-kit/k8200/3d-printer-k8200/dp/HK01193 (£409 + VAT) and they can make all the difference getting the plastic side going. Just add openscad and some good old rasp or a file :)
... you know what? what the hell, i'm gonna get one :)
Well done sir!
Need any help, let me know.
The software in particular, running on Linux requires mono recompiled to get the Arduino to work at some funny baud.
Head assembly must not leak - may need to put in copper washer because of a design flaw in sealing the head - if it does leak, need a new head!!
The output torque of the motor needs to be adjusted upwards to the limit if the movement is not to jam intermittently.
Also apply a drop or two of oil every 2nd or 3rd attempt on to the slider rails.
Recommend placing a piece of glass over the heated bed and clip it on like the guy has it in this picture http://hydraraptor.blogspot.co.uk/2012/12/mendel90-updates.html - get from Pound shop an A4 picture frame and cut its glass to size and run it 3 degrees hotter than recommended for the bare PCB heater.
The printer shakes a lot when running fast. Need a sturdy table.
Need an IP cam trained on it to spot any problems remotely.
Other than that, no sweat - just pure fun and fairly accurate prints.