Hi,
I´m newbie too, but learned a lot during the last week with reading this forum up and down.
I bought a
Sintron prusa i3, because they were the cheapest on the bay.
But the old saying is again true:
Buy cheap-buy twice...
Their acrylic frame is only 5mm thick, which is a joke because the square holes, that should lock the frameparts together are made for 6mm thickness.

Also the screws for the frame are now 1mm to long. Plain silly...
The kit is far from complete. You have to search elsewhere for screws, springs, bearings, belt tensioners...
But you can also buy the electronics kit from there.
At Mega, RAMPS, LCD, stepperdrivers. Can´t go wrong with that, they´re almost the same. ( Go for drv8825 drivers, it might pay out in long term. )
Regarding the extruder, you have to read a bit. There is an ongoing development process. What you buy today, is outdated tomorrow.

I have bought the MK8 extruder from Sintron, it works. but I can´t compare it with others.
While I´m building my printer, the wish list grows everyday with upgrades and improvements. These LM8UU bearings on the bay all seem to be crap. I saw one SKF bearing for 12€ instead of 12 bearings for 10€. Guess what´s better? Although, you could buy 5 sets of 12 bearings and sort them out.
Have fun spending your Money, that´s the best advice I can give
Olaf from Germany
Edited 1 time(s). Last edit at 05/10/2015 04:02AM by o_lampe.