Bad Print Quality

Khilborn
Posts: 18
Joined: Tue Apr 14, 2015 9:32 pm

Re: Bad Print Quality

Post by Khilborn » Fri Apr 24, 2015 1:17 am

Orest, you should really calibrate you printer using a cube first. You are trying to print a to complex object and your printer is not even calibrated correctly.

Khilborn
Posts: 18
Joined: Tue Apr 14, 2015 9:32 pm

Re: Bad Print Quality

Post by Khilborn » Fri Apr 24, 2015 1:18 am

zhangxueyou wrote:The distance between nozzle and hot bed is still not low enough. No gap between the lines of first layer is the best.
I can barely get a piece of paper between the hot end and the bed. Its really snug.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: Bad Print Quality

Post by zhangxueyou » Fri Apr 24, 2015 4:34 pm

Khilborn wrote:
zhangxueyou wrote:The distance between nozzle and hot bed is still not low enough. No gap between the lines of first layer is the best.
I can barely get a piece of paper between the hot end and the bed. Its really snug.
Calibrate it when printing.

orest
Posts: 18
Joined: Fri Apr 03, 2015 2:55 pm

Re: Bad Print Quality

Post by orest » Sat Apr 25, 2015 11:13 am

In terms of calibration. Is there a procedure that is described somewhere, in terms of what to vary and what I should get? I have not been provided one by Geeetech. Regarding the structures that I printed, I already did a cube and a box that Geeetech send me. This current piece is a calibration piece that I got from RepRap that prints several openings of different shapes. The purpose of the piece is to reveal reproducibility of shapes and to determine if there is rounding. The key point from all of the pieces that I ran is that the bottom layers are messed up and the print quality gets better near the top.

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: Bad Print Quality

Post by zhangxueyou » Mon Apr 27, 2015 5:37 pm

You can smear a layer of glue or spray hair sprayer on bed to let the first layer stick to it.

veritech
Posts: 6
Joined: Tue Apr 07, 2015 12:07 am

Re: Bad Print Quality

Post by veritech » Wed May 13, 2015 3:55 am

I finally got a print job out. after figuring out the hairspray / glue on the bed print head heights, etc.

Is there a good document on a calibration on the machine? I just purchased the Geeetech Prusa pro i3b w/ 1.75mm material and .3mm nozzle
my test print looks horrible. almost like the plastic isn't extruding fast enough. When it was printing the infill, it wasn't solid lines. more the size it should be on the ends and stringy in between

I would love to find some test print, already g-code that I could load into Repiere software to test hardware and rule out the slicer and config files.

Thanks

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: Bad Print Quality

Post by zhangxueyou » Wed May 13, 2015 9:27 am

veritech wrote:I finally got a print job out. after figuring out the hairspray / glue on the bed print head heights, etc.

Is there a good document on a calibration on the machine? I just purchased the Geeetech Prusa pro i3b w/ 1.75mm material and .3mm nozzle
my test print looks horrible. almost like the plastic isn't extruding fast enough. When it was printing the infill, it wasn't solid lines. more the size it should be on the ends and stringy in between

I would love to find some test print, already g-code that I could load into Repiere software to test hardware and rule out the slicer and config files.

Thanks
We are preparing the document.

Hussain14
Posts: 6
Joined: Wed Apr 29, 2015 10:35 pm

Re: Bad Print Quality

Post by Hussain14 » Fri May 15, 2015 9:36 pm

Greetings,

Finally, when I was able to print. i got a very bad quality printing.
I used the setting that you share for Printer I3 B, ABS 1.75, nozzle 0.3 as default when buying.
.
the picture below is talking:
التقاط.JPG
التقاط.JPG (51.58 KiB) Viewed 12268 times
I used Temperture trying from 240 up to 255,a and 95 up to 110 for hotbed
the problem is that the filnamnet is not melting very well and not going out from the nozzle very well, and then not stucking well on the hotbed.
I tried to clean the nozzle,, but still the problem not solved.

Please help to solve this issue, because i spent alot of time trying to run the printer in good condition.

Thanx,

zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: Bad Print Quality

Post by zhangxueyou » Mon May 18, 2015 8:53 am

Hi, you can smear a layer of glue if the filament can not stick to hotbed.
And you can refer to the slicer settings at this page:
http://www.geeetech.com/forum/viewtopic ... 14&t=16366

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