I too have had a horrible experience with GeeeTech. Smooth rods BENT on Y axis. Threaded rods on Z lift BENT, You can clearly see a wobble. They refuse to replace either one.
They sent me a BAD PSU unit, which inturned melted the gt2560 board, and they say it was a setup error. NO. They also think I had a bad hot bed which I believe I did. I used to beable to hit 110 c for the hot bed but I cant even get past 70. I bought a new mk3 aluminum bed and still cant get past that. They have sent me 2 more gt2560 boards which non of them worked. I couldn't get any axis to move correctly if at all. Finally I have had to use my ramps 1.5 board and have actually gotten somewhere.But that all spiraled down hill too.
I have been dealing with GEeeTech for 2 months now. 400$ printer is now sitting at 750$. They wont help me. John their designed of the gt2560 board claims hes "too busy", they have a "us based" tech support but wants you to pay him for him to help you, he says hes not part of geeetech, yet he says hes us based tech support. Makes no sense. I wish I never bought from this company. I have filed a claim with paypal, they want me to pay 150$ to freight it back to China. WRONG, its come to me defective., and every piece they sent me is either broken physically due to poor packaging, or it doesn't work at all, or finally it wasn't included in the package. For the last month I still am waiting on the 4 pin power wire (94v-0 molex) wire to go froim PSU to GT2560 board. I finally ordered the connectors from Allied Electronics and made my own. Still not working. I printed 1 object that came out PERFECT, but have yet to replicate that. I have not changed slicer settings, nor anything else. I even tried a 24v psu and changed the hotbed and the extruder heater. Still no better.
Now im having an issue in Repatier if I KILL the job, it will home, however if I let the job finish it stays on the finished area and melts into the object and bonds its self to it. It wont home. I have it set to go to x0 y200 upon completion but it wont do that. Again if I hit kill it does.
Their sales actually ignores me when I have tried to ask questions, then she refers me to John who I get 1 reply a week if im lucky. Otherwise its 1 time a month if at all. Then they passed me to Rita, the person who wrote the assembly manual (Not an assembly issue).
Their acrylic panels were cut wrong and not with square edges, so when assynbled they cracked when tightening list a little over finger tight. Again Smooth rods bent, z threaded rods bent. They ask me to buy the rods locally. I shouldn't have to buy them when they included it in the printer and they were bent! Their smooth rods are a soft alloy junk that when you gap the bed you can clearly see the bed rods flex. You can also roll the rods and see the bed move up and down. This is not correct.
When received, the extruders were assembled incorrectly. They had the throats too far from the feed gear and the roller. They also had the head blocks turned the wrong way so it melted the X carriage and the extruder bracket. They sent the printed parts that were horrible quality. Extruder bracket was warped and splitting severely. The X carriage was warped BADLY. X motor had broken z limit switch threaded tab.
All in all this is a pile of junk.
Things I have had to buy because they wont replace.
Nozzles (even though they clogged due to their software was incorrect and not feeding the extruders, they acknowledged the error and sent new firmware and asked me to buy nozzles)
PSU I have bought new 12V psu, and 24V psu. neither fix the problem.
Hot bed they have sent me a replacement hot bed that was warped, was told it should straighten out when heat cycled. Well it doesn't even work. it was doa. so I bought an mk3.
more filament. messup after messup had to buy more filament they said they cant ship new filament out to replace it. even though I never got 1 object to print due to their garbage.
More throats due to lack of feeding it melted ptfe. so I had to buy throats and ptfe.
New LCD screen because their sd card slot was broken. wouldn't replace thatl.
Y axis belt because they have it drilled incorrectly it rubs severely and rubbed through the belt 2 x now. They wont replace the belt asked me to buy it from one of their 17 stores.
Heaters yes they burned up and failed so I had to buy more 12v heaters and 24v heaters.
I cant get this thing to print 1 usable part, if it even prints at all. Im now having issues where it disconnects while printing. The computer usb will make the sound like I unplugged it while pringing. I have changed usb cables many times. Has happened with both 12v and 24v psu.
Will someone please help me? Geeetech wont support their own product.