wenganxiang wrote:

Hi, everyone. This passage is mainly written for  those who uses 3D printer for the first time.
I want to share some printing results with different slicer settings. Hope this will help some of you.

Thanks for making this - I don't have any experience with PLA and many people can benefit from actually seeing different options put into practice.

However, I do agree that most prints only really need 15-20% infill and the infill should have holes.  The idea is to only use enough plastic to support the top sections of the object and make the object rigid but not solid.

Many of your prints do look good to me but others more experienced with PLA may offer different advice.

In my own experience, I think the diffrence between PLA and ABS is temperature setting. I change nothing but temperature in slicer settings when I change filament with ABS. If you see the bottom of the model bent, you can raise the temperature of bed. If necessary, you can smear a layer of glue.

Holy crap, so if I used the 40% default infill for slicer is too much ? But I tought that the 2 succesfull printing so far looks stragely strong.

If you just want to print a model, I suggust below 25% infill. If you want to print something strong, then a higher infill is considerable.

wenganxiang wrote:

ysb wrote:

1 / something is wrong with the calibration of your printer... 30 % is waaaayyy too much, even 15% is too much (if strength is not your main goal)...

my models are printed with infill between 10 and 12% and no holes...

2 / 3 loops of skirt is too much.. only one loop is necessary as this function is only to fill your extruder nose before the start of the print of the main model ... if you need more than one loop, again there is a problem somewhere (or your model is REALLLY small) ...

3/ Brim is a function for the problems of 'warping" to "stick" the model to the bed... the number is for the number of mm (width , use only one layer in general) of the band that will be add to the base of the model  .. 4 or 5 mm is good if your model use sharp angles (like a cube).. you can use even more for a really big sharp angle model...

1. It depends on the character of the printer, maybe 10% infill is good enough for some printers but some need 20% infill. That I raise the infill to 30% does not mean my printer really need 30% infill to have a high quality printing. I just want people to know what will change if I change a parameter.

2. For my printer, I don't even need a skirt. Just for an obvious difference.

3. Thank you for your prompt, because I don't know what the brim is used for.

And thank you again for your suggestions.

In theory and even practice if your printer is calibrated correctly it should perform the same as other printers in its class. The only deciding factor would be the quality of your hot end. A well tuned type "A" printer should print the same as another model next to it with same settings.

In a way,I agree with you. A bad hot end may cause clogging during printing.

Hi, everyone. This passage is mainly written for  those who uses 3D printer for the first time.
I want to share some printing results with different slicer settings. Hope this will help some of you.

Thanks for making this - I don't have any experience with PLA and many people can benefit from actually seeing different options put into practice.

However, I do agree that most prints only really need 15-20% infill and the infill should have holes.  The idea is to only use enough plastic to support the top sections of the object and make the object rigid but not solid.

Many of your prints do look good to me but others more experienced with PLA may offer different advice.

if your printer NEED 40 % infill to make good pieces, some of your other parameters are way off ... (like the calibration of your extruder or parameters related too..)

ysb wrote:

1 / something is wrong with the calibration of your printer... 30 % is waaaayyy too much, even 15% is too much (if strength is not your main goal)...

my models are printed with infill between 10 and 12% and no holes...

2 / 3 loops of skirt is too much.. only one loop is necessary as this function is only to fill your extruder nose before the start of the print of the main model ... if you need more than one loop, again there is a problem somewhere (or your model is REALLLY small) ...

3/ Brim is a function for the problems of 'warping" to "stick" the model to the bed... the number is for the number of mm (width , use only one layer in general) of the band that will be add to the base of the model  .. 4 or 5 mm is good if your model use sharp angles (like a cube).. you can use even more for a really big sharp angle model...

1. It depends on the character of the printer, maybe 10% infill is good enough for some printers but some need 20% infill. That I raise the infill to 30% does not mean my printer really need 30% infill to have a high quality printing. I just want people to know what will change if I change a parameter.

2. For my printer, I don't even need a skirt. Just for an obvious difference.

3. Thank you for your prompt, because I don't know what the brim is used for.

And thank you again for your suggestions.

In theory and even practice if your printer is calibrated correctly it should perform the same as other printers in its class. The only deciding factor would be the quality of your hot end. A well tuned type "A" printer should print the same as another model next to it with same settings.

1 / something is wrong with the calibration of your printer... 30 % is waaaayyy too much, even 15% is too much (if strength is not your main goal)...

my models are printed with infill between 10 and 12% and no holes...

2 / 3 loops of skirt is too much.. only one loop is necessary as this function is only to fill your extruder nose before the start of the print of the main model ... if you need more than one loop, again there is a problem somewhere (or your model is REALLLY small) ...

3/ Brim is a function for the problems of 'warping" to "stick" the model to the bed... the number is for the number of mm (width , use only one layer in general) of the band that will be add to the base of the model  .. 4 or 5 mm is good if your model use sharp angles (like a cube).. you can use even more for a really big sharp angle model...

1. It depends on the character of the printer, maybe 10% infill is good enough for some printers but some need 20% infill. That I raise the infill to 30% does not mean my printer really need 30% infill to have a high quality printing. I just want people to know what will change if I change a parameter.

2. For my printer, I don't even need a skirt. Just for an obvious difference.

3. Thank you for your prompt, because I don't know what the brim is used for.

And thank you again for your suggestions.

my models are printed with infill between 10 and 12% and no holes...

2 / 3 loops of skirt is too much.. only one loop is necessary as this function is only to fill your extruder nose before the start of the print of the main model ... if you need more than one loop, again there is a problem somewhere (or your model is REALLLY small) ...

3/ Brim is a function for the problems of 'warping" to "stick" the model to the bed... the number is for the number of mm (width , use only one layer in general) of the band that will be add to the base of the model  .. 4 or 5 mm is good if your model use sharp angles (like a cube).. you can use even more for a really big sharp angle model...

As you can see in the picture, there are still many holes unfilled with 15% infill density. But the model is full filled with 30% infill density.

2. Skirt loops
      0 vs 3
http://www.soliforum.com/misc.php?actio … mp;preview
  Obvious difference as you can see in the pictures above. Personally, I suggust you'd best print at least 3 loops of skirt, because the filament may not come out from the nozzle immediately. The printer will print the skirt first.

3. Brim width
     0 vs 1
http://www.soliforum.com/misc.php?actio … mp;preview
  If the brim width is 0, printer will print 100% as same as the stl file. if the brim width is 1, printer will printer another brim, as you can see in  the right side of picture.

4. Extrusion of first layer
    100% vs 200% vs 400%
http://www.soliforum.com/misc.php?actio … mp;preview

5. Vertical shells:perimeters(minimum)
     2 vs 4
http://www.soliforum.com/misc.php?actio … mp;preview

Look at the edge of these 2 models. If perimeter is 2, there are 2 loops of brim on each layer, and the model has a better look.

If you think there's something worth sharing,  I will be glad if you leave your advice.