Geeetech

Is the white pla or tpu?

It does sound like the firmware is setup for the finer screw thread. You may have the better course thread with 4 starts which requires less stepper motor turning. What z axis resolution is set in the eeprom firmware (I assume you are using Repetier host) ?

Do you have the correct distance set between the nozzle and glass. You will need to pre heat the extruder and slide a piece of paper in between on the four corners. It needs to be a firm slide and may need a bit of trial and error until you get all four corners even. Also make sure the glass is very...

Thanks for the reply kaktus

It seems that Geeetech are telling porkies about their PWM fan output because as far as I can see PWM fans have 4 pin headers. +v 0v tach and the speed control via a square wave timer to control power at a constant 12v unless I am missing the point.

Hi kaktus

I think I know what you mean. The link I refer to was found on the amazon page where I bought the printer

Hi
This is the link to the user manual where you can get most of the information you need
https://drive.google.com/file/d/1lADrq9 ... bW-rZ/view

My limited knowledge points to an overheating issue. Either the head is too hot 200 should be good or lack of cooling on hot end.
I don’t know if this is of any help or not

Hi I have assembled my i3 pro b printer and it is working fine apart from I now need to add a cooling fan to the hot end. I have 2 spare 3 pin fan slots available on the 2560 board. Fan 2 and PWM fan. Which is the best one to use and how do you control it in the Repetier host program. I am using the...

I had a similar problem on mine but it was only on one of the uprights. I had to file it so it was more square. When I put it all together it seemed to square up fine.

Hi I have just upgraded my lead screws on this printer for the same reasons. The ones I bought were 8mm with a 2mm pitch with 4 starts. Using the calculator it works out to be 1600 so sending M92 Z400 (1600/4 for 4 starts) gcode to the printer followed by M500 to save worked perfectly for me. The pr...