On their Ebay page (Geeetech) their feedback is 99.8%.

They must be gaming their ratings, right???

Anyway geeetech's replies are getting even worse. I said to them if they wanted to get more biddings they should put a reserve price or an offer.

And their answer:

you can report listing abuse even without biding on items. thats fraud posting one price then trying to jack it during paypal. they could have canceled bids and auction 24hrs b4 ending if they had a true mistake. otherwise thats a binding contract. they can be banned from posting and shut down min suspended 2 weeks for such actions.

this - without a doubt!

send copies of emails & a screen shot of the listing showing the "free shipping" to ebay. (or the listing number, they can find it)
do not just let it go.

I also tried to buy the aluminum model of their i3.
I won the auction for $290 usd and when I was about to pay, they needed another $45 for shipping.
The listing was stated as free shipping. Also all their stuff on ebay are free shipping.
I send a couple of emails, and their reply was "sorry for the inconvenience. It is because the price is too low"
I tried reporting them to ebay, but because I didn't pay yet I can't do nothing.

you can report listing abuse even without biding on items. thats fraud posting one price then trying to jack it during paypal. they could have canceled bids and auction 24hrs b4 ending if they had a true mistake. otherwise thats a binding contract. they can be banned from posting and shut down min suspended 2 weeks for such actions.

I purchased their Delta Rostock G2s Dual Extruder printer, and Geeetech definitely seems to have an issue with quality control.

The sad part is, if they actually took the time to fully vet their suppliers and demand quality parts, their designs would work fine.

.. and would probably only cost about $20/$30 more.

An example - the acrylic top of the G2/G2s needs to be 8mm-9mm for the frame to hold tightly together, but I received a 7mm piece. Only took a trip to the hardware store and some well placed 1.5mm thick washers, but for the non-mechanically inclined, this would be a showstopper.

I have modified their Wiki page on reprap.org (http://reprap.org/wiki/Delta_Rostock_mi … embly_Tips) with the assembly modifications I needed to do to make it all work, but now that I have done that, it prints nicely for a $350 machine.

At least, it prints nicely enough to print parts for a better (homegrown) machine!

When it comes to Geeeeeeeeeeeetech you may want to use the terms "Their designs" loosely. Most of their stuff is direct copies of already existing parts and printers. Or they took two existing designs and combined them.

The sad part is, if they actually took the time to fully vet their suppliers and demand quality parts, their designs would work fine.

.. and would probably only cost about $20/$30 more.

An example - the acrylic top of the G2/G2s needs to be 8mm-9mm for the frame to hold tightly together, but I received a 7mm piece. Only took a trip to the hardware store and some well placed 1.5mm thick washers, but for the non-mechanically inclined, this would be a showstopper.

I have modified their Wiki page on reprap.org (http://reprap.org/wiki/Delta_Rostock_mi … embly_Tips) with the assembly modifications I needed to do to make it all work, but now that I have done that, it prints nicely for a $350 machine.

At least, it prints nicely enough to print parts for a better (homegrown) machine!

Go to your local hardware store, get a piece of window glass cut to the size of your bed for a couple of bucks, stick it to the stock aluminum plate using Aqua Net super extra hold hair spray and never look back

List of issues I had and replaced
main board
all steppers (replaced their a4988 with drv8825)
z threaded rods were bent
y smooth rods bent
x smooth rods bent
Z smooth rods bent
(they caused a wobble when printing (after I finally got it printing with ramps and mightyboard))
replaced all bearings because when I received theirs the balls were falling out.
they sent me a 350 watt psu that failed after 2 attempted prints, they sent me a new one claiming to be 350, it smoked and burned up opened it up and found it was only a 200 watt. it also damanged the gt2560 board.
replaced acrylic with a custom frame structure (acrylic pieces were cracked and some cracked when you barley snugged them up.
and finally a new lcd 128x64. the one they sent the sd card was broken. so I replaced the lcd while I was waiting for new sd card socket. I have since fixed that. But all in all out of a 460$ purchase, I ended up spending close to 400 more ontop of the 460.

I now have it working but I purchased a FlashForge Creator X, let me tell you. OMG this thing worked out of the box, no adjusting or tuning. no calibrating. it worked perfect. The only bad thing with flashforge, is there is a known issue that the aluminum build plate warps after a few heat cycles. Then they say "Yeah its a known issue" so then they want you to buy a piece of glass from them. They should send that free because they know its an issue. May take that up with BBB or the FTC. After spending 1021 then they want you to spend 19$ more I think isn't right. especially when purchased directly from them.

STAY. AWAY.

I have received 2 psu from them both defective upon receiving.  First one put out 8v right out of the box. Turned up the pot and would only hit 11.1v. Second worked for 10 minutes then heard a pop. pulled it apart and due to poor soldering the voltage regulator became disconnected. It appears it was a cold solder join and very poor from the get go. It had been arcing the whole time to make it work. Also the led wouldn't work you touch it and it would turn on. So I had to solder a new led in and resolder the voltage regulator. They then claimed it was out of their control and not their fault. When they shipped broken parts to me they claimed it happened in shipment. One had a foot print on it and was broken with the piece stuck in the wrap with it. Knowingly sent a broken piece with it. Some of the boxes were poorly packaged.

They sent me 4 packages all were missing same pieces, and had broken pieces in it. Then complained about how many they sent me via dhl. Wanted me to pay them back for shipping too. Their sales called me a liar and other names too. Told me that "I was on my own" and then blocked me. Then after I left negative feedback another person contacted me bribing me to revise my feedback "if you fix feedback we give you 25$ compensation and we wont block you, and continue to help you". So I reverse 1 feedback, they immediately blocked me and never gave me 25$ either. Reported them to both paypal and ebay. Then they have the nerve to leave reply's to my negative feedback that I shouldn't lie its not nice, etc etc.

This company is very very poor. Their sales do not now anything about these printers. Their tech support is non existent. They have a forum but never use it, they claim they don't like it. Their sales also told me that their "college" doesn't have a duty to help anyone with their printers. Then whey do they refer everyone to him? And they don't pay him! ?Him and I have become friends and he has helped me quite a bit, but still have no working printer. I'm tempted to buy a Robo3d.