
- by John White
Cylinder Printing Setup, Maintenance and Defect Fixes
- by John White
Curved surfaces? Print straight onto bottles, tubes and cylinders — no labels needed.
Most cylinder printing problems in production are not colour problems. They are fixtures, alignment, artwork preparation and maintenance. Fix those four and the machine runs; ignore them and every week contains a rejected batch.
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The guides below cover setup, fixture integration, artwork design for a 360° wrap, daily upkeep, and the specific cures for overlaps, banding and misalignment on tapered and straight parts.
| Symptom | First thing to check | Then |
|---|---|---|
| Visible seam at the wrap start | Real part diameter vs software value | Stitch overlap in nozzle rows; fixture runout |
| Image skewed on a cone | Taper compensation enabled | Fixture axis true to the part axis |
| Banding across the curve | Rotation to head speed match | Nozzle test pattern and lamp dose |
| Print scratches after handling | Curing dose at the speed you ran | Primer and substrate preparation |
| Missing ink on one side | Gap between head and part | Chuck alignment and part ovality |
A 360° wrap always has a join somewhere. Put it where the customer will not look: a continuous background, a colour break, or a low-detail area. Keep fine text and tight registration away from the join zone, and give the controller a real overlap to work with. This single habit prevents more reprints than any hardware upgrade.
Wrong circumference in the software, fixture runout, worn belts, or a controller that has no stitch or overlap control. Measure the part and enter the real diameter, check runout with a dial indicator, and confirm the overlap is set in nozzle rows rather than guessed.
Wipe the capping station and wiper, check nozzle test patterns, verify the UV lamp window is clean, clear dust from the fixture and chuck, and confirm ink circulation or agitation where the machine uses it. The point of the routine is to catch a failing nozzle before it ruins a full run of parts.
Design at the flat development of the circumference, keep critical text and edges away from the start and end of the wrap, and let the controller handle the overlap zone with a low-detail or continuous background so any join falls on a forgiving area.
Usually fixturing and uptime, not print quality. A machine that cannot repeatably hold a part, or that needs a head clean every few dozen pieces, will miss the ship date no matter how good the first sample looked in a demo room.
This section is part of the Digital Cylinder Printer hub.
Running a defect that will not go away? Send the part, artwork and settings.
Talk to an Andresjet engineer about your application
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