Ok then
Recheck all your assembly, and go for the fine tunning like..
- Check x/y are perfectly square
- Check pulley vs shaft are perfectly align so the belts move smoothly to avoid any extra backlash
To illustrate this part:
- Make sure that tension on the belts is the same (at least feels the same) on both sides of the belt, if not, maybe the wood clamp on the belt is pushing too much pressure on the up side and too little on the bottom side. Fix for this should be release the pulleys, and let the belt tension adjust itself. Ofc there's also a gazillion umo+ belt tensioners.
Your machine need's oil, indeed, from day one, specially since after assembling it you might have put dirt, hand grease, wood dust, on your shafts. Is a very good idea to put a drop of oil on the shafts, and green lube on the Z bed lead screw.
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neotko 1,417
Check this guide. Most probably your short belts ain't tight enough
http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#circles
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Vectorious 1
I already followed this guide before I posted here and was not successful (although I didn't lubricate the rods). I also tried printing very slow (20 mm/s) but the print maybe slightly improved.
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