Yes, I think so, but I am a bit afraid this "solution" can give me other drawbacks. Until it's fixed - I'll try to use a known good width. (had same problem with freshly downloaded skeinforge)by Andke - Skeinforge
I am using sfact (kliment-Printrun-d9193e4) When processing printing the attached STL object - I get gcode for hollow wall on some wall thickness. - it's failing to draw a full top and bottom layer too..by Andke - Skeinforge
First, : thank you. It did the job much faster than sfact (using pronterface) - also, worked very well with default values. Only changes I made was temperature 185 (PLA) and max speed wherever it was 60 - changed to 40mm/s (it just felt a bit too fast) -I downloded this STL: -processed it using -Slic3d it - and printed. (see attached gcode) Please observe few "errors" 1.- One of the thinnerby Andke - Slic3r
ok - I downloaded current experimental branch of pronterface. kliment-Printrun-0dd3ce3 executed it nd wanted to change settings: I see the text "Entering skeinforge settings: python skeinforge/skeinforge_application/skeinforge.py" but nothing more happens. is the integration supposed to work ?by Andke - Slic3r
Thank you, I am still using printrun with sfact. + kliment-Sprinter firmware on the RepRap What's the "way to go" - to be "up to date" and get new features ? - Slic3r ?by Andke - Skeinforge
bump?by Andke - Skeinforge
Hi, I did not update any software for a long time, using kliment-Printrun-d9193e4 Is that project still maintained/still "the way to go" ? It's working fine, the only thing I really miss is the ability to print supports.by Andke - Skeinforge
Yep - the solution was to correct E-steps - it was way too high (default700) - accurate= 615. Thank you.by Andke - Plastic Extruder Working Group
ok, thank you, the print is fully usable despite the few errors in the curved overhang.by Andke - Printing
ok, thanks - no, it's not the first layer, and it's not an insane overhang. So, show can I increase perimeter extrusion ?by Andke - Printing
-There are a few "problems" - the uneven mess on the walls are caused by diagonal travel to the mounts in corners. -some ooze (?) besides the columns inside, easy to break off -And, the curved "half-pipe" in the bottom, have some "strings" directly diagonally, instead of a smooth overhanging edge. May I guess there's loo little extruder reversing ? - what about the round overhang - filament dby Andke - Printing
Great idea, check out the attachment in this post: caused by possibly too hot hotend that needed to compensate for the fan blowing on it.by Andke - General
Thanks for the help. After diverting airflow from the fan to *only* the cooling fins, the problem is gone. - no more jams.by Andke - Reprappers
do you know any faster method of reproducing backflow than printing for an hour (I am using low extrusion speeds, 6-8mm/s) ? I tried to extrude by manually turning the gear while "blocking" the nozzle with a piece of cardboard to simulate too rich feed - no jam after 5cm of extrusion, no increased resistance on the gear. I also tried to let the hotend be idle for several minutes, hoping for moreby Andke - Reprappers
Regarding "too hot" Just to be sure - I purchased a professional dual channel thermometer (looks like a multimeter) - not that it's far from the IR one I used before. While shielding only the probe end rrom the fan blowing on it , I adjusted the nozzle to be 185 degreesC (that is "198" for the printer) I tried to lower the temperature before, but I guess back flow can be caused by too low teby Andke - Reprappers
Hi, Thanks for helping. This is a photo of the "problem" - during "normal operation" if unloaded, there's no wider section at the bottom. One side of the end have a clear "notch" mostly on one side. My filament is close to 3.0mm, some sections are 2.9x or so. What should I do to correct this problem ? Out of pure desperation, I ordered a new hotend, even assembled, just to avod me making anby Andke - Reprappers
I am using this one with PLA After some printing, usually longer time, it manages to squeeze some 2-3 mm hot PLA upwards, making a "blob" that jams (makes it very hard to push down new/more PLA.) - until I unload , clip off that end, reload, and continue. What may be the problem ? - I do have a fan blowing on the cooling fin and the hotend. - and my fill settings is currently too lean - soby Andke - Reprappers
Hi, I am extruding 0,4mm height, 0,6mm width. , calibrated extruder, 3.0mm filament , and building perfect 0.6mm thin walls. (using the 0.5mm test object) SFACT draws perfect triple walls, with space inbetween, when filling the surface, it's sinmply too dense, nozzle can barely eject the material to one side , and goes eventually full. is it so, that the 0.5mm test object must me 0.5mm ? . isby Andke - Plastic Extruder Working Group
ok, so you use a 0.5mm nozzle, with 0,3mm layer ? - and extrusion width is then ~0.7? what's your measured extrusion width ? If I reduced layer thickness, (using 0.4 now) that would most likely reduce the possibility of dragging filament in a shortcut across a circle.by Andke - Plastic Extruder Working Group
If I go that fast, filament gets dragged from it's place on travel or circle, before bonding with the layer beneath. what extruder/hotend do you use ? (I too use bigger than normal prusa mendel, with linear bearings )by Andke - Plastic Extruder Working Group
what would you suggest ? - current settings are 10 and 6mm/s (perimeter)by Andke - Plastic Extruder Working Group
It's a larger version of Prusa Mendel, did not experiment yet with higher speeds, I need precision over speed. - and with higher speed, the extruded plastic is sometimes not as perfectly placed, as with lower speed.by Andke - Plastic Extruder Working Group
The help on SFACT's Speed tab is not helping much, so I need to ask: If my "main feed rate" is 12mm/s and perimeter is 6mm/s What If I wish to slow down bridge printing ? "Bridge Feed rate ratio to perimeter feed" (default 1) should be set to something close or equal to the value of "bridge flow rate (scaler)" (default 1) ? So If I set both to 0.7 - I'll get 70% of the 6mm/s speed - with proby Andke - Plastic Extruder Working Group
you mean like : ? would that even fit my "wades geared extruder ?"by Andke - General
I had air blowing on *only* the cooling fin part (cool part) of this extruder. got increased problems with stuck filament, much resistance during extrusion. Seems like I have to have some more air, and a bit bigger area ..by Andke - Plastic Extruder Working Group
I have a fan that blows on the cold end's heatsink - and *only* that. still - when I insert filament - it's easily pushed down to the hotend (extruding), after a pause, there's much more resistance. (more force is needed to extrude.) Would you suggest a fan should blow on both the heatsink *and* the hotend ? (and as little as possible on the extruded material ?)by Andke - General
Thanks for the nozzle info. I reduced the nozzle temperature, reducing jams. (it was on the higher side to improve sticking to hotbed.) Then I sanded the hotbed (kapton) Will lubricate the nozzle as advised - thanks.by Andke - General
Specs: It's a modified (extra big, but currently with standard hotbed) Prusa Mendel. Wades geared extruder, and this bolt, gives usually plenty grip until it for some reason slips: I am using this hotend: - but threaded a hole, and mounted the thermistor be fixed using a screw. - Printed at 185degree and up to 200degree to compensate for distance between thermistor and printhead (PLA did notby Andke - General
Thanks - what specs should I provide ? machine model ? - sfact settings ? what's a good feed rate ? mine is 10mm/s - rpinting perimeter at 5mm/s , inside at 6mm/sby Andke - General