047 TESTING SKEINFORGE SHELLS

Same as [046]. Changed Extra Shells on Base from 1.0 to 2.0. Changed Extra Shells on Sparse Layers from 2.0 to 3.0. Model requires some support structure to print adequately. By increasing the shells, the model was improved.

Print time: [00:31:03]   Total Service Hours: [36:43:39]

 046 TESTING SKEINFORGE BRIDGING

Testing Skeinforge with default settings.  Temp at 215c. Change Packing density to 1.05.  Keep Bridge Feed Rate Multiplier (ratio) at 0.8. Keep Bridge Flow Rate Multiplier (ratio) at 0.8. ABS 1.75mm . Model destroyed by removing from plate.

Print time: [00:29:35]   Total Service Hours: [36:12:36]

 045 TESTING SKEINFORGE BRIDGING

Testing Skeinforge with default settings.  Changed temp from 220 c. to 215c. Kept Packing density at 1.15.  Changed Bridge Feed Rate Multiplier (ratio) from 1.0 to 0.8. Changed Bridge Flow Rate Multiplier (ratio) from 1.0 to 0.8. ABS 1.75mm .

Print time: [00:29:30]   Total Service Hours: [36:41:01]

 044 TESTING SKEINFORGE SLICER

Testing Skeinforge with default settings.  Changed temp back to 220 c. from 215c. Kept Packing density at 1.15.  ABS 1.75mm .

Print time: [00:29:14]   Total Service Hours: [36:40:45]

 043 TESTING SKEINFORGE SLICER

Testing Skeinforge with default settings.  Changed temp from 220 c. to 215c. Changed Packing density to 1.15.  ABS 1.75mm .

Print time: [00:29:14]   Total Service Hours: [36:11:31]

 042 TESTING SKEINFORGE SLICER

Testing Skeinforge with default settings.  220 c. ABS 1.75mm .

Print time: [00:29:14]   Total Service Hours: [35:42:17]

 041 TESTING SLIC3R SLICER

Testing Slic3r 1.2.9 with default settings. Cooling set to 15s from 30s. 220 c. ABS 1.75mm . 0.5mm nozzle.

Print time: [00:22:46]   Total Service Hours: [35:13:03]

 040 TEST CURA SLICER

Testing Cura 15.04.2 with default settings. Cooling set to 15s from 5s. 220 c. ABS 1.75mm . 0.5mm nozzle.

Print time: [00:22:09]   Total Service Hours: [34:50:17]

 039 HARDWARE MODIFICATION TO Z AXIS

Made a permanent modification to the Z axis to eliminate the wobble. Default settings on Skeinforge. The ripple along the 300mm model has decreased, but hasn’t disappeared. Will hold to this physical design for now.

Print time: [03:19:13]   Total Service Hours: [34:28:08]

 038 TESTING SKEINFORGE SPEED SETTINGS

20mm calibration cube. Feed Rate (mm/s) and Flow Rate Setting (float) 64.0. Changed back to default Cooling Minimum Layer Time (secs.) 15.0 from 5.0. Temp 220 c. Perimeter Feed Rate over Operating Feed Rate (ratio) and the Perimeter Flow Rate over Operating Flow Rate (ratio)  0.4. Default profile speed is 16:08. Makes a saving of 52 seconds for this profile on this scale of model.

Print time: [00:15:12]   Total Service Hours: [31:08:55]

 037 TESTING SKEINFORGE SPEED SETTINGS

20mm calibration cube. Changed Feed Rate (mm/s) and Flow Rate Setting (float) from 80.0 to 64.0. Cooling Minimum Layer Time (secs.) 5.0. Temp 220 c. Perimeter Feed Rate over Operating Feed Rate (ratio) and the Perimeter Flow Rate over Operating Flow Rate (ratio)  0.4. Much better.

Print time: [00:09:45]   Total Service Hours: [30:53:43]

 036 TESTING SKEINFORGE SPEED SETTING

20mm calibration cube. Changed Feed Rate (mm/s) and Flow Rate Setting (float) from 96.0 to 80.0. Cooling Minimum Layer Time (secs.) 5.0. Changed temp from 215 c. to 220 c. Changed Perimeter Feed Rate over Operating Feed Rate (ratio) and the Perimeter Flow Rate over Operating Flow Rate (ratio) from 0.8 to 0.4. Little better.

