I have been printing at home for about a year now on Ender machines with no problem.
The boss decided we should have a printer at work so we bought a Modix Big 180-X https://www.modix3d.com/big-180X
We just got it going, but are having quality issues. At certain layers we have filament bulging out and generally poor finish.
On the larger cubes we had the problems near the top & bottom. On the smaller cube we turned the temp up to 225 from 215 and decreased the multiplier from 1 to .9. Nozzle size is .6mm.
The defect is commonly seen (but not always) at the same height.