I just put it together it took approximately 24 hours whole process over several days. Assembly was not in a hurry and I was reading the online manual how to do it, that thing is horribly written. Had to take apart few things several times during the process. The hotend keeps on jamming all the time and this is on top of not being able to home the machine properly nor kove the axis without it wanting to go down all the time and drag along the heatbed. Fan shroud is broken on hotend, fan on one of the extruders wont rotate, random issue with hotend thermistor not working due to poor wire connections to the board on top of extruders. Way too Many unnecessary parts that complicate the structure. The rods on that hold hotend spider woble like crazy even when bolts tighten. The firmware installed on my machine is ver 2, what it your firmware version ? I feel as this this thing is overadvertised over priced lemon. Idea is good, but execution is poor.
Exactly! Regarding the hotend hitting the table in the center, that is because of wrong default settings (don't they know the geometry of their device?). Without you specifically asking, they don't provide the information on how to calibrate that. However they have a special separate calibration manual (aside from the main assembly manual), and it says that you need to adjust the "Delta radius" setting. You can google for it. It's a common issue for all delta printers. Some sites even have howtos with pictures on Kossel calibration. You will also need to replace the extruders. Those plastic pieces of crap are by design unable to push the filament. Replace them with metal MK8 extruders (you can find them on aliexpress or ebay), or even better with some geared extruders like Greg's/Wade's or maybe Titan or Drakon or something else. You should also add lubricating filters where filament enters the extruder. And cut the bowden tubes as short as possible. These steps will greatly improve the ability to print and the print quality. Another thing to do is move the hotbed sensor away from the heating wire. I use a 5mm cork insulator between the sensor and the heater to make the sensor report the temperature more resembling that of the hotbed surface. This allowed for finally be able to print with ABS so that it adheres to the table. Without that the hotbed surface never gets heated above 65 degrees, even if you set it to 120. Note though that you will need to adjust the PID regulator settings after you move the sensor. Otherwise the temperature will be oscillating or/and not reaching or overshooting the set value. All in all, this printer is an out-of-the-box piece of crap. It requires substantial engineering efforts to make it print.
By the way, I made the seller replace the wobbling rods for me (I actually only had one). And you can add washers made of thin copper wire to remedy wobbling along the rotating axis (I did that before I got the replacement). However even when the rods are fine, they still have too much of a play in the joints. I'm planning to replace the effector and the rods with a magnetic system. As for the broken fan on the extruder, you don't actually need it as the extruder don't get hot even after you pump up the voltage (I hope you did it? It won't work at all without that). So you can use those fans as spares for the hotend or use one of them for cooling. You can, by the way, control the speed of a cooling fan if you connect it to extruder 2 or 3. Can't recall the exact G-code for that, but it can be found somewhere on Geeetech forum. I don't use it yet, but I tried some time ago and it really worked. My firmware is also version 2 and there is version 3, which is even more buggy, so don't even try to use it.
GOOD MORNING. MY NAME IS ADRIAN I HAVE BOUGHT A GEEETECH DELTA ROSTOCK 301. PLEASE I NEED HELP TO MAKE IT WORK SINCE I DEMAND A GREAT INVESTMENT. I would greatly appreciate your help.
I'm very sorry to hear that you've made this mistake. There is no chance to make this piece of crap work. The best you can do is sell it and buy some decently made one. If you want to keep it, please check the Rostock 301 discussion thread on Thingiverse, there are some hints to make it at least print anything.