Print time: [00:08:52]   Total Service Hours: [30:43:58]

 035 TESTING SKEINFORGE SPEED SETTINGS

20mm calibration cube. Changed Feed Rate (mm/s) and Flow Rate Setting (float) from 128.0 to 96.0. Cooling Minimum Layer Time (secs.) 5.0. Changed temp from 230 c. to 215 c. Not much better.

Print time: [00:07:45]   Total Service Hours: [30:35:26]

 034 TESTING SKEINFORGE SPEED SETTINGS

20mm calibration cube. Feed Rate (mm/s) and Flow Rate Setting (float) is 128.0. Cooling Minimum Layer Time (secs.)  5.0. Changed temp from 215 c. to 230 c. Better flow. Model very warm and distorted by pick up.

Print time: [00:07:39]   Total Service Hours: [30:27:41]

 033 TESTING SKEINFORGE SPEED SETTINGS

20mm calibration cube. Feed Rate (mm/s) and Flow Rate Setting (float) is 128.0. Temp 215 c. Changed cooling Minimum Layer Time (secs.) from 15 to 5.0. Distortion of perimeter walls and inadequate flow on solid layers. Time saved 6 minutes 59 secs.

Print time: [00:07:39]   Total Service Hours: [30:20:02]

 032 TESTING SKEINFORGE SPEED SETTINGS

Changed to 20mm calibration cube. Feed Rate (mm/s) and Flow Rate Setting (float) is 128.0. Temp 215 c.

Print time: [00:14:38]   Total Service Hours: [30:12:23]

 031 TESTING SKEINFORGE SPEED SETTINGS

Calibration step pyramid (5mm steps). Feed Rate (mm/s) and Flow Rate Setting (float) is 128.0. Time saved 10 sec. Skeinforge cooling is keeping the print speed down on this scale of model.

Print time: [00:18:23]   Total Service Hours: [29:57:45]

 030 TESTING SKEINFORGE SPEED SETTINGS

Calibration step pyramid (5mm steps). Feed Rate (mm/s) and Flow Rate Setting (float) is 64.0. Time saved 39 sec.

Print time: [00:18:33]   Total Service Hours: [29:39:22]

 029 TESTING SKEINFORGE SPEED SETTINGS

Next series of ten tests are to dial in the fastest printing speeds with optimum surface quality. Skeinforge only in this round of tests. ABS 1.75mm  filament. Calibration step pyramid (5mm steps). Default Feed Rate (mm/s) and Flow Rate Setting (float) is 32.0.

Print time: [00:19:12]   Total Service Hours: [29:20:49]

 028 TESTING SKEINFORGE SUPPORT SETTINGS

Printed Thing:337423. Used default Durbie profile with Skeinforge. Made these changes: Initiated support at 50 degrees. Set Base layers at 0 from 1.  Set Interface Infill density (ratio) at 0.25 from 0.5.  Set Interface layers to 2 from 0.  Set Support Flow Rate over operating flow rate (ratio) to 0.8 from 1.0.  Printed well with good removable support for this model.

Print time: [02:11:13]   Total Service Hours: [29:01:37]

 027 EXTRUDER SWAP FROM 3.0 TO 1.75MM

Hardware change. Swapped the 3.0mm extruder system for a 1.75mm setup. Printed the surface calibration test. OK except luminous 1.75mm filament is old and retaining moisture. This creates an odd texture.

Print time: [00:20:06]   Total Service Hours: [26:52:24]

 026 TESTING SKEINFORGE SUPPORT MATERIAL

Testing new default settings with thing:481483 at 100mm tall. Default support was added at 50 degree angle. Very difficult to remove. Lost the wings in the process.

Print time: [02:34:00]   Total Service Hours: [26:32:18]

 025 TESTING SKEINFORGE WITH NEW SETTINGS

Testing something more interesting. Changed Skeinforge profile back to 15s min layer in cool. Temperature for 3.0mm ABS is 215 degrees C. Thing: 1019953 is 38mm tall and delicate. Nice print.

Print time: [00:28:56]   Total Service Hours: [23:58:18]

 024 ADJUSTING EXTRUDER TEMPERATURE

Same as [023]. Lowered temp to 215 C. Better. Will keep this temp as default.

