Solved Printing shows Z offset

This printer has auto levelchecking
Recently firmware has been updated.
So it makes some worse.
Any suggestion?

Regards

 

I am trying to confirm print again with right setting that makes new gcode for it.
Using Mattercontrol with viewing start gcode script with confirming.

 

is this a public model that you are printing? I'm trying to get an idea of what it is supposed to look like

 

Thanks Danzca6
It is printing parts screw of http://www.thingiverse.com/thing:1551236.
So problem is on bottom side, this screw has been created matched on horizontal placement.

regards

 

My start gcode setting is following.

G28 X0 Y0 Z0 ; home all axes
G1 Z5 F5000 ; lift nozzle
M109 S[temperature] ; set the extruder temp and wait
G28 X0 Y0 Z0 ; Home Z again in case there was filament on nozzle
M565 Z-0.6
G29 ; probe the bed

 

I had cancelled print because behavior shows on bottom as before.

 

Ok so your z offset looks like it could be ok, but the model is printing several layers up on the model than what it should be. So you are loosing the bottom X layers of the model. Is that correct? What software are you using to slice and print with? You may just have the model placed in the software partially under the build surface of the bed.

 

You may also need to print that part with it standing up if you have the room. With threads, it would be difficult to get a clean print laying on its side like that. May not be as strong that way, but might make it more printable.

 

Black one was created in before printer update.
It was printer update on extruder so titan need to update marlin firmware for extruder step rate.
Something struggle in firmware creation at that time so firmware may have some issue.

 

oh...so did you use the correct baseline firmware to make you e-step changes to? Maybe your z-steps are incorrect.

 

Yes bottom few layers are missing

 

Gcode may have right layer but printer does not output in place

 

Dear danzca6
Z-e step may not have issue because top side print layer is correct.
You can see it on black one (past) and yellow one (current).
Just bottom layers are missing .
Should I make recalibration for z-offset ?
I have forgotten about process for it.

regards

 

Dear danzca6
Yes original design has stood up.
But screw style of printing at Robo3D y-axis movement factor makes worse for it.
I have another 3D printer as Replicator2x clone that has stable heat plate no x-y axis movement just z-axis moving.
So that type of printer may perform it correctly.
Printing target is PCB vise and it may not require strong grip power.
horizontal screw design is not bad choice for this case.
regards

 

My slicer is mattercontrol set .
And it is performed through SD card bases.

 

Try result with M565 Z-1.5 shows better result (1.7mm)

It is propagated from Z offset setting

But caliblation result may not shows such value.

Sense switch z endstop until make.
And try to increase Z axis until free.
It shows as 0.5-0.6mm.

Need to understand on this cause.

 

I don't see that part in the list of parts for that model. They are all full threaded. None have cut offs on the top and bottom like your pic with the matter control.

Your z offset just changes how close the first layer is onto the plate. Won't bring back or remove layers of the model.

 

I had tried to change z offset parameter on start gcode script.
from Z-0.6 into Z-1.5
and result shows better

Sorry for make confusion, I had focused on bottom layer only, mid and right are cancelled print middle of the way.
In addition infill rate has been changed too.

Now I am looking into firmware side, M565 Z offset issue has not been handled in right way.
I found some thread on this forum and try to conclude with change as its.

regards

 

Thanks Mark
I have reviewed thread of M565 issue .
And negative z-offset of Robo3D mechanism is unique.
regards