tevo777
_y6oFkFa.jpg 

hi, i just got a tevo, ive put it together, and im having a few problems. i have begun by trying to print a standard cube. as you can see from the picture, the y axis is out of alignment. its printing each layer slightly off from the last. whats wrong with my tevo? is it the alignment of y? is it the gcode? is it the firmware? i have no idea how to fix this.
also, i have another quick question: where should i be aligning the home axis? currently i have it to the farthest bottom left corner of the bed, basically over the screw. should i move it in a cm on each side? how do i set home correctly?

thanks so much for your help.
Quote 0 0
tevo777
hi, im still encountering this problem of leaning of the y axis. i have since retensioned the belts and realigned the bed multiple times, reset the endstops, and tried various different printing speeds, but its still printing 4-5mm off each layer after it completes hte base. i am thinking its probably not mechanical and i am worried it might be a problem with the electronics at this point. if anyone has any ideas, your input would be extremely appreicated. so far this printer is a dud. 
Quote 0 0
barthyone
I too had this problem on my Black Widow.  The Y axis was skipping and it wasn't an excessive speed or acceleration issue.  For me it was too much tension between the v wheels and the gantry.  Conversely, too little tension causes it's own problems, and preventing the x shaped gantry from bending when the bed is properly tightened down, is proving to be quite a challenge.  I'm thinking attaching Tevo's gantry to a new Openbuilds 6mm gantry plate to prevent the v wheels from loosing their parallel alignment.
Quote 0 0
Gustav
I had the same problem, in Cura (the slicer that I use) I changed these values: 
Print acc: 1000
Travel acc: 1500 
Jerk 10 
Did a night and day diference to the prints! Y-axis shifting is gone! 
Quote 0 0
tevo777
thanks everyone for replies. i have managed to fix this, basically it boiled down to tightening up the y axis. yes i know i said i already tightened it, but actually it needed to be really really tight. 
Quote 1 0
Bootstrap
I am having issues with this as well on my Tornado. I have tightened the belts, leveled the bed, slowed down the printer, but still running into these shifts.. any ideas?
Quote 0 0
freeman015
Gustav wrote:
I had the same problem, in Cura (the slicer that I use) I changed these values: 
Print acc: 1000
Travel acc: 1500 
Jerk 10 
Did a night and day diference to the prints! Y-axis shifting is gone! 


Make it worse for me.
I have the settings like this:
settings.png 

I went ahead and checked the rollers on the tracktion bed.
Seems one of them is tight and the other free rolling.
Going to check to see if I can change that and see what it does.
Quote 0 0
freeman015
I have unscrewed the under carage and gently screwed it back in to the beam. Seems that did the trick for me.

2 rollers are tight and against the beam on both sides at the same spot. The other rollers are lose and touching the beam lightly
Quote 0 0

Add a Website Forum to your website.