You are not logged in. Please login or register.
SoliForum - 3D Printing Community → Solidoodle Press → Holes in top of some models
I tried printing the Cute Octo model with a few different settings. I can't seem to eliminate holes in the top entirely. It was very bad. Increasing the top layer reduced the holes, but they are still noticeable.
I am using Repetier Host with the Cura engine. Settings are generally the defaults and the custom ones for the Press provided on this forum by Soliryan, with 0.3mm layer thickness.
What settings make the most difference to deal with this issue?
For the "Horizontal shells" what's the "Solid Layers" for top? I usually set mine to '4'
This might be "pillowing". Suggestions:
If your infill is <30%, increase it to 30%.
Increase your minimum layer time.
Run your extruder as cool as practical.
More suggestions here: https://github.com/daid/Cura/issues/771
Disclaimer: I am by no means a Cura expert.
Agree with trayracing. It is vital with Cura that you set your infill to a MINIMUM of 25%. I usually use 30 or 40%. Cure does not do the "crosshatching" pattern with infill if it is set to 24% or less, so it tends to have gaps which cause problems with the top layer adhering to the support, and causes it to fall through the gaps. So try 30% infill, and check the top layers just in case as well.
Agree with trayracing. It is vital with Cura that you set your infill to a MINIMUM of 25%. I usually use 30 or 40%. Cure does not do the "crosshatching" pattern with infill if it is set to 24% or less, so it tends to have gaps which cause problems with the top layer adhering to the support, and causes it to fall through the gaps. So try 30% infill, and check the top layers just in case as well.
Infill was set to the default of 30%. I have increased the top layers (which also increases bottom layers), so the top is a little better. The top still has very small holes, similar to the top octopus in my photo, but it is better than before.
I would suggest maybe upping it to 35 or 40% then, and see if that helps. Obviously, the higher the infill level, the less space there is, meaning that there is more for the top layer to stick to.
I'm experiencing the same issue with the same slicer (Cura), but I also had this problem with Slic3r.
I would suggest maybe upping it to 35 or 40% then, and see if that helps. Obviously, the higher the infill level, the less space there is, meaning that there is more for the top layer to stick to.
I use 40% and still there are small holes on top. By the way how did you manage to level the bed. Cause mine is giving me the hedache (the probe or the software doesnt take in consideration the fact that the bed is not leveled).
It's probably mechanical slop causing holes. Detailed pictures would be needed to assess this. I have printed this model at 20% infill on my Solidoodle 4 and haven't experienced any holes.
I increased my infill to 35%, and I no longer have holes in the tops of my prints. The infill lines in Cura are so close together even at 35% that I almost thought I'd set it to 100% infill, which makes for a very solid top surface indeed.
I use 40% and still there are small holes on top. By the way how did you manage to level the bed. Cause mine is giving me the hedache (the probe or the software doesnt take in consideration the fact that the bed is not leveled).
I set it to auto-level the bed at the start of every print. Works fine for me. That's about the only problem I haven't had!
This 4 images sums of the problems for me. If anyone has any ideas I am open to sugestions
This 4 images sums of the problems for me. If anyone has any ideas I am open to sugestions
You may have a loose connector to the extruder motor. Take a close look at the contacts as the printer head passing over the areas you have pictured in the top right. Mine was shorting and caused similar issues. IF there is no short then the leveling is too close as you suspected, not sure how to fix that other than having the probe do it's thing..double check your G-code in this case.
I dont think is the extruder. I can actually see that extruder head is 1-2 mm in the air, in the area where the curly lines are (down of pictures) and I can hear the scratches when up of the picture. The probe appears to work (when it checks the 9 points the returned result seems ok). Other ideas ?
Other ideas ?
I've seen the bed vibrate while translating which could cause for incorrect height measurements. I'm considering putting lead weights on the rear ledges of the underside of the bed, but others have used metal springs connecting the bed to the floor or the case.
Also make the bed is even moving as the printer head moves around for a single layer.
madfalcon81 wrote:Other ideas ?
others have used metal springs connecting the bed to the floor or the case.
Hmm, interesting but not sure about this. Havent heard anyone.
The problem is in your starting G code. You cannot have G28 after the G29 or it will reset the bed leveling data.
The problem is in your starting G code. You cannot have G28 after the G29 or it will reset the bed leveling data.
After removing the G28 code it does this:
1) when calibrating, it calibrates in midair. This means the probe is moving into those 9 points, but the bed is aproximately 10 cm away.
2) after this "calibration", when it starts printing, its doing it at those centimeters in the air (estimative 10 cm, but I dont believe the exact distance is that important).
Please post the exact code that I should have in the starting Gcode. Thank you !
The problem is in your starting G code. You cannot have G28 after the G29 or it will reset the bed leveling data.
Alright, I put back the G28, but before the G29 and so far it seems to have change my printings. Thanks a lot !
Of course, after doing this, other problems occured, but for now it will do.
Here is my start code (in Slic3r Printer Settings tab).
G21; set mm units
G90; set absolute coordinates
G28 X0 Y0; home X&Y
G29; probe bed
G92 E0; reset extrusion distance
G1 Z5 F5000; lift nozzle
Here is my start code (in Slic3r Printer Settings tab).
I will give it a try.
SD support tells me the proper Press start g-code for auto-leveling is:
G90
M100
G28 X0 Y0
G29
G92 E0
You also need to add in the heater codes etc. as well.
I don't know what the M100 is for - perhaps the light on top? (Too lazy to look at the source code)
SoliForum - 3D Printing Community → Solidoodle Press → Holes in top of some models
Powered by PunBB, supported by Informer Technologies, Inc.