Print time: [00:15:42]   Total Service Hours: [23:29:22]

 023 ADJUSTING SKEINFORGE COOLING PARAMETERS

Same as [022]. Changed cooling from 15s to 5s. Temp at 230 C. Worse.

Print time: [00:15:42]   Total Service Hours: [23:13:40]

 022 EXTRUDER HARDWARE CHANGE

Hardware change. Swapped the ceramic nichrome wire  heat core with an aluminum block and ceramic heat cartridge. Printed [021] at 230 degrees C. The ripple has disappeared.

Print time: [00:20:03]   Total Service Hours: [22:57:58]

 021 ADJUSTING FIRMWARE EXTRUDER TEMP CONTROL

Changed acceleration values in Marlin back to 3000 from 1000. Disabled PID and enabled bang-bang for temp control in firmware. No noticeable change, suspicions now lie with the physical attributes of the hot end. There appears an undulation in the upper pillar due to  a  swing of the hot end temp.

Print time: [00:20:03]   Total Service Hours: [22:37:55]

 020 ADJUSTING FIRMWARE ACCELERATION UNITS

Checking to see if acceleration values have any effect. Changed acceleration from 3000 to 1000 in Marlin firmware. All other aspects same as print [019]. No noticeable change.

Print time: [00:20:16]   Total Service Hours: [22:17:52]

 019 TESTING SURFACE QUALITY

Same as print [015]. Filament packing density is kept at 1.15. Temperature is at 180 degrees c.  Attempting to resolve pillar distortion without utilizing orbit cooling. Still distortion at upper layers.

Print time: [00:20:03]   Total Service Hours: [21:57:46]

 018 TESTING SKEINFORGE COOLING PARAMETERS

Same as print [017]. Changed filament packing density back from 1.2 to 1.15. Changed cool to orbit after 15s min. There’s a lot of ooze. A portion of the top pillar did not adhere. After a brush off of the model, what remains intact appears good.

Print time: [00:21:33]   Total Service Hours: [21:37:43]

 017 ADJUSTING SKEINFORGE FILAMENT FEED RATE

Same as print [016]. Changed filament packing density to 1.2. Not enough filament and no change to pillar distortion.

Print time: [00:15:52]   Total Service Hours: [21:16:16]

 016 TESTING SKEINFORGE COOLING PARAMETERS

Same as [015]. Changed cooling from 15s  to  5s  under cooling. Appears worse.

Print time: [00:15:52]   Total Service Hours: [21:00:24]

 015 TESTING SURFACE QUALITY

Surface calibration test model. With new setting of filament packing density of 1.1 and 185 degrees c. Better, but distortion still at top of square pillar.

Print time: [00:20:03]   Total Service Hours: [20:44:32]

 014 TESTING SKEINFORGE FILAMENT FEED RATE

Same as print [013]. Filament packing density was changed from 1.0 to 1.1.

Print time: [00:7:56]   Total Service Hours: [20:24:29]

 013 TESTING SKEINFORGE FILAMENT FEED RATE

Testing the filament feed. Printing a 5mm thin wall model 20mm x 20mm. Skeinforge slicing at 185 c.

Print time: [00:7:56]   Total Service Hours: [20:16:33]

 012 TESTING EXTRUSION TEMPERATURE PARAMETERS

Same print test as [011]. Temperature lowered from 190 degrees c. to 185 c.

Print time: [00:20:03]   Total Service Hours: [20:08:37]

 011 TESTING EXTRUSION TEMPERATURE PARAMETERS

Testing the slicer Skeinforge settings by printing the surface calibration model using default Durbie Normal profle as a start. Temp. 190 degrees C. 3.0mm ABS filament at 0.4mm layer.

Print time: [00:20:03]   Total Service Hours: [19:48:34]

 010 TESTING THE Z AXIS

A temporary modification is made to eradicate the Z axis wobble. A 20mm x 20mm calibration cube extended to 300mm is used for the test.

The modification was successful. The wobble has been greatly reduced.

Print time: [03:23:15]   Total Service Hours: [19:28:31]

 009 TESTING THE Z AXIS

Another test of the calibration cube extended to full height of 458mm.

The Z axis was adjusted in attempt to rid the repeating striations on the length of the test object, but the results faired no better than the first print run [007].

Print time: [05:09:00]   Total Service Hours: [16:05:16]