thixio1 0 Posted September 7, 2015 in Strange shifting problem with prints on UMO+ (edited) Strange shiftig occurs after a certain height of the prints. Observe the flawless printing for the small brain, while the large brain suffers from artefacts starting from a certain height. Also, the belt of the motor on the back left gets loose every time, although I straightened it by pushing down the motor and fixing it by tightening its screws like hell. Any ideas or suggestions would be highly appreciated! Marc Edited September 7, 2015 by Guest Share this post Link to post Share on other sites
DidierKlein 638 Posted September 7, 2015 in Strange shifting problem with prints on UMO+ Either you have a loose pulley somewhere or the short belts are touching the woodframe Share this post Link to post Share on other sites
thixio1 0 Posted September 18, 2015 in Strange shifting problem with prints on UMO+ I reduced the acceleration to 1100 and it works just fine again. Share this post Link to post Share on other sites
thixio1 0 Posted September 18, 2015 in Strange shifting problem with prints on UMO+ Either it was mechanical (pulley) or overheating of the stepper motors. Share this post Link to post Share on other sites
neotko 1,355 Posted September 18, 2015 in Strange shifting problem with prints on UMO+ Umo+ in theory (unless if it's summer in spain) stepper motor chips can't get hot enough. Try to check the calibration. Adjust the pulleys and check the small belt tension. I can print very fast with aceleration at 2000-2500 and travel moves of 200. Of. I changed my belts/pulleys to gt2 but I been using that speeds with the mxl stock without problems. Share this post Link to post Share on other sites
