You are not logged in. Please login or register.
SoliForum - 3D Printing Community → Help/Repair/Maintenance → Perimeters not connecting?
Okay so I have been running into an issue with my solidoodle 3. I played with the extrusion and the perimeter width in the Advanced slicer settings but I cant seem to get the perimeters to connect. What I mean is I am trying to print a vase with 3 perimeters and i can stick my finger in between each one. The layers are adhearing fine but perimeters will not join together into one. Any suggestions? Thanks guys!
Are the perimeters not sticking equally all the way around the vase? If so... you may need to increase the extrusion width slightly.
Correct. The effect im seeing is perfectly the same all the way around it. Im upping the temp (black PLA btw) from 205-210 and increasing the default extrusion width from .35 to .4. Ill post the results when i get out of work in 3 and a half hours!
your default extrusion width should be greater than .4mm unless you are running a very small nozzle
I cant remember what the stock nozzle size is but I think it is .4mm
With the .35 nozzle we use .42, the .40 nozzle should use .48.
With the .35 nozzle we use .42, the .40 nozzle should use .48.
Source for these numbers? I've been running my SD2 with stock 0.4mm nozzle at a default width of 0.42mm for a while and I get good prints. This is from solidoodle's website where the recommend a width/ thickness ratio of 1.3 so for 0.3mm layers: 0.3*1.3= 0.42mm default extrusion width.
http://support.solidoodle.com/hc/en-us/ … alibration
I'm not saying there is only one way to do it, just curious why you do it this way?
@mdrVB6 - I believe that is because, although it's claimed to be a .40 nozzle on the solidoodle, I hear lots of people in the forums saying it is in fact .35. I too have mine set like you and after doing my step calibrations, I was pretty happy.
I say was because of another problem I'm having now. I got it all dialed in and was gonna start trying .1 printing and ended up moving my setup and now I'm having issues that I think are motor related.
If I recall correctly, the basis for the measurement is the normal expansion of the filament as it exits the nozzle. We've been using 20% expansion, or 1.2 times the actual nozzle diameter. One of the calibrations is a single filament width per side empty cube. We adjust the "extrusion multiplier" until the single sides equal the expected expansion width. See: http://wiki.solidoodle.com/flow-rate
If I recall correctly, the basis for the measurement is the normal expansion of the filament as it exits the nozzle. We've been using 20% expansion, or 1.2 times the actual nozzle diameter. One of the calibrations is a single filament width per side empty cube. We adjust the "extrusion multiplier" until the single sides equal the expected expansion width. See: http://wiki.solidoodle.com/flow-rate
+1
If I recall correctly, the basis for the measurement is the normal expansion of the filament as it exits the nozzle. We've been using 20% expansion, or 1.2 times the actual nozzle diameter. One of the calibrations is a single filament width per side empty cube. We adjust the "extrusion multiplier" until the single sides equal the expected expansion width. See: http://wiki.solidoodle.com/flow-rate
Right, I have done that calibration too. So I guess there is not a big difference on setting your width to 0.42 or 0.48 mm, as long as it comes out to what you set it for on the calibration test.
ggunners wrote:If I recall correctly, the basis for the measurement is the normal expansion of the filament as it exits the nozzle. We've been using 20% expansion, or 1.2 times the actual nozzle diameter. One of the calibrations is a single filament width per side empty cube. We adjust the "extrusion multiplier" until the single sides equal the expected expansion width. See: http://wiki.solidoodle.com/flow-rate
Right, I have done that calibration too. So I guess there is not a big difference on setting your width to 0.42 or 0.48 mm, as long as it comes out to what you set it for on the calibration test.
Except that you are setting the tool paths with that number. So if you set it lower than .48 and then wondering why your perimeters aren't connecting you've found your answer. I have covered this extensively before. Every variable affects other variables, of course you can tweak extrusion multiplier to get the correct extrusion but that's there as a necessary fudge factor just for extrusion volume. Set the extrusion width to something absurd like 4 mm's and then look at the generated G-code.
I have my width set to .5mm, and the calibration set to .51 to .52. Since the width/tool path is set to .5, and I'm over extruding just a tad, I get nicely connected lines with parts that hold water. I use .5 just so its a tad easier on the slicer to make smaller walls. Have you tried letting Slic3r adjust the width by itself, by putting 0 for default width? As long as you know you have it dialed in it might clear up some of your issues.
One thing you could try is another slicer. Even though Slic3r is the mainstream now since it's integrated with Repetier Host, I find its not all that accurate sometimes. At the moment I'm trying out Cura, which ships with the Ultimakers. Quite a bit less settings than Slic3r but I'm already seeing improvement in tool paths with it. One key feature is the overlap infill setting which helps connect the infill to perimeters nicely. Not your particular problem but
SoliForum - 3D Printing Community → Help/Repair/Maintenance → Perimeters not connecting?
Powered by PunBB, supported by Informer Technologies, Inc.
