1

Hi All,

I work at a school and we have a Z450 printer, I have worked with these before and never had a problem (although I am no expert). When in the sensor alignment faze it always fails. I have tried thoroughly cleaning it, and even blocking light from entering through the screen. I have changed print heads as well in case it wasn’t printing the alignment grid correctly but nothing seems to work. If anyone has ANY ideas or may have had this problem before I would really appreciate your help!

Thank you,

Gary.

2

Gary, The only time I have seen this was if a printhead was bad, but looks like you changed them alrrady. And for me it was a bad color head.

3

Hi Ted thanks for responding.

Yeah that was my first thought. anyway I have managed to bypass the alignment stage, not sure if it will have any implications on print quality or positioning but seems to be ok atm, maybe you might know?

4

So my question is how did you bypass the sensor alignment? I could only assume that without the alignment routine the printhead will not be aligned to the color. I don’t see how it could affect a white print.

5

So my question is how did you bypass the sensor alignment? I could only assume that without the alignment routine the printhead will not be aligned to the color. I don’t see how it could affect a white print.

6

Hi Ted

Did you solve your cuestion?

I have the same problem and doubt with my Zprinter 510

The printer can’t align because the sensor window is dirty, I cleaned it, but nothing happens.

In my case te printer make me aregular and perfect vertical stripes of uncured material.

I tried to solve it with alot of actions, but now I start to think that is problem of sensor alignment.

7

I talked with 3d systems tech support and they advised me that i could turn off the color…so I did.

I’m not sure if the 510 has that ability or if it even prints in color or not, but that is how I got around the problem.

I’ve put in new cartridges but that did not work. It looks like the POGO board might be bad, but since I print in white, I have no plans on swapping boards.

8

Ok Ted, thanks.

Yes I try to print only in monochrome, it seems that alignment only affect if you prints in color.

to the other hand I’m triyng to solve another problem:

The prints are ever striped with vertical regular lines of bindered and not bindered parts (I’attach photo)

I try to change the printhead, I wash the clean station and all parts and I try to change the values of core and saturation, but nothing seems better.

By the way I use ceramic powders not 3D Systems powders

9

When you say it fails, what error code are you getting? Have you tried using zmonitor to diagnose as you’ll be able to see led levels or head fails for instance.