Hello, do you have a picture of the problem to help you? the problem can be caused by a lot of things.

If you want, you can open a ticket to the support team at: https://support.bcn3d.com/knowledge/kb-tickets/new

Also, the support team has more ways to help you like live chat and the knowledge base: https://www.bcn3d.com/bcn3d-support/

I can tell at 80mm/s look like the printer have some issue to keep up and you will see ghosting effect if you add letter. I speak for me Epsilon w50 I don't know which model you have. 

See here on the picture!

@mlaurin 80mm/s is pretty fast. I recommend decreasing the speed if you want higher quality.

@anavarro If I compare to my old prusa i3 I can print 120mm/s whiteout any problem.

Maybe one nema17 for Y on a W50 is not enough. 🤔  

@jcalicchio Could you please tell me what is the maximum print speed for the W50.

Also the parts was close to the back look better then one on the front ... well look like vibration issue.

Hello @mlauring

The maximum print speed depends on the material, the temperature, and the hotend diameter. I recommend you to follow this guide instead increase the print speed to save time: https://support.bcn3d.com/knowledge/speed-up-bcn3d

I know that some printers can print so fast but exist more ways to save time. To increase the speed you will need to play with the acceleration and the jerk because the printer will need to reduce the speed before changing direction.

Hello @jcalicchio 

Tanks for answering my question. Also a big upgrade BCN3D can do its to change the Y motor for a bigger one or put two , just thinking about braking all the weight of 2 extruder whit a single nema 17 🤯 for the W50 !