New to printing need some advice

spoumi · 2016-10-05T22:09:43.000Z

Hello friends,

I have a Geeetech prusa i3 pro B printer and I just succeeded in printing some things but I have some issues and I need your help so I can figure out what settings I have to change.

I’m using ABS 1.75mm and I have 235C for the first layer and 225C for the rest.

My heatbed is at 115C and 105C.

I tried to print a 10mm cube so I can calibrate my extruder’s motor but as a result I got that:

14585630_10154567021979183_1060665110_o.jpg2048×1536 106 KB

1) the walls aren’t very solid you can see the layers and
2) somehow in the middle of the proccess it got messed up.

What am I doing wrong?

Thank you in advance,

Spiros

PkStrSk · 2016-10-06T08:41:56.000Z

This might help you

Talk Manufacturing | Hubs

3D Printing, CNC machining, Injection Molding and more

But personally I think you should take a multimeter and measure the voltage on all the motor drivers, and adjust them to about 1.3V if i remember correctly, when I did it, it was by eye, i kept adjusting it until all the motors moved as i wanted them to, that I was doing during a test print. To measure the voltage you have to measure between the potentiometer and one of the pins, see the photo i attached. It is also a good idea to use a non-conductive screwdriver, like the ceramic one (I got one in the kit) so you don’t short something out or just be careful

http://www.achatzmediaserver.com/support/wp-content/uploads/2015/11/ramps-14-adjusting-vref.png